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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 8 — Apr. 15, 2010
  • pp: 1175–1177

Shift lens external-cavity diode laser for broad wavelength tuning and switching

Hideki Okamura  »View Author Affiliations


Optics Letters, Vol. 35, Issue 8, pp. 1175-1177 (2010)
http://dx.doi.org/10.1364/OL.35.001175


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Abstract

We propose an external-cavity laser diode that uses an electromagnetically actuated collimating lens for wavelength tuning. Because the wavelength in the grating equation is highly sensitive to the incident angle, a slight ( 1 μ m ) transverse displacement of the collimating lens induces a wavelength shift of 1 nm . We experimentally demonstrate a single-mode, stable, reproducible, and cw tuning over a range of 8 nm . The wavelength is proportional to the current applied to the lens actuator, and no hysteresis is observed within the experimental error. By changing the current, we achieve fast and reproducible wavelength switching.

© 2010 Optical Society of America

OCIS Codes
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3600) Lasers and laser optics : Lasers, tunable
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(090.1995) Holography : Digital holography

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 30, 2009
Revised Manuscript: February 16, 2010
Manuscript Accepted: February 18, 2010
Published: April 13, 2010

Citation
Hideki Okamura, "Shift lens external-cavity diode laser for broad wavelength tuning and switching," Opt. Lett. 35, 1175-1177 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-8-1175

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