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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 17 — Jun. 10, 2012
  • pp: 3930–3935

Wide-angle emission and single-mode deformed circular microlasers with a flat side

Jian-Dong Lin, Ling-Xiu Zou, Yong-Zhen Huang, Yue-De Yang, Qi-Feng Yao, Xiao-Meng Lv, Jin-Long Xiao, and Yun Du  »View Author Affiliations

Applied Optics, Vol. 51, Issue 17, pp. 3930-3935 (2012)

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We demonstrate wide-angle emission and single mode operation in deformed circular microlasers with a flat side. The mode characteristics of a metallic confined deformed circular resonator with a flat side are investigated by finite-difference time-domain simulation. The numerical results indicate that this structure is suitable to realize wide-angle emission. Furthermore, metallic confined deformed circular microlasers with a flat side are fabricated using common photolithography and inductively coupled-plasma etching techniques. A continuous-wave single-mode operation with a side mode suppression ratio of 25 dB is achieved at an injection current of 4 mA for an 8 μm radius microlaser with a flat side. Additionally, wide angle emission over 120° is observed from the far-field pattern.

© 2012 Optical Society of America

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

Original Manuscript: April 6, 2012
Manuscript Accepted: May 20, 2012
Published: June 8, 2012

Jian-Dong Lin, Ling-Xiu Zou, Yong-Zhen Huang, Yue-De Yang, Qi-Feng Yao, Xiao-Meng Lv, Jin-Long Xiao, and Yun Du, "Wide-angle emission and single-mode deformed circular microlasers with a flat side," Appl. Opt. 51, 3930-3935 (2012)

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