宽度调制线状有源区分布式反射激光器的低阈值工作

2004 IEEE 19th International Semiconductor Laser Conference, 2004. Conference Digest. Pub Date : 2004-09-21 DOI:10.1109/ISLC.2004.1382792

K. Ohira, T. Murayama, M. Hirose, H. Yagi, S. Tamura, S. Arai

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引用次数: 0

摘要

通过调制线状有源区的宽度，实现了由有源DFB段和无源DBR段组成的分布式反射器(DR)激光器。当条纹宽度为3.4 /spl mu/m, DFB截面长度为150时，阈值电流低至1.5 mA，前面差分量子效率为21%，子模抑制比(SMSR)超过50 dB。

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Low-threshold operation of distributed reflector laser with width modulated wirelike active regions

A distributed reflector (DR) laser consisting of an active DFB section and a passive DBR section was realized by modulating widths of wirelike active regions. A threshold current as low as 1.5 mA, a differential quantum efficiency from the front facet of 21% and a sub-mode suppression ratio (SMSR) over 50 dB were realized for a stripe width of 3.4 /spl mu/m and a DFB section length of 150.

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2004 IEEE 19th International Semiconductor Laser Conference, 2004. Conference Digest.

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