Improvement of InGaAs/GaAs vertical-cavity surface-emitting lasers by post-oxidation annealing
Chinese Optics Letters, Vol. 10, Issue 12, pp. 122501-122501 (2012)
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Abstract
InGaAs/GaAs vertical-cavity surface-emitting lasers (VCSELs) are fabricated by a thermal selective wet-oxidation confinement technique. Post-oxidation annealing in a nitrogen environment at high temperatures is then conducted to improve the performance of the oxide-confined InGaAs/GaAs VCSELs. The optimum post-oxidation annealing conditions are determined by changing the furnace temperature and annealing time. Compared with a unannealed laser device, the light output power increases by about 12%. An aging test is carried out to examine the reliability of the annealed oxide-confined VCSEL device. The temperature dependence of the lasing wavelength of the annealed oxide-confined VCSELs is also investigated.
© 2012 Chinese Optics Letters
OCIS Codes
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(250.5960) Optoelectronics : Semiconductor lasers
(140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers
ToC Category:
Optoelectronics
Citation
Changling Yan, Yun Deng, Peng Li, Xiaomao Song, and Jianwei Shi, "Improvement of InGaAs/GaAs vertical-cavity surface-emitting lasers by post-oxidation
annealing," Chin. Opt. Lett. 10, 122501-122501 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-12-122501
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