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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17739–17746

200-GHz and 50-GHz AWG channelized linewidth dependent transmission of weak-resonant-cavity FPLD injection-locked by spectrally sliced ASE

Gong-Ru Lin, Tzu-Kang Cheng, Yu-Chieh Chi, Gong-Cheng Lin, Hai-Lin Wang, and Yi-Hong Lin  »View Author Affiliations


Optics Express, Vol. 17, Issue 20, pp. 17739-17746 (2009)
http://dx.doi.org/10.1364/OE.17.017739


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Abstract

In a weak-resonant-cavity Fabry-Perot laser diode (WRC-FPLD) based DWDM-PON system with an array-waveguide-grating (AWG) channelized amplified spontaneous emission (ASE) source located at remote node, we study the effect of AWG filter bandwidth on the transmission performances of the 1.25-Gbit/s directly modulated WRC-FPLD transmitter under the AWG channelized ASE injection-locking. With AWG filters of two different channel spacings at 50 and 200 GHz, several characteristic parameters such as interfered reflection, relatively intensity noise, crosstalk reduction, side-mode-suppressing ratio and power penalty of BER effect of the WRC-FPLD transmitted data are compared. The 200-GHz AWG filtered ASE injection minimizes the noises of WRC-FPLD based ONU transmitter, improving the power penalty of upstream data by −1.6 dB at BER of 10−12. In contrast, the 50-GHz AWG channelized ASE injection fails to promote better BER but increases the power penalty by + 1.5 dB under back-to-back transmission. A theoretical modeling elucidates that the BER degradation up to 4 orders of magnitude between two injection cases is mainly attributed to the reduction on ASE injection linewidth, since which concurrently degrades the signal-to-noise and extinction ratios of the transmitted data stream.

© 2009 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(140.3520) Lasers and laser optics : Lasers, injection-locked
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.5980) Optoelectronics : Semiconductor optical amplifiers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 22, 2009
Revised Manuscript: August 7, 2009
Manuscript Accepted: August 11, 2009
Published: September 18, 2009

Citation
Gong-Ru Lin, Tzu-Kang Cheng, Yu-Chieh Chi, Gong-Cheng Lin, Hai-Lin Wang, and Yi-Hong Lin, "200-GHz and 50-GHz AWG channelized linewidth dependent transmission of weak-resonant-cavity FPLD injection-locked by spectrally sliced ASE," Opt. Express 17, 17739-17746 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-20-17739


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