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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 12 — Jun. 8, 2009
  • pp: 10372–10377

A novel way for wavelength locking with acousto-optic frequency modulation

Zhang Zhang, Xiaolong Wang, and Qiang Lin  »View Author Affiliations

Optics Express, Vol. 17, Issue 12, pp. 10372-10377 (2009)

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A novel wavelength locking scheme called acousto-optic frequency modulation (AOFM) is put forward and demonstrated experimentally. The laser frequency is modulated by an acousto-optic modulator, rather than direct dithering on the laser resonator. A new optical configuration is proposed to compensate the angular deflection of the acousto-optic modulator, which is driven by a Direct Digital Synthesis generator with a frequency stability and precision on the order of Hz. This locking scheme is relatively simple and economical, and it can avoid extra frequency and intensity noise due to the direct frequency dither on the laser resonator in the conventional saturation absorption locking scheme. Our scheme provides a new way to improve the noise and stability of the tunable laser.

© 2009 OSA

OCIS Codes
(020.2930) Atomic and molecular physics : Hyperfine structure
(140.2020) Lasers and laser optics : Diode lasers
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 30, 2009
Revised Manuscript: May 22, 2009
Manuscript Accepted: June 2, 2009
Published: June 5, 2009

Zhang Zhang, Xiaolong Wang, and Qiang Lin, "A novel way for wavelength locking with acousto-optic frequency modulation," Opt. Express 17, 10372-10377 (2009)

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