| Investigation of External Optical Feedback Resistance of IC—DFB and GC—DFB Lasers Using a Very Simple Experimental set—up |
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| 引用本文： | 孙长征,熊兵,罗毅,中野义昭.Investigation of External Optical Feedback Resistance of IC—DFB and GC—DFB Lasers Using a Very Simple Experimental set—up[J].中国物理快报,2003,20(7):1061-1063. |
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| 作者姓名： | 孙长征 熊兵 罗毅 中野义昭 |
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| 作者单位： | [1]StateKeyLabonIntegratedOptoelectronics,DepartmentofElectronicEngineering,Tsinghuauniversity,Beijing100084 [2]DepartmentofElectronicEngineering,universityofTokyo,7-3-1Hongo,Bunkyo-ku,Tokyo113-8656,japan |
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| 摘 要： | We study the external optical feedback resistance of both index-coupled(IC) and gain-coupled distributed feed-back(DFB) lasers using a very simple experimental set-up.Though IC-DFB lasers with large coupling coefficients are found to be less sensitive to external reflection,they suffer from mode instability at high injection level.On the other hand ,the introduction of gain-coupling mechanism can significantly improve both the immunity of external optical feedback and the single mode yield of the device.
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| 关 键 词： | 分布式反馈激光器 光纤传输系统 光网络 IC－DFB激光器 GC－DFB激光器 |
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