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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 13 — May. 1, 2006
  • pp: 3173–3176

Frequency stabilization of an external cavity diode laser to molecular iodine at 657.483 nm

Hui-Mei Fang, Shing-Chung Wang, and Jow-Tsong Shy  »View Author Affiliations

Applied Optics, Vol. 45, Issue 13, pp. 3173-3176 (2006)

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The saturation spectrum of the P(84) 5–5 transition of I 127 2 at 657.483   nm is obtained with the third-harmonic demodulation method using an external cavity diode laser. The laser frequency is modulated by modulating the diode current instead of modulating the cavity length with a piezoelectric transducer (PZT). Current modulation allows a modulation frequency that is higher than PZT modulation. The signal-to-noise ratio of 1000 is better than previous results presented in the literature. The laser is frequency stabilized to the hyperfine component o of the P(84) 5–5 transition with a frequency stability of better than 10   kHz ( 2.2 × 10 11 relative stability).

© 2006 Optical Society of America

OCIS Codes
(020.2930) Atomic and molecular physics : Hyperfine structure
(140.2020) Lasers and laser optics : Diode lasers
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6360) Spectroscopy : Spectroscopy, laser
(300.6390) Spectroscopy : Spectroscopy, molecular
(300.6550) Spectroscopy : Spectroscopy, visible

ToC Category:

Original Manuscript: February 18, 2005
Revised Manuscript: June 17, 2005
Manuscript Accepted: June 24, 2005

Hui-Mei Fang, Shing-Chung Wang, and Jow-Tsong Shy, "Frequency stabilization of an external cavity diode laser to molecular iodine at 657.483 nm," Appl. Opt. 45, 3173-3176 (2006)

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