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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 22 — Nov. 1, 2004
  • pp: 5549–5555

Flattop mode shaping of a vertical cavity surface emitting laser using an external-cavity aspheric mirror

Zhaohui H. Yang and James R. Leger  »View Author Affiliations


Optics Express, Vol. 12, Issue 22, pp. 5549-5555 (2004)
http://dx.doi.org/10.1364/OPEX.12.005549


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Abstract

Both square-shaped and circular-shaped flattop modes were experimentally demonstrated in extended-cavity broad-area VCSELs using aspheric feedback mirrors. These refractive aspheric mirrors were fabricated by electron-beam lithography on curved substrates. Excellent single-mode operation and improved power extraction efficiency were observed. The three-mirror structure of the VCSEL and the state-of-the-art fabrication of the aspheric mirror contribute to the superior VCSEL performance. The modal loss analysis using a rigid three-mirror-cavity simulation method is discussed.

© 2004 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3570) Lasers and laser optics : Lasers, single-mode
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers

ToC Category:
Research Papers

History
Original Manuscript: August 11, 2004
Revised Manuscript: October 20, 2004
Published: November 1, 2004

Citation
Zhaohui Yang and James Leger, "Flattop mode shaping of a vertical cavity surface emitting laser using an external-cavity aspheric mirror," Opt. Express 12, 5549-5555 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-22-5549


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References

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