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Eight-channel microdisk CW laser arrays vertically coupled to common output bus waveguides

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5 Author(s)
Seung June Choi ; Dept. of Electr. Eng.-Electrophys., Univ. of Southern California, Los Angeles, CA, USA ; Zhen Peng ; Qi Yang ; Sang Jun Choi
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1.6-nm spectrally spaced eight-channel semiconductor microdisk laser arrays are presented, where high-Q disk lasing modes are vertically coupled out through a common bus waveguide. The spectral channel spacing is achieved by varying the disk resonator radii from 10.6 to 10.95 μm. Typical linewidth of 0.25 nm and side-mode suppression ratio of -20dB are observed under continuous-wave lasing operation near /spl lambda/=1.51 μm. This is the first demonstration of integrated microresonator laser arrays.

Published in:

IEEE Photonics Technology Letters  (Volume:16 ,  Issue: 2 )