Conversion between optical ASK and optical FSK using nonlinear dynamics of semiconductor lasers

Sheng Kwang Hwang, Sze Chun Chan, Shiuan Li Lin, Cheng Hao Chu, Yu Han Hung

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)


When a semiconductor laser is subject to an incoming optical carrier, equivalently an external optical injection, it can enter nonlinear period-one dynamics through Hopf bifurcation due to the radical modification in field-carrier coupling of the injected laser which results from the dynamical competition between injection-imposed laser oscillation and injection-shifted cavity resonance. Equally-separated spectral components appear, of which intensity and frequency depend strongly on the injection level and frequency. This suggests that a dynamical amplitude or frequency variation of the incoming optical signal, such as amplitude-shift keying (ASK) or frequency-shift keying (FSK), respectively, would lead to corresponding dynamical variation in amplitude and frequency of each spectral component. Therefore, by properly selecting the optical frequency of the output optical carrier and by minimizing the residual ASK and FSK modulation, both ASK-to-FSK and FSK-to-ASK conversions can be achieved, where bit-error ratio down to 10 -12 is achieved with a slight power penalty. Only a typical semiconductor laser is necessary as the key conversion unit. In addition, frequency shifts of the optical carrier can also be achieved, which allows a simultaneous frequency conversion of the optical carrier if required.

主出版物標題Semiconductor Lasers and Laser Dynamics V
出版狀態Published - 2012 六月 20
事件Semiconductor Lasers and Laser Dynamics V - Brussels, Belgium
持續時間: 2012 四月 162012 四月 19


名字Proceedings of SPIE - The International Society for Optical Engineering


OtherSemiconductor Lasers and Laser Dynamics V

All Science Journal Classification (ASJC) codes

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


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