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Optics Letters

Optics Letters


  • 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)

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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

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)

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