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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 13 — Jun. 18, 2012
  • pp: 14109–14116

Real-time wavelength and bandwidth-independent optical integrator based on modal dispersion

Zhongwei Tan, Chao Wang, Eric D. Diebold, Nick K. Hon, and Bahram Jalali  »View Author Affiliations


Optics Express, Vol. 20, Issue 13, pp. 14109-14116 (2012)
http://dx.doi.org/10.1364/OE.20.014109


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Abstract

High-throughput real-time optical integrators are of great importance for applications that require ultrafast optical information processing, such as real-time phase reconstruction of ultrashort optical pulses. In many of these applications, integration of wide optical bandwidth signals is required. Unfortunately, conventional all-optical integrators based on passive devices are usually sensitive to the wavelength and bandwidth of the optical carrier. Here, we propose and demonstrate a passive all-optical intensity integrator whose operation is independent of the optical signal wavelength and bandwidth. The integrator is implemented based on modal dispersion in a multimode waveguide. By controlling the launch conditions of the input beam, the device produces a rectangular temporal impulse response. Consequently, a temporal intensity integration of an arbitrary optical waveform input is performed within the rectangular time window. The key advantage of this device is that the integration operation can be performed independent of the input signal wavelength and optical carrier bandwidth. This is preferred in many applications where optical signals of different wavelengths are involved. Moreover, thanks to the use of a relatively short length of multimode waveguide, lower system latency is achieved compared to the systems using long dispersive fibers. To illustrate the versatility of the optical integrator, we demonstrate temporal intensity integration of optical waveforms with different wavelengths and optical carrier bandwidths. Finally, we use this device to perform high-throughput, single-shot, real-time optical phase reconstruction of phase-modulated signals at telecommunications bit rates.

© 2012 OSA

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(200.4740) Optics in computing : Optical processing
(060.5625) Fiber optics and optical communications : Radio frequency photonics
(320.7085) Ultrafast optics : Ultrafast information processing

ToC Category:
Ultrafast Optics

History
Original Manuscript: April 16, 2012
Revised Manuscript: May 29, 2012
Manuscript Accepted: May 31, 2012
Published: June 11, 2012

Citation
Zhongwei Tan, Chao Wang, Eric D. Diebold, Nick K. Hon, and Bahram Jalali, "Real-time wavelength and bandwidth-independent optical integrator based on modal dispersion," Opt. Express 20, 14109-14116 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-13-14109


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References

  1. M. Ferrera, Y. Park, L. Razzari, B. E. Little, S. T. Chu, R. Morandotti, D. J. Moss, and J. Azaña, “On-chip CMOS-compatible all-optical integrator,” Nat. Commun.1(3), 29 (2010). [CrossRef] [PubMed]
  2. M. H. Asghari and J. Azaña, “Photonic integrator-based optical memory unit,” IEEE Photon. Technol. Lett.23(4), 209–211 (2011). [CrossRef]
  3. R. Slavík, Y. Park, N. Ayotte, S. Doucet, T. J. Ahn, S. LaRochelle, and J. Azaña, “Photonic temporal integrator for all-optical computing,” Opt. Express16(22), 18202–18214 (2008). [CrossRef] [PubMed]
  4. J. Azaña, “Ultrafast analog all-optical signal processors based on fiber-grating devices,” IEEE Photonics J.2(3), 359–386 (2010). [CrossRef]
  5. Y. Park and J. Azaña, “Ultrafast photonic intensity integrator,” Opt. Lett.34(8), 1156–1158 (2009). [CrossRef] [PubMed]
  6. M. H. Asghari, Y. Park, and J. Azaña, “Photonic intensity integrator with combined high processing speed and long operation time window,” in CLEO:2011—Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper CThI2.
  7. E. D. Diebold, N. K. Hon, Z. Tan, J. Chou, T. Sienicki, C. Wang, and B. Jalali, “Giant tunable optical dispersion using chromo-modal excitation of a multimode waveguide,” Opt. Express19(24), 23809–23817 (2011). [CrossRef] [PubMed]
  8. A. Shah, C. J. Hsu, A. Tarighat, A. H. Sayed, and B. Jalali, “Coherent optical MIMO (COMIMO),” J. Lightwave Technol.23(8), 2410–2419 (2005). [CrossRef]
  9. H. R. Stuart, “Dispersive multiplexing in multimode optical fiber,” Science289(5477), 281–283 (2000). [CrossRef] [PubMed]
  10. S. Murshid, B. Grossman, and P. Narakorn, “Spatial domain multiplexing: A new dimension in fiber optic multiplexing,” Opt. Laser Technol.40(8), 1030–1036 (2008). [CrossRef]
  11. U. Levy, H. Kobrinsky, and A. Friesem, “Angular multiplexing for multichannel communication in a single fiber,” IEEE J. Quantum Electron.17(11), 2215–2224 (1981). [CrossRef]
  12. R. Ryf, S. Randel, A. H. Gnauck, C. Bolle, R. Essiambre, P. Winzer, D. W. Peckham, A. McCurdy, and R. Lingle, “Space-division multiplexing over 10 km of three-mode fiber using coherent 6 × 6 MIMO processing,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2011), paper PDPB10.
  13. S. Liang, C. Zhang, W. Lin, L. Li, C. Li, X. Feng, and B. Lin, “Fiber-optic intrinsic distributed acoustic emission sensor for large structure health monitoring,” Opt. Lett.34(12), 1858–1860 (2009). [CrossRef] [PubMed]
  14. A. Pasquazi, M. Peccianti, Y. Park, B. E. Little, S. T. Chu, R. Morandotti, J. Azaña, and D. J. Moss, “Sub-picosecond phase-sensitive optical pulse characterization on a chip,” Nat. Photonics5(10), 618–623 (2011). [CrossRef]
  15. F. Li, Y. Park, and J. Azaña, “Single-shot real-time frequency chirp characterization of telecommunication optical signals based on balanced temporal optical differentiation,” Opt. Lett.34(18), 2742–2744 (2009). [CrossRef] [PubMed]

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