Performance enhancement scheme for RSOA-based WDM-PONS by using a single Fabry-Perot etalon
✍ Scribed by Chun-Liang Yang; Ting-Lin Hsieh; Shu-Chuan Lin; Gerd Keiser; San-Liang Lee
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 661 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A scheme for simultaneous extinction ratio enhancement, optical frequency stabilization, and wavelength reuse is proposed for reflective semiconductor optical amplifier‐based wavelength‐division‐multiplexed passive optical networks to stabilize the optical channel frequency and enhance bidirectional transmission.This is achieved by simply employing a single Fabry‐Perot etalon at the optical line terminal rather than having one at each optical network unit. Compared with the remodulation scheme that uses a 10‐Gb/s optical signal with a 3‐dB extinction ratio as a downstream optical signal and a seed light, our scheme shows improvements in power penalties greater than 1.8 dB and 1.4 dB for 10‐Gb/s downstream and 1.25‐Gb/s upstream signals, respectively, after transmission of 25 km at a bit‐error‐rate = 10^−9^. Moreover, a power penalty of only 0.5‐dB is observed in comparison to the two 1.25‐Gb/s upstream bit‐error‐rate results based on using a continuous‐wave seed light and a data‐erased seed light. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26178