SOA-based polarity-preserving all-optical wavelength conversion at 80Gbit/s: Wide conversion range, well dynamic characteristics and polarization insensitive
✍ Scribed by Shuangyi Yan; Jian-Guo Zhang; Wei Zhao
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 496 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
This letter presents the effective design of a tunable 80 Gbit/s wavelength converter with a simple configuration consisting of a single semiconductor optical amplifier (SOA) and an optical bandpass filter (OBPF). Based on both cross‐gain and cross‐phase modulation in SOA, the polarity‐preserved, ultrafast wavelength conversion is achieved by appropriately filtering the blue‐chirped spectral component of a probe light. Moreover, the experiments are carried out to investigate into the wavelength tunability and the maximum tuning range of the designed wavelength converter. Our results show that a wide wavelength conversion range of nearly 35 nm is achieved with 21‐nm downconversion and 14‐nm upconversion, which is substantially limited by the operation wavelength ranges of a tunable OBPF and a tunable continuous‐wave laser in our experiment. We also exploited the dynamics characteristics of the wavelength converter with variable input powers and different injection current of SOA. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2392–2399, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23695