OSA's Digital Library

Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 9, Iss. 6 — Jun. 10, 2011
  • pp: 061404–

Single-mode surface-emitting distributed feedback quantum-cascade lasers based on hybrid waveguide structure

Wanhong Guo, Junqi Liu, Jianyan Chen, Lu Li, Lijun Wang, Fengqi Liu, and Zhanguo Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 9, Issue 6, pp. 061404- (2011)


View Full Text Article

Acrobat PDF (822 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

Surface-emitting distributed feedback quantum-cascade lasers operating at \lambda \approx 7.8 \mu m are demonstrated. The metal-covered second-order grating is shallow-etched into the surface of a thin InGaAs contact and cladding layer. This forms a hybrid waveguide and used to achieve relatively low waveguide losses and high coupling strengths. The devices exhibit stable single-mode operation from 90 to 130 K with a side mode suppression ratio above 20 dB. A slope efficiency of 194 mW/A is obtained at 90 K, which is twice higher than that of the Fabry-Perot counterpart.

© 2011 Chinese Optics Letters

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(250.7270) Optoelectronics : Vertical emitting lasers
(250.7360) Optoelectronics : Waveguide modulators
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

Citation
Wanhong Guo, Junqi Liu, Jianyan Chen, Lu Li, Lijun Wang, Fengqi Liu, and Zhanguo Wang, "Single-mode surface-emitting distributed feedback quantum-cascade lasers based on hybrid waveguide structure," Chin. Opt. Lett. 9, 061404- (2011)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-9-6-061404

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited