Multiwavelength lasers with homogeneous gain and intensity-dependent loss

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• 作者：Feng Li^a ; ^{enlf@polyu.edu.hk} ; Xinhuan Feng^b ; Huan Zheng^a ; ^c ; C. Lu^a ; H.Y. Tam^d ; J. Nathan Kutz^e ; P.K.A. Wai^a
• 关键词：Multiwavelength lasers ; Homogeneous gain ; Intensity dependent loss ; Ultra-flat spectrum
• 刊名：Optics Communications
• 出版年：2011
• 出版时间：1 May 2011
• 年：2011
• 卷：284
• 期：9
• 页码：2327-2336
• 全文大小：1144 K

文摘

Using a simple discrete laser model that incorporates only gain and loss, we showed that lasers with homogeneous gain can have multiwavelength continuous wave output if the loss element is a saturable transmitter. The intensity-dependent loss provides an adaptive balance to the different gain values at different wavelengths. The output power spectrum of the multiwavelength laser will be flat if the laser operates near a peak of the transmission of the intensity-dependent loss.