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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 19 — Oct. 1, 2013
  • pp: 3807–3810

Four-wavelength microdisk laser array laterally coupled with a bus waveguide

Ling-Xiu Zou, Xiao-Meng Lv, Yong-Zhen Huang, Heng Long, Qi-Feng Yao, Jin-Long Xiao, and Yun Du  »View Author Affiliations

Optics Letters, Vol. 38, Issue 19, pp. 3807-3810 (2013)

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A four-wavelength microdisk laser array laterally coupled with a bus waveguide is demonstrated numerically and experimentally. The coupled-mode characteristics as well as scattering loss in the bus waveguide caused by the connected microdisks are simulated by a 2D finite-difference time-domain technique. An AlGaInAs/InP microdisk laser array with circular radii of 10.1, 10.2, 10.3, and 10.4 μm is designed and fabricated by common photolithography and an inductively coupled-plasma etching technique. Continuous-wave electrically injected operation is realized at room temperature with the lowest threshold current of 3 mA. Four-wavelength lasing operation is realized with wavelength intervals of 3–4 nm and side mode suppression ratios larger than 25 dB. Finally, the influences of heating effect and thermal cross talk on lasing mode wavelength tuning are investigated experimentally.

© 2013 Optical Society of America

OCIS Codes
(140.3290) Lasers and laser optics : Laser arrays
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.5300) Optoelectronics : Photonic integrated circuits
(230.4555) Optical devices : Coupled resonators

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 15, 2013
Revised Manuscript: August 24, 2013
Manuscript Accepted: August 29, 2013
Published: September 23, 2013

Ling-Xiu Zou, Xiao-Meng Lv, Yong-Zhen Huang, Heng Long, Qi-Feng Yao, Jin-Long Xiao, and Yun Du, "Four-wavelength microdisk laser array laterally coupled with a bus waveguide," Opt. Lett. 38, 3807-3810 (2013)

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