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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 24 — Aug. 20, 2002
  • pp: 5045–5050

Characterization of angled tapered superluminescent LEDs

Federica Causa, Jayanta Sarma, and Sharina Yunus  »View Author Affiliations


Applied Optics, Vol. 41, Issue 24, pp. 5045-5050 (2002)
http://dx.doi.org/10.1364/AO.41.005045


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Abstract

We present a detailed analysis of the output beam of high-power edge-emitting angled tapered superluminescent LEDs (A-TSLEDs). A device model, including spontaneous and stimulated emission processes as well as the typical nonuniform carrier-density distribution due to current spreading and carrier diffusion, has been developed and used to interpret the experimentally obtained characteristics of inhouse-fabricated A-TSLEDs. The good match between measured and theoretical results indicates that the model reproduces the A-TSLED operation very satisfactorily and clearly explains the role of the collecting lens on the pronounced asymmetry of some of the measured optical intensity profiles.

© 2002 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(230.3670) Optical devices : Light-emitting diodes

History
Original Manuscript: January 25, 2002
Revised Manuscript: February 6, 2002
Published: August 20, 2002

Citation
Federica Causa, Jayanta Sarma, and Sharina Yunus, "Characterization of angled tapered superluminescent LEDs," Appl. Opt. 41, 5045-5050 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-24-5045

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