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 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.
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
Jian-Dong
JD
Lin
Yong-Zhen
YZ
Huang
Yue-De
YD
Yang
Qi-Feng
QF
Yao
Xiao-Meng
XM
Lv
Jin-Long
JL
Xiao
Yun
Y
Du