Four-wave mixing of strongly injection-locked semiconductor lasers for all-optical frequency conversion

Sheng Kwang Hwang, Shin Hung Tsai

研究成果: Conference contribution

摘要

Frequency conversion is considered as a key functionality for wavelength division multiplexing systems, which converts an incoming optical carrier of one frequency to an outgoing optical carrier of another frequency while preserving the quality of carried data. The all-optical approach is promising for such a purpose because not only the system complexity and power consumption of frequency converters are greatly reduced but also the flexibility and reconfigurability are highly improved. Four-wave mixing of solitary semiconductor lasers has been proposed to achieve all-optical frequency conversion. Although the conversion efficiency is relatively high, however, the conversion bandwidth is small, limiting the conversion range, and the efficiency flatness is poor, distorting the data signal. In this study, we propose to use four-wave mixing of injection-locked semiconductor lasers instead. When a semiconductor laser is subject to a strong optical injection, it can enter into stable locking dynamics before undergoing Hopf bifurcation. An incoming optical carrier of one frequency perturbs the injection-locked laser, generating an outgoing optical carrier of another frequency through four-wave mixing. Tens to hundreds of gigahertz of frequency conversion can be achieved, increasing the conversion bandwidth by 3 folds. The conversion efficiency varies within 5 dB over the enhanced bandwidth, improving the efficiency flatness by at least 10 dB. Greatly improved eye-diagrams and bit-error ratios are thus obtained. The input power dynamic range of the incoming optical carrier is greatly enhanced, increasing the flexibility of the proposed system.

原文English
主出版物標題Photonic Fiber and Crystal Devices
主出版物子標題Advances in Materials and Innovations in Device Applications IV
DOIs
出版狀態Published - 2010
事件Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV - San Diego, CA, United States
持續時間: 2010 8月 12010 8月 2

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
7781
ISSN(列印)0277-786X

Other

OtherPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV
國家/地區United States
城市San Diego, CA
期間10-08-0110-08-02

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 應用數學
  • 電氣與電子工程
  • 電腦科學應用

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