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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4067–4075

Saturated signal-to-noise ratio of up-stream WRC-FPLD transmitter injection-locked by down-stream data-erased ASE carrier

Yi-Hung Lin, Chun-Ju Lin, Gong-Cheng Lin, and Gong-Ru Lin  »View Author Affiliations


Optics Express, Vol. 19, Issue 5, pp. 4067-4075 (2011)
http://dx.doi.org/10.1364/OE.19.004067


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Abstract

By controlling the extinction ratio (ER) and overshooting level of the down-stream amplified spontaneous emission (ASE) with a gain-saturation semiconductor optical amplifier (SOA), the down-stream data-erased ASE carrier is re-encoded in an injection-locked weak-resonant-cavity Fabry-Perot laser diode (WRC-FPLD) up-stream transmitter to implement all-ASE based bi-directional WDM-PON system. The effect of ER on the up-stream transmission performance of the down-stream data-erased ASE injection-locked WRC-FPLD is elucidated via the gain-saturation model. It is observed that the communication criterion with a bit-error-rate of <10−9 at 2.488 Gbit/s can be met only when ER is reduced to <3 dB and overshooting level <-5 dB. The up-stream WRC-FPLD re-encoded ASE data-stream could improve its signal-to-noise ratio (SNR) to 6.4 dB by minimizing the ER and overshooting level of the down-stream data-erased ASE to 2.4 dB and −7.8 dB, respectively, with the gain-saturated SOA. The SNR can also be improved with higher power injecting into the up-stream transmitter until saturation occurs and the optimal window of the ASE injection power is between −7 and −3 dBm.

© 2011 OSA

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(140.3520) Lasers and laser optics : Lasers, injection-locked
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(060.1155) Fiber optics and optical communications : All-optical networks

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 30, 2010
Manuscript Accepted: October 10, 2010
Published: February 16, 2011

Citation
Yi-Hung Lin, Chun-Ju Lin, Gong-Cheng Lin, and Gong-Ru Lin, "Saturated signal-to-noise ratio of up-stream WRC-FPLD transmitter injection-locked by down-stream data-erased ASE carrier," Opt. Express 19, 4067-4075 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-5-4067


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