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Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 9 — Apr. 26, 2010
  • pp: 9423–9428
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Nonlinear dynamics induced by parallel and orthogonal optical injection in 1550 nm Vertical-Cavity Surface-Emitting Lasers (VCSELs)

Antonio Hurtado, Ana Quirce, Angel Valle, Luis Pesquera, and Michael J. Adams  »View Author Affiliations


Optics Express, Vol. 18, Issue 9, pp. 9423-9428 (2010)
http://dx.doi.org/10.1364/OE.18.009423


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Abstract

We report a first experimental study of the nonlinear dynamics appearing in a 1550 nm single-mode VCSEL subject to parallel and to orthogonal optical injection. For the first time to our knowledge we report experimentally measured stability maps identifying the boundaries between regions of different nonlinear dynamics for both cases of polarized injection. A rich variety of nonlinear behaviours, including periodic (limit cycle, period doubling) and chaotic dynamics have been experimentally observed.

© 2010 OSA

1. Introduction

Long-wavelength Vertical-Cavity Surface Emitting Lasers (VCSELs) emitting at the telecom wavelength of 1550 nm are very promising devices as they offer inherent advantages in comparison to edge-emitting devices. These advantages include, reduced fabrication costs, high coupling efficiency to optical fibres, on-wafer testing capability, ease of fabrication of 2D arrays, single-mode operation, low-threshold current, compactness, etc [1

1. F. Koyama, “Recent advances of VCSEL photonics,” IEEE J. Lightwave. Technol. 24(12), 4502–4513 (2006). [CrossRef]

]. Additionally, optical injection locking is a well known technique to improve the performance of semiconductor lasers without modifying the laser design [2

2. R. Lang, “Injection locking properties of semiconductor laser,” IEEE J. Quantum Electron. 18(6), 976–983 (1982). [CrossRef]

4

4. X. Meng, T. Chau, and M. C. Wu, “Experimental demonstration of modulation bandwidth enhancement in distributed feedback lasers with external light injection,” Electron. Lett. 34(21), 2031–2032 (1998). [CrossRef]

]. Recently, reduced chirp, reduced nonlinearities and enhanced modulation bandwidth [5

5. C.-H. Hang, L. Chrostowski, and C. J. Chang-Hasnain, “Injection locking of VCSELs,” IEEE J. Sel. Top. Quantum Electron. 9(5), 1386–1393 (2003). [CrossRef]

7

7. Q. Gu, W. Hoffmann, M.-C. Amann, and L. Chrostowski, “Optically injection-locked VCSEL as a duplex transmitter/receiver,” IEEE Photon. Technol. Lett. 20(7), 463–465 (2008). [CrossRef]

] have been reported in injection-locked 1550nm-VCSELs, making these devices ideal candidates for use as stable sources in present and future optical telecommunication networks.

Additionally, the effect of polarized optical injection in VCSELs has attracted increasing interest in the last years [8

8. Z. G. Pan, S. Jiang, M. Dagenais, R. A. Morgan, K. Kojima, M. T. Asom, R. E. Leibenguth, G. D. Guth, and M. W. Focht, “Optical injection induced polarization bistability in vertical-cavity surface-emitting lasers,” Appl. Phys. Lett. 63(22), 2999–3001 (1993). [CrossRef]

21

21. A. Hurtado, I. D. Henning, and M. J. Adams, “Differences in the injection locking bandwidth in 1550nm-VCSELs subject to parallel and orthogonal optical injection”, IEEE 21st International Semiconductor Laser Conference, 2008, ISLC 2008, 87–88, Sorrento (Italy), 14–18 September 2008.

]. In particular, orthogonally-polarized optical injection has been used to obtain Polarization Switching (PS) and Polarization Bistability (PB) in short- [8

8. Z. G. Pan, S. Jiang, M. Dagenais, R. A. Morgan, K. Kojima, M. T. Asom, R. E. Leibenguth, G. D. Guth, and M. W. Focht, “Optical injection induced polarization bistability in vertical-cavity surface-emitting lasers,” Appl. Phys. Lett. 63(22), 2999–3001 (1993). [CrossRef]

] [9

9. I. Gatare, J. Buesa, H. Thienpont, K. Panajotov, and M. Sciamanna, “Polarization switching bistability and dynamics in vertical-cavity surface-emitting laser under orthogonal optical injection,” Opt. Quantum Electron. 38(4-6), 429–443 (2006). [CrossRef]

] and in long-wavelength VCSELs [10

10. K. H. Jeong, K. H. Kim, S. H. Lee, M. H. Lee, B. S. Yoo, and K. A. Shore, “Optical injection-induced polarization switching dynamics in 1.5 μm wavelength single-mode vertical-cavity surface-emitting lasers,” IEEE Photon. Technol. Lett. 20(10), 779–781 (2008). [CrossRef]

14

14. A. Hurtado, I. D. Henning, and M. J. Adams, “Different forms of wavelength polarization switching and bistability in a 1.55 microm vertical-cavity surface-emitting laser under orthogonally polarized optical injection,” Opt. Lett. 34(3), 365–367 (2009). [CrossRef] [PubMed]

]. Single mode operation has been attained in multiple transverse mode VCSELs [15

15. Y. Hong, P. S. Spencer, P. Rees, and K. A. Shore, “Optical injection dynamics of two-mode vertical cavity surface-emitting semiconductor lasers,” IEEE J. Quantum Electron. 38(3), 274–278 (2002). [CrossRef]

] under orthogonal optical injection. Also a wide variety of nonlinear dynamics has been recently theoretically [16

16. A. Homayounfar and M. J. Adams, “Locking bandwidth and birefringence effects for polarized optical injection in vertical-cavity surface-emitting lasers,” Opt. Commun. 269(1), 119–127 (2007). [CrossRef]

18

18. M. Sciamanna and K. Panajotov, “Route to polarization switching induced by optical injection in vertical cavity surface-emitting lasers,” Phys. Rev. A 73(2), 023811 (2006). [CrossRef]

] and experimentally [19

19. J. Buesa, I. Gatare, K. Panajotov, H. Thienpont, and M. Sciamanna, “Mapping of the dynamics induced by orthogonal optical injection in vertical-cavity surface-emitting lasers,” IEEE J. Quantum Electron. 42(2), 198–207 (2006). [CrossRef]

] [20

20. K. Panajotov, I. Gatare, A. Valle, H. Thienpont, and M. Sciamanna, ““Polarization- and Transverse-Mode Dynamics in Optically Injected and Gain-Switched Vertical-Cavity Surface-Emitting Lasers”, in IEEE J,” Quantum Electron. 45(11), 1473–1481 (2009). [CrossRef]

] reported in VCSELs subject to orthogonal injection. However, the effect of polarized injection on the stability analysis of optically-injected VCSELs has received little attention. An experimental stability map has been reported for an 845 nm-VCSEL subject to orthogonally-polarized optical injection, identifying the boundaries between regions of stable locking, unlocking, bistability and chaos [19

19. J. Buesa, I. Gatare, K. Panajotov, H. Thienpont, and M. Sciamanna, “Mapping of the dynamics induced by orthogonal optical injection in vertical-cavity surface-emitting lasers,” IEEE J. Quantum Electron. 42(2), 198–207 (2006). [CrossRef]

]. Recently, we have focused on the stability analysis of 1550 nm-VCSELs subject to different polarized optical injection and we have reported the first injection locking diagrams for these devices subject to parallel and orthogonal optical injection [21

21. A. Hurtado, I. D. Henning, and M. J. Adams, “Differences in the injection locking bandwidth in 1550nm-VCSELs subject to parallel and orthogonal optical injection”, IEEE 21st International Semiconductor Laser Conference, 2008, ISLC 2008, 87–88, Sorrento (Italy), 14–18 September 2008.

] as well as a first preliminary analysis of the nonlinear dynamics appearing under orthogonal optical injection [22

22. A. Quirce, A. Hurtado, A. Valle, L. Pesquera, and M. J. Adams, “Nonlinear Polarization Dynamics Induced by Orthogonal Optical Injection in 1550nm Vertical-Cavity Surface-Emitting Lasers”, 22nd Annual Meeting of the IEEE Photonics Society, PHO 2009, Belek-Antalya (Turkey), 4–9 October 2009.

].

2. Experimental Setup

Figure 1(a)
Fig. 1 (a) Experimental setup. (b) L-I curve and (c) spectrum of the VCSEL.
shows the all-fibre setup that has been developed to inject the light emitted by a tuneable laser (Master Laser, ML) into the 1550 nm-VCSEL (Slave Laser, SL). A variable optical attenuator is included after the ML to control the level of optical power of the externally injected signal. The output of the ML is then injected into the SL using an optical circulator. The polarization of the external signal is controlled using a fibre polarization controller. A 98/2 fibre directional coupler divides the optical path in two branches; the 2% branch is used to monitor the optical input power with a power meter whereas the 98% output is directly connected to the SL. Finally, the reflected output of the SL was analyzed by connecting different measurement equipment to the third port of the circulator. The stability of the reflected signal was analyzed optically with an Optical Spectrum Analyzer (OSA), and electrically with an Electrical Spectrum Analyzer (RF Analyzer) and also with an Oscilloscope for the measurement of time traces. A fast-photodiode (9 GHz bandwidth) was used to transform the optical signal to the electrical domain.

A commercially available quantum-well 1550 nm-VCSEL (Raycan) [25

25. M.-R. Park, “O.-Kyun Kwon, W.-S. Han, K.-H. Lee, S.-J. Park and B.-S. Yoo, “All-monolithic 1.55μm InAlGaAs/InP vertical cavity surface emitting lasers grown by metal organic chemical vapor deposition,” Jpn. J. Appl. Phys. 45, L8–L10 (2006). [CrossRef]

] was used in the experiments. Figure 1(b) plots the L-I curve of the device measured at a temperature of 298 K, showing a threshold current (Ith) of 1.64 mA. Figure 1(c) shows the optical spectrum of the VCSEL biased at 6.0 mA (also at 298 K). The two modes in Fig. 1(c) correspond to the two orthogonal polarizations of the fundamental transverse mode of the device. The lasing mode has “parallel” polarization and appears at the wavelength λ ׀׀ = 1535.3 nm whereas the subsidiary mode has “orthogonal” polarization and its wavelength (λ) is shifted 0.49 nm to the long-wavelength side of the lasing mode. This value for the frequency splitting between the two orthogonal polarizations is very large in comparison to those reported in short-wavelength devices [9

9. I. Gatare, J. Buesa, H. Thienpont, K. Panajotov, and M. Sciamanna, “Polarization switching bistability and dynamics in vertical-cavity surface-emitting laser under orthogonal optical injection,” Opt. Quantum Electron. 38(4-6), 429–443 (2006). [CrossRef]

]. Similar values of approximately 0.5 nm have been measured for various devices from the same manufacturer [10

10. K. H. Jeong, K. H. Kim, S. H. Lee, M. H. Lee, B. S. Yoo, and K. A. Shore, “Optical injection-induced polarization switching dynamics in 1.5 μm wavelength single-mode vertical-cavity surface-emitting lasers,” IEEE Photon. Technol. Lett. 20(10), 779–781 (2008). [CrossRef]

14

14. A. Hurtado, I. D. Henning, and M. J. Adams, “Different forms of wavelength polarization switching and bistability in a 1.55 microm vertical-cavity surface-emitting laser under orthogonally polarized optical injection,” Opt. Lett. 34(3), 365–367 (2009). [CrossRef] [PubMed]

]. This large value of frequency splitting allowed us to clearly distinguish both modes in the optical spectrum and also permitted to perform the stability analyses independently for both cases of polarized optical injection without including polarization selective devices in the setup. A Side Mode Suppression Ratio (SMSR) of 38.7 dB was measured for the orthogonal polarization. Spectra of this form were measured for all biases and no polarization switching was observed for any applied bias above threshold. For more information about the VCSEL’s structure see [25

25. M.-R. Park, “O.-Kyun Kwon, W.-S. Han, K.-H. Lee, S.-J. Park and B.-S. Yoo, “All-monolithic 1.55μm InAlGaAs/InP vertical cavity surface emitting lasers grown by metal organic chemical vapor deposition,” Jpn. J. Appl. Phys. 45, L8–L10 (2006). [CrossRef]

].

3. Experimental results

3.1 Parallel polarized optical injection

In studies of injection locking and nonlinear dynamics in semiconductor lasers, the polarization of the ML has been traditionally chosen to match that of the light emitted by the SL. Therefore, initially we have analyzed the case of parallel polarized injection into the parallel polarized lasing mode of the 1550 nm-VCSEL and Fig. 2(a)
Fig. 2 (a) Experimental stability map of the 1550nm-VCSEL subject to parallel polarized injection; Different regions are observed: SIL (stable injection locking), P1 (Period 1), P2 (period 2) and CH (chaos); (b-e) RF spectra measured for the situations indicated in the stability map corresponding to a frequency detuning of 2.2 GHz and various levels of input power: (b) 5.8 μW (chaos, CH), (c) 19.6 μW (Period 1, P1), (d) 58.31 μW (Period 2, P2) and (e) 122.5 μW (Period 1, P1). Applied bias current of 4 mA (IBias = 2.44 x Ith).
shows the experimental stability map for this case measured with the device biased with an applied current of 4 mA (IBias = 2.44 x Ith). The frequency of the externally injected signal, f, was swept around the resonant frequency of the parallel polarization mode, f||, the frequency detuning being f - f||. Regions of different behaviour were observed, including periodic dynamics such as limit cycle (period 1, P1) and period doubling (period 2, P2) and regions of chaos. The latter were observed for both positive and negative frequency detuning. It is important to note here that the measured stability map exhibits strong similarities with those reported in edge-emitting devices (see [24

24. S. Wieczorek, B. Krauskopf, T. B. Simpson, and D. Lenstra, “The dynamical complexity of optically injected semiconductor lasers,” Phys. Rep. 416(1-2), 1–128 (2005). [CrossRef]

] and references therein for a review). We believe that these similarities appear since we are matching the polarization of the external signal to that of the lasing mode. This conforms to the convention with edge-emitting lasers, where the polarizations of the ML and the SL are matched.

Figures 2(b-e) show the experimental RF spectra for the points marked in Fig. 2(a). Figure 2(b) shows a broadened RF spectrum characteristic of a chaotic dynamics situation. Figure 2(c) shows the RF spectrum signature of a limit cycle (Period 1, P1) dynamics; with a strong peak at 3.8 Ghz, frequency at which the VCSEL output oscillates. Figure 2(d) shows an RF spectrum indicating period doubling dynamics (Period 2, P2). Finally, Fig. 2(e) shows again a limit cycle (Period 1, P1) dynamics situation.

3.2 Orthogonal polarized optical injection

4. Conclusions

We report a first experimental study of the nonlinear dynamics of a 1550 nm single transverse mode VCSEL with a preferred polarization. We report, for the first time to our knowledge, the experimental stability maps of this device subject to parallel and orthogonal optical injection. We have identified boundaries between regions of different behaviour, including periodic dynamics (limit cycle and period doubling), chaos and polarization switching. For the case of parallel polarized injection the results exhibit strong similarities with those previously reported in edge-emitting devices. However, a different stability map with new qualitative features was measured when the VCSEL was subject to orthogonal injection into the orthogonal polarization mode of the device. We also report for the first time the RF spectrum and time domain experimental signatures of the rich variety of nonlinear dynamics observed for the 1550nm-VCSEL subject to different polarized optical injection.

Acknowledgements

This work has been funded in part by the European Commission under the Programme FP7 Marie Curie Intra-European Fellowships Grant PIEF-GA-2008-219682 and by the Ministerio de Ciencia e Innovación, Spain, Project TEC2009-14581-C02-02.

References and links

1.

F. Koyama, “Recent advances of VCSEL photonics,” IEEE J. Lightwave. Technol. 24(12), 4502–4513 (2006). [CrossRef]

2.

R. Lang, “Injection locking properties of semiconductor laser,” IEEE J. Quantum Electron. 18(6), 976–983 (1982). [CrossRef]

3.

T. B. Simpson, J. M. Liu, and A. Gavrielides, “Bandwidth enhancement and broadband noise reduction in injection-locked semiconductor lasers,” IEEE Photon. Technol. Lett. 7(7), 709–711 (1995). [CrossRef]

4.

X. Meng, T. Chau, and M. C. Wu, “Experimental demonstration of modulation bandwidth enhancement in distributed feedback lasers with external light injection,” Electron. Lett. 34(21), 2031–2032 (1998). [CrossRef]

5.

C.-H. Hang, L. Chrostowski, and C. J. Chang-Hasnain, “Injection locking of VCSELs,” IEEE J. Sel. Top. Quantum Electron. 9(5), 1386–1393 (2003). [CrossRef]

6.

L. Chrostowski, B. Faraji, W. Hofmann, M.-C. Amann, S. Wieczorek, and W. W. Chow, “40 GHz bandwidth and 64 GHz resonance frequency in injection-locked 1.55 μm VCSELs,” IEEE J. Sel. Top. Quantum Electron. 13(5), 1200–1208 (2007). [CrossRef]

7.

Q. Gu, W. Hoffmann, M.-C. Amann, and L. Chrostowski, “Optically injection-locked VCSEL as a duplex transmitter/receiver,” IEEE Photon. Technol. Lett. 20(7), 463–465 (2008). [CrossRef]

8.

Z. G. Pan, S. Jiang, M. Dagenais, R. A. Morgan, K. Kojima, M. T. Asom, R. E. Leibenguth, G. D. Guth, and M. W. Focht, “Optical injection induced polarization bistability in vertical-cavity surface-emitting lasers,” Appl. Phys. Lett. 63(22), 2999–3001 (1993). [CrossRef]

9.

I. Gatare, J. Buesa, H. Thienpont, K. Panajotov, and M. Sciamanna, “Polarization switching bistability and dynamics in vertical-cavity surface-emitting laser under orthogonal optical injection,” Opt. Quantum Electron. 38(4-6), 429–443 (2006). [CrossRef]

10.

K. H. Jeong, K. H. Kim, S. H. Lee, M. H. Lee, B. S. Yoo, and K. A. Shore, “Optical injection-induced polarization switching dynamics in 1.5 μm wavelength single-mode vertical-cavity surface-emitting lasers,” IEEE Photon. Technol. Lett. 20(10), 779–781 (2008). [CrossRef]

11.

A. Hurtado, I. D. Henning, and M. J. Adams, “Two-wavelength switching with a 1550nm VCSEL under single orthogonal optical injection,” IEEE J. Sel. Top. Quantum Electron. 14(3), 911–917 (2008). [CrossRef]

12.

A. Quirce, A. Valle, and L. Pesquera, “Very wide hysteresis cycles in 1550 nm-VCSELs subject to orthogonal optical injection,” IEEE Photon. Technol. Lett. 21(17), 1193–1195 (2009). [CrossRef]

13.

A. Valle, M. Gomez-Molina, and L. Pesquera, “Polarization bistability in 1550nm wavelength single-mode vertical-cavity surface-emitting lasers subject to orthogonal optical injection,” IEEE J. Sel. Top. Quantum Electron. 14(3), 895–902 (2008). [CrossRef]

14.

A. Hurtado, I. D. Henning, and M. J. Adams, “Different forms of wavelength polarization switching and bistability in a 1.55 microm vertical-cavity surface-emitting laser under orthogonally polarized optical injection,” Opt. Lett. 34(3), 365–367 (2009). [CrossRef] [PubMed]

15.

Y. Hong, P. S. Spencer, P. Rees, and K. A. Shore, “Optical injection dynamics of two-mode vertical cavity surface-emitting semiconductor lasers,” IEEE J. Quantum Electron. 38(3), 274–278 (2002). [CrossRef]

16.

A. Homayounfar and M. J. Adams, “Locking bandwidth and birefringence effects for polarized optical injection in vertical-cavity surface-emitting lasers,” Opt. Commun. 269(1), 119–127 (2007). [CrossRef]

17.

I. Gatare, M. Sciamanna, M. Nizette, H. Thienpont, and K. Panajotov, “Mapping of two-polarization-mode dynamics in vertical-cavity surface-emitting lasers with optical injection,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 80(2), 026218 (2009). [CrossRef] [PubMed]

18.

M. Sciamanna and K. Panajotov, “Route to polarization switching induced by optical injection in vertical cavity surface-emitting lasers,” Phys. Rev. A 73(2), 023811 (2006). [CrossRef]

19.

J. Buesa, I. Gatare, K. Panajotov, H. Thienpont, and M. Sciamanna, “Mapping of the dynamics induced by orthogonal optical injection in vertical-cavity surface-emitting lasers,” IEEE J. Quantum Electron. 42(2), 198–207 (2006). [CrossRef]

20.

K. Panajotov, I. Gatare, A. Valle, H. Thienpont, and M. Sciamanna, ““Polarization- and Transverse-Mode Dynamics in Optically Injected and Gain-Switched Vertical-Cavity Surface-Emitting Lasers”, in IEEE J,” Quantum Electron. 45(11), 1473–1481 (2009). [CrossRef]

21.

A. Hurtado, I. D. Henning, and M. J. Adams, “Differences in the injection locking bandwidth in 1550nm-VCSELs subject to parallel and orthogonal optical injection”, IEEE 21st International Semiconductor Laser Conference, 2008, ISLC 2008, 87–88, Sorrento (Italy), 14–18 September 2008.

22.

A. Quirce, A. Hurtado, A. Valle, L. Pesquera, and M. J. Adams, “Nonlinear Polarization Dynamics Induced by Orthogonal Optical Injection in 1550nm Vertical-Cavity Surface-Emitting Lasers”, 22nd Annual Meeting of the IEEE Photonics Society, PHO 2009, Belek-Antalya (Turkey), 4–9 October 2009.

23.

F. Mogensen, H. Olesen, and G. Jacobsen, “Locking conditions and stability properties for a semiconductor laser with external light injection,” IEEE J. Quantum Electron. 21(7), 784–793 (1985). [CrossRef]

24.

S. Wieczorek, B. Krauskopf, T. B. Simpson, and D. Lenstra, “The dynamical complexity of optically injected semiconductor lasers,” Phys. Rep. 416(1-2), 1–128 (2005). [CrossRef]

25.

M.-R. Park, “O.-Kyun Kwon, W.-S. Han, K.-H. Lee, S.-J. Park and B.-S. Yoo, “All-monolithic 1.55μm InAlGaAs/InP vertical cavity surface emitting lasers grown by metal organic chemical vapor deposition,” Jpn. J. Appl. Phys. 45, L8–L10 (2006). [CrossRef]

OCIS Codes
(190.3100) Nonlinear optics : Instabilities and chaos
(230.5440) Optical devices : Polarization-selective devices
(130.4815) Integrated optics : Optical switching devices
(140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 21, 2010
Revised Manuscript: March 4, 2010
Manuscript Accepted: March 4, 2010
Published: April 21, 2010

Citation
Antonio Hurtado, Ana Quirce, Angel Valle, Luis Pesquera, and Michael J. Adams, "Nonlinear dynamics induced by parallel and orthogonal optical injection in 1550 nm Vertical-Cavity Surface-Emitting Lasers (VCSELs)," Opt. Express 18, 9423-9428 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-9-9423


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References

  1. F. Koyama, “Recent advances of VCSEL photonics,” IEEE J. Lightwave. Technol. 24(12), 4502–4513 (2006). [CrossRef]
  2. R. Lang, “Injection locking properties of semiconductor laser,” IEEE J. Quantum Electron. 18(6), 976–983 (1982). [CrossRef]
  3. T. B. Simpson, J. M. Liu, and A. Gavrielides, “Bandwidth enhancement and broadband noise reduction in injection-locked semiconductor lasers,” IEEE Photon. Technol. Lett. 7(7), 709–711 (1995). [CrossRef]
  4. X. Meng, T. Chau, and M. C. Wu, “Experimental demonstration of modulation bandwidth enhancement in distributed feedback lasers with external light injection,” Electron. Lett. 34(21), 2031–2032 (1998). [CrossRef]
  5. C.-H. Hang, L. Chrostowski, and C. J. Chang-Hasnain, “Injection locking of VCSELs,” IEEE J. Sel. Top. Quantum Electron. 9(5), 1386–1393 (2003). [CrossRef]
  6. L. Chrostowski, B. Faraji, W. Hofmann, M.-C. Amann, S. Wieczorek, and W. W. Chow, “40 GHz bandwidth and 64 GHz resonance frequency in injection-locked 1.55 μm VCSELs,” IEEE J. Sel. Top. Quantum Electron. 13(5), 1200–1208 (2007). [CrossRef]
  7. Q. Gu, W. Hoffmann, M.-C. Amann, and L. Chrostowski, “Optically injection-locked VCSEL as a duplex transmitter/receiver,” IEEE Photon. Technol. Lett. 20(7), 463–465 (2008). [CrossRef]
  8. Z. G. Pan, S. Jiang, M. Dagenais, R. A. Morgan, K. Kojima, M. T. Asom, R. E. Leibenguth, G. D. Guth, and M. W. Focht, “Optical injection induced polarization bistability in vertical-cavity surface-emitting lasers,” Appl. Phys. Lett. 63(22), 2999–3001 (1993). [CrossRef]
  9. I. Gatare, J. Buesa, H. Thienpont, K. Panajotov, and M. Sciamanna, “Polarization switching bistability and dynamics in vertical-cavity surface-emitting laser under orthogonal optical injection,” Opt. Quantum Electron. 38(4-6), 429–443 (2006). [CrossRef]
  10. K. H. Jeong, K. H. Kim, S. H. Lee, M. H. Lee, B. S. Yoo, and K. A. Shore, “Optical injection-induced polarization switching dynamics in 1.5 μm wavelength single-mode vertical-cavity surface-emitting lasers,” IEEE Photon. Technol. Lett. 20(10), 779–781 (2008). [CrossRef]
  11. A. Hurtado, I. D. Henning, and M. J. Adams, “Two-wavelength switching with a 1550nm VCSEL under single orthogonal optical injection,” IEEE J. Sel. Top. Quantum Electron. 14(3), 911–917 (2008). [CrossRef]
  12. A. Quirce, A. Valle, and L. Pesquera, “Very wide hysteresis cycles in 1550 nm-VCSELs subject to orthogonal optical injection,” IEEE Photon. Technol. Lett. 21(17), 1193–1195 (2009). [CrossRef]
  13. A. Valle, M. Gomez-Molina, and L. Pesquera, “Polarization bistability in 1550nm wavelength single-mode vertical-cavity surface-emitting lasers subject to orthogonal optical injection,” IEEE J. Sel. Top. Quantum Electron. 14(3), 895–902 (2008). [CrossRef]
  14. A. Hurtado, I. D. Henning, and M. J. Adams, “Different forms of wavelength polarization switching and bistability in a 1.55 microm vertical-cavity surface-emitting laser under orthogonally polarized optical injection,” Opt. Lett. 34(3), 365–367 (2009). [CrossRef] [PubMed]
  15. Y. Hong, P. S. Spencer, P. Rees, and K. A. Shore, “Optical injection dynamics of two-mode vertical cavity surface-emitting semiconductor lasers,” IEEE J. Quantum Electron. 38(3), 274–278 (2002). [CrossRef]
  16. A. Homayounfar and M. J. Adams, “Locking bandwidth and birefringence effects for polarized optical injection in vertical-cavity surface-emitting lasers,” Opt. Commun. 269(1), 119–127 (2007). [CrossRef]
  17. I. Gatare, M. Sciamanna, M. Nizette, H. Thienpont, and K. Panajotov, “Mapping of two-polarization-mode dynamics in vertical-cavity surface-emitting lasers with optical injection,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 80(2), 026218 (2009). [CrossRef] [PubMed]
  18. M. Sciamanna and K. Panajotov, “Route to polarization switching induced by optical injection in vertical cavity surface-emitting lasers,” Phys. Rev. A 73(2), 023811 (2006). [CrossRef]
  19. J. Buesa, I. Gatare, K. Panajotov, H. Thienpont, and M. Sciamanna, “Mapping of the dynamics induced by orthogonal optical injection in vertical-cavity surface-emitting lasers,” IEEE J. Quantum Electron. 42(2), 198–207 (2006). [CrossRef]
  20. K. Panajotov, I. Gatare, A. Valle, H. Thienpont, and M. Sciamanna, ““Polarization- and Transverse-Mode Dynamics in Optically Injected and Gain-Switched Vertical-Cavity Surface-Emitting Lasers”, in IEEE J,” Quantum Electron. 45(11), 1473–1481 (2009). [CrossRef]
  21. A. Hurtado, I. D. Henning, and M. J. Adams, “Differences in the injection locking bandwidth in 1550nm-VCSELs subject to parallel and orthogonal optical injection”, IEEE 21st International Semiconductor Laser Conference, 2008, ISLC 2008, 87–88, Sorrento (Italy), 14–18 September 2008.
  22. A. Quirce, A. Hurtado, A. Valle, L. Pesquera, and M. J. Adams, “Nonlinear Polarization Dynamics Induced by Orthogonal Optical Injection in 1550nm Vertical-Cavity Surface-Emitting Lasers”, 22nd Annual Meeting of the IEEE Photonics Society, PHO 2009, Belek-Antalya (Turkey), 4–9 October 2009.
  23. F. Mogensen, H. Olesen, and G. Jacobsen, “Locking conditions and stability properties for a semiconductor laser with external light injection,” IEEE J. Quantum Electron. 21(7), 784–793 (1985). [CrossRef]
  24. S. Wieczorek, B. Krauskopf, T. B. Simpson, and D. Lenstra, “The dynamical complexity of optically injected semiconductor lasers,” Phys. Rep. 416(1-2), 1–128 (2005). [CrossRef]
  25. M.-R. Park, “O.-Kyun Kwon, W.-S. Han, K.-H. Lee, S.-J. Park and B.-S. Yoo, “All-monolithic 1.55μm InAlGaAs/InP vertical cavity surface emitting lasers grown by metal organic chemical vapor deposition,” Jpn. J. Appl. Phys. 45, L8–L10 (2006). [CrossRef]

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