OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 4 — Feb. 15, 2004
  • pp: 361–363

Effective suppression of beam divergence for a high-power laser diode bar by an external-cavity technique

Xin Gao, Yujin Zheng, Hirofumi Kan, and Kazunori Shinoda  »View Author Affiliations


Optics Letters, Vol. 29, Issue 4, pp. 361-363 (2004)
http://dx.doi.org/10.1364/OL.29.000361


View Full Text Article

Acrobat PDF (432 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We describe effective suppression of beam divergence for a high-power laser diode bar by use of an external-cavity technique. Nineteen off-axis external-cavity laser diodes of the high-power laser diode are formed by feedback with a stripe mirror. At three times the threshold current, the diverging angle (1/e2) of the external-cavity laser diode bar is reduced to 1.5° from 6.6° (free running) with 14.1-W peak output power and 70.4% of the radiated power of the free-running state without the external cavity. This technique effectively improves the beam quality of the high-power laser diode bar.

© 2004 Optical Society of America

OCIS Codes
(140.2010) Lasers and laser optics : Diode laser arrays
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3410) Lasers and laser optics : Laser resonators
(140.5960) Lasers and laser optics : Semiconductor lasers

Citation
Xin Gao, Yujin Zheng, Hirofumi Kan, and Kazunori Shinoda, "Effective suppression of beam divergence for a high-power laser diode bar by an external-cavity technique," Opt. Lett. 29, 361-363 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-4-361


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. W. A. Clarkson and D. C. Hanna, Opt. Lett. 21, 375 (1996).
  2. S. Yamaguchi, T. Kobayashi, Y. Saito, and K. Chiba, Opt. Lett 20, 898 (1995).
  3. P. Y. Wang, Laser Focus World 37(12), 115 (2001).
  4. S. Heinemann and L. Leininger, Proc. SPIE 3267, 116 (1998).
  5. V. Raab and R. Menzel, Opt. Lett. 27, 167 (2002).
  6. R. M. R. Pillai and E. M. Garmire, IEEE J. Quantum Electron. 32, 996 (1996).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited