Corrugation-pitch-modulated MQW-DFB laser with narrow spectral linewidth (170 kHz)
Corrugation-pitch-modulated MQW-DFB laser with narrow spectral linewidth (170 kHz)
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DOI：
10.1109/68.58038
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发表时间：
1990-08
影响因子：
2.6
通讯作者：
M. Okai;T. Tsuchiya;K. Uomi;N. Chinone;T. Harada
中科院分区：
文献类型：
--
作者：
M. Okai;T. Tsuchiya;K. Uomi;N. Chinone;T. Harada
在具有多量子阱(MQW)的1200微米长的波纹间距调制(CPM)分布反馈(DFB)激光器中，在1.5微米波长下获得了170 kHz的光谱线宽。这是迄今报道的InGaAsP DFB激光器最窄的线宽。CPM结构通过抑制空间烧孔效应，有效地保持了单纵模的高输出功率。线宽功率积为400 kHz·mW，外推剩余谱线宽为150 kHz。
A spectral linewidth of 170 kHz was achieved at a 1.5- mu m wavelength in a 1200- mu m long corrugation-pitch-modulated (CPM) distributed feedback (DFB) laser having multiple quantum wells (MQW). This is the narrowest linewidth ever reported for InGaAsP DFB lasers. The CPM structure is effective in maintaining the single longitudinal mode at a high output power by suppressing the spatial hole burning effect. The linewidth-power product is 400 kHz-mW, and the extrapolated residual spectral linewidth is 150 kHz.>