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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 9 — Sep. 1, 2012
  • pp: 091404–091404

AlGaInAs/InP coupled-circular microlasers

Yongzhen Huang, Jiandong Lin, Qifeng Yao, Xiaomeng Lv, Yuede Yang, Jinlong Xiao, and Yun Du  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 9, pp. 091404-091404 (2012)


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Abstract

AlGaInAs/InP coupled-circular microlasers with radius of 10- and 2-μm width middle bus waveguide are fabricated by photolithography and inductively coupled plasma etching techniques. Room-temperature continuous-wave single-mode operation is realized with an output power of 0.17 mW and a side-mode suppression ratio of 23 dB at 45 mA. A longitudinal mode interval of 11 nm is obtained from the lasing spectra, and mode Q factor of 6.2×103 is estimated from 3-dB width of a minor peak near the threshold current. The mode characteristics are simulated by finite-difference time-domain technique for coupled-circular resonators. The results show that, in addition to the coupled modes, high-radial-order whispering gallery modes with travelling wave behaviors can also have high Q factors in the coupled-circular resonators with a middle bus waveguide.

© 2012 Chinese Optics Letters

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(230.5750) Optical devices : Resonators
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Lasers and Laser Optics

Citation
Yongzhen Huang, Jiandong Lin, Qifeng Yao, Xiaomeng Lv, Yuede Yang, Jinlong Xiao, and Yun Du, "AlGaInAs/InP coupled-circular microlasers," Chin. Opt. Lett. 10, 091404-091404 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-9-091404

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