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Applied Optics

Applied Optics


  • Vol. 42, Iss. 24 — Aug. 20, 2003
  • pp: 4847–4854

Multifunctional gratings for surface-emitting lasers: design and implementation

Peter Modh, Johan Backlund, Jörgen Bengtsson, Anders Larsson, Naoyuki Shimada, and Toshiaki Suhara  »View Author Affiliations

Applied Optics, Vol. 42, Issue 24, pp. 4847-4854 (2003)

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We experimentally demonstrate the use of two different multifunctional grating couplers in surface-emitting lasers for improved beam quality and advanced beam profiles. The lasers used for the demonstration are grating-based unstable resonator lasers, each with a grating coupler for surface emission and beam shaping. The new design method, described in detail, allows for simultaneous optimization of arbitrary feedback and outcoupling characteristics of the grating coupler. The first coupler is designed to reduce feedback to the resonator that would otherwise disturb the operation of the laser and lower the beam quality and to produce an output beam focused to four spots. The second coupler is designed to provide the feedback needed to support the unstable resonator, eliminating one feedback grating, and simultaneously focus the output beam to a single spot. As far as we know, this is the first time such multifunctional couplers are used in grating-coupled surface-emitting lasers. The couplers provide near-diffraction-limited spots that are a considerable improvement compared with previous lasers with no feedback control in the couplers.

© 2003 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(130.5990) Integrated optics : Semiconductors
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.5300) Optoelectronics : Photonic integrated circuits

Original Manuscript: January 13, 2003
Revised Manuscript: May 12, 2003
Published: August 20, 2003

Peter Modh, Johan Backlund, Jörgen Bengtsson, Anders Larsson, Naoyuki Shimada, and Toshiaki Suhara, "Multifunctional gratings for surface-emitting lasers: design and implementation," Appl. Opt. 42, 4847-4854 (2003)

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  1. G. A. Evans, J. M. Hammer, eds. Surface Emitting Semiconductor Lasers and Arrays (Academic, New York, 1993).
  2. J.-J. He, B. Lamontagne, A. Delage, L. Erickson, M. Davies, E. S. Koteles, “Monolithic integrated wavelength demultiplexer based on a waveguide Rowland circle grating in InGaAsP/InP,” IEEE J. Lightwave Technol. 16, 631–638 (1998). [CrossRef]
  3. A. G. Larsson, N. Eriksson, S. Kristjansson, P. Modh, M. Uemukai, T. Suhara, H. Nishihara, “Grating coupled surface emitters: integrated lasers, amplifiers, and beam shaping outcouplers,” in Testing, Packaging, Reliability, and Applications of Semiconductor Lasers IV, M. Fallahi, K. J. Linden, S. Wang, eds., Proc. SPIE3626, 190–201 (1999). [CrossRef]
  4. S. Kristjánsson, N. Eriksson, S. J. Sheard, A. Larsson, “Circular grating-coupled surface-emitter with high-quality focused output beam,” IEEE Photon. Technol. Lett. 11, 497–499 (1999). [CrossRef]
  5. N. Eriksson, J. Bengtsson, M. Li, P. Modh, A. Larsson, “Surface-emitting unstable-resonator lasers with integrated diffractive beam-forming elements,” IEEE Photon. Technol. Lett. 9, 1570–1572 (1997). [CrossRef]
  6. Y. Feng, M. Li, P. Chow-Chong, P. Marshall, S. Eskin, M. Davies, “Grating-assisted surface-emitting laser transmitter with image-forming capability,” IEEE Photon. Technol. Lett. 10, 1682–1684 (1998). [CrossRef]
  7. N. Eriksson, P. Modh, A. Larsson, “Grating-coupled surface-emitting laser with a hyperbolic unstable resonator producing a stable focused output beam,” IEEE Photon. Technol. Lett. 11, 1366–1368 (1999). [CrossRef]
  8. M. Uemukai, M. Miyata, N. Shimada, T. Suhara, H. Nishihara, N. Eriksson, P. Modh, A. Larsson, “Monolithically integrated master oscillator power amplifier with grating coupler for collimated output beam,” Jpn. J. Appl. Phys. 39, 1503–1507 (2000). [CrossRef]
  9. S. Kristjánsson, N. Eriksson, P. Modh, A. Larsson, “Surface-emitting tapered unstable resonator laser with integrated focusing grating coupler,” IEEE Photon. Technol. Lett. 12, 1319–1321 (2000). [CrossRef]
  10. P. Modh, N. Eriksson, S. Kristjansson, J. Bengtsson, A. Larsson, “Hyperbolic unstable-resonator laser with a monolithically integrated spot-array grating-outcoupler,” in Lasers and Electro-Optics Society 2000 Annual Meeting, LEOS 2000, Thirteenth Annual Meeting (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 2000), 2, 868–869. [CrossRef]
  11. M. Li, J. Bengtsson, M. Hagberg, A. Larsson, T. Suhara, “Off-plane computer-generated waveguide hologram,” IEEE J. Sel. Top. Quantum Electron. 2, 226–235 (1996). [CrossRef]
  12. P. Modh, J. Backlund, N. Eriksson, J. Bengtsson, S. Kristjánsson, A. Larsson, “Effects of feedback from collimating, focusing, and spot-array generating outcoupler gratings in surface-emitting semiconductor lasers,” Opt. Lett. 27, 574–576 (2002). [CrossRef]
  13. P. Modh, J. Backlund, J. Bengtsson, N. Shimada, T. Suhara, A. Larsson, “Grating-coupled surface-emitting semiconductor laser with multifunctional grating for mode selective feedback and beam-shaping,” IEEE Photon. Technol. Lett. (to be published.)
  14. J. Backlund, J. Bengtsson, C.-F. Carlström, A. Larsson, “Incoupling waveguide holograms for simultaneous focusing into multiple arbitrary positions,” Appl. Opt. 38, 5738–5746 (1999). [CrossRef]
  15. N. Eriksson, P. Modh, A. Larsson, “Design optimization of a hyperbolic unstable-resonator semiconductor laser,” IEEE J. Quantum Electron. 37, 1095–1102 (2001). [CrossRef]
  16. N. Eriksson, A. Larsson, M. Uemukai, T. Suhara, “Parabolic-confocal unstable-resonator semiconductor lasers—modeling and experiments,” IEEE J. Quantum Electron. 34, 858–868 (1998). [CrossRef]

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