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Chinese Optics Letters

Chinese Optics Letters


  • Editor: Zhizhan Xu
  • Vol. 11, Iss. 10 — Oct. 1, 2013
  • pp: 100201–

Modulation-free laser frequency offset locking using buffer gas-induced resonance

Guoqing Yang, Yunfei Xu, Qiang Lin, and Han Zhang  »View Author Affiliations

Chinese Optics Letters, Vol. 11, Issue 10, pp. 100201- (2013)

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We experimentally demonstrate a simple modulation-free scheme for offset locking the frequency of a laser using buffer gas-induced resonance. Our scheme excludes the limitation of low diffraction efficiency and laser input intensity when an acousto-optic modulator is applied to shift the laser frequency from the resonance. We show the stabilization of a strong 795-nm laser detuned up to 550 MHz from the 87Rb 5S1/2F=2->5P1/2 F'=2 transition. The locking range can be modified by controlling the buffer gas pressure. A laser line width of 2 MHz is achieved over 10 min.

© 2013 Chinese Optics Letters

OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(140.2020) Lasers and laser optics : Diode lasers
(270.1670) Quantum optics : Coherent optical effects
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:
Atomic and Molecular Physics

Guoqing Yang, Yunfei Xu, Qiang Lin, and Han Zhang, "Modulation-free laser frequency offset locking using buffer gas-induced resonance," Chin. Opt. Lett. 11, 100201- (2013)

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