| 光纤光栅外腔半导体激光器的高频调制特性 |
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| 引用本文： | 瞿荣辉,耿健新,张位在,曹根娣,罗颍,陈高庭,王向朝,方祖捷.光纤光栅外腔半导体激光器的高频调制特性[J].光学学报,2001,21(11):360-1363. |
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| 作者姓名： | 瞿荣辉 耿健新 张位在 曹根娣 罗颍 陈高庭 王向朝 方祖捷 |
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| 作者单位： | 中国科学院上海光学精密机械研究所, |
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| 基金项目： | 国家科委 86 3高科技项目，上海市应用物理中心资助
课题 |
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| 摘 要： | 报道了光纤光栅外腔激光器瞬态特性的理论分析，引入了一个适用于外腔情况的等效光子寿命，模拟计算表明，要获得高于2．5GHz的调制速率，光纤光栅外腔的长度必须短于4cm范围，对所研制的光纤光栅外腔激光器进行了高频调制测量，得到了在1GHz下的单模激光输出，边模抑制比在40dB以上，3dB动态线宽为0．1nm左右，20dB动态线宽为0．3nm。
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| 关 键 词： | 光纤光栅 外腔 高频调制 半导体激光器 |
Characteristics of Fiber Bragg Grating External Cavity Semiconductor Lasers under High Frequency Modulation |
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| Qu Ronghui Geng Jianxin Zhang Weizai Cao Gendi Luo Ying Chen Gaoting,Wang Xiangzhao Fang Zujie.Characteristics of Fiber Bragg Grating External Cavity Semiconductor Lasers under High Frequency Modulation[J].Acta Optica Sinica,2001,21(11):360-1363. |
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| Authors: | Qu Ronghui Geng Jianxin Zhang Weizai Cao Gendi Luo Ying Chen Gaoting Wang Xiangzhao Fang Zujie |
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| Abstract: | Transient characteristics of fiber Bragg grating external cavity laser are presented. An effective photon lifetime is introduced to describe the photon behavior in external cavity condition. Simulation results show that the length of external cavity should be shorter than 4 cm in order to ensure the modulation frequency to be larger than 2.5 GHz. Single mode emission of an external cavity laser was obtained experimentally at 1 GHz modulation with side mode suppression ratio better than 40 dB, 3 dB dynamic line width about 0.1 nm, and 20 dB dynamic line width about 0.3 nm. |
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| Keywords: | fiber grating external cavity laser high frequency modulation |
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