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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 16 — Aug. 15, 2000
  • pp: 1165–1167

Continuous tuning of an electrically tunable external-cavity semiconductor laser

M. Kourogi, K. Imai, B. Widyatmoko, T. Shimizu, and M. Ohtsu  »View Author Affiliations


Optics Letters, Vol. 25, Issue 16, pp. 1165-1167 (2000)
http://dx.doi.org/10.1364/OL.25.001165


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Abstract

We propose and demonstrate a novel approach to achieving rapid and phase-coherent continuous broadband tuning of a single-mode external-cavity semiconductor laser. Two internal acousto-optic devices control the angle of incident light on a diffraction grating and the effective round-trip phase electronically. Although the present implementation derives the phase from a long delay line and is not yet mode-hop free, the new approach lends itself to fully electronic control.

© 2000 Optical Society of America

OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable
(230.1040) Optical devices : Acousto-optical devices

Citation
M. Kourogi, K. Imai, B. Widyatmoko, T. Shimizu, and M. Ohtsu, "Continuous tuning of an electrically tunable external-cavity semiconductor laser," Opt. Lett. 25, 1165-1167 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-16-1165


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References

  1. T. Miyahara, K. Nakamura, M. Sato, and H. Ito, in Conference on Lasers and Electro-Optics (CLEO/U.S.), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper CThO21.
  2. G. Coquin and K. W. Cheung, Electron. Lett. 24, 599 (1988).
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  5. K. Nakamura, F. V. Kowalski, and H. Ito, Opt. Lett. 22, 889 (1997).

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