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All-optical frequency conversion using nonlinear dynamics of semiconductor lasers.
Hwang, Sheng-Kwang; Chen, How-Foo; Lin, Che-Yang.
Afiliação
  • Hwang SK; Department of Electro-Optical Engineering, National Cheng Kung University, Tainan, Taiwan. skhwang@mail.ncku.edu.tw
Opt Lett ; 34(6): 812-4, 2009 Mar 15.
Article em En | MEDLINE | ID: mdl-19282941
When a semiconductor laser is subject to optical injection, it can enter the period-one dynamics through Hopf bifurcation. Under such nonlinear dynamics, equally and oppositely frequency-shifted optical signals from the injection emerge and are utilized for frequency conversion. Only a typical semiconductor laser is required as the conversion unit, where no pump or probe laser is necessary. The frequency shift can be continuously tuned by controlling the level or frequency of the injection. A bit-error ratio down to 10(-12) is observed with no or a slight power penalty for amplitude, frequency, and phase modulation at 2.5 Gbits/s, suggesting modulation format transparency of the system. Frequency down-, no-, and upconversion can be simultaneously achieved and individually selected, increasing the flexibility and reconfigurability of the system.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Telecomunicações / Redes de Comunicação de Computadores / Processamento de Sinais Assistido por Computador / Lasers Semicondutores Tipo de estudo: Diagnostic_studies / Prognostic_studies Idioma: En Ano de publicação: 2009 Tipo de documento: Article
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Telecomunicações / Redes de Comunicação de Computadores / Processamento de Sinais Assistido por Computador / Lasers Semicondutores Tipo de estudo: Diagnostic_studies / Prognostic_studies Idioma: En Ano de publicação: 2009 Tipo de documento: Article