Coherence of a single mode InAlGaAs/InP cylinderical microlaser with two output ports

We experimentally investigate the coherence of a single mode InAlGaAs/InP cylindrical microlaser with two output waveguides. For a cylindrical microlaser with a radius of 15 μm and two 2 μm-wide output waveguides, single mode operation with a side mode suppression ratio of 30 dB is realized, and a f...

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Published inOptics letters Vol. 37; no. 11; p. 1977
Main Authors Lin, Jian-Dong, Huang, Yong-Zhen, Yang, Yue-De, Yao, Qi-Feng, Lv, Xiao-Meng, Xiao, Jin-Long, Du, Yun
Format Journal Article
LanguageEnglish
Published United States 01.06.2012
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Summary:We experimentally investigate the coherence of a single mode InAlGaAs/InP cylindrical microlaser with two output waveguides. For a cylindrical microlaser with a radius of 15 μm and two 2 μm-wide output waveguides, single mode operation with a side mode suppression ratio of 30 dB is realized, and a far-field interferometric pattern similar to a Young's interferometer is observed. The results indicate that the microlasers with two output waveguides can be used as the light source for an optical sensor by monitoring the phase change of the output emission from one port versus that of the other port.
ISSN:1539-4794
DOI:10.1364/OL.37.001977