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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 3 — Jan. 30, 2012
  • pp: 2277–2289

Travelling wave analysis on high-speed performance of Q-modulated distributed feedback laser

Jiankun Zhi, Hongli Zhu, Dekun Liu, Lei Wang, and Jian-Jun He  »View Author Affiliations


Optics Express, Vol. 20, Issue 3, pp. 2277-2289 (2012)
http://dx.doi.org/10.1364/OE.20.002277


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Abstract

The structure of a Q-modulated distributed feedback laser is designed and simulated. A large reflectivity modulation of the rear reflector is achieved by using an anti-resonant cavity formed by two deep trenches with the one between the modulator and phase section filled by a high index dielectric material. The travelling wave model is presented to analyze the high speed performance of the laser. Due to the effect of the wave propagation in the structure, the modulation extinction ratio decreases with increasing cavity length. It is shown that 40Gb/s RZ signal modulation can be achieved with an extinction ratio of 7dB and 10dB, respectively, for a cavity length of 500μm and 300μm.

© 2012 OSA

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.4110) Optoelectronics : Modulators

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 9, 2011
Revised Manuscript: January 3, 2012
Manuscript Accepted: January 8, 2012
Published: January 17, 2012

Citation
Jiankun Zhi, Hongli Zhu, Dekun Liu, Lei Wang, and Jian-Jun He, "Travelling wave analysis on high-speed performance of Q-modulated distributed feedback laser," Opt. Express 20, 2277-2289 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-3-2277


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