Frequency stabilization of a semiconductor laser using the Rb saturated absorption spectroscopy

Y. Ohta; S. Maehara; K. Hasebe; Y. Kurosaki; T. Sato; M. Ohkawa; T. Maruyama; T. Tsubokawa

doi:10.1117/12.645726

28 February 2006 Frequency stabilization of a semiconductor laser using the Rb saturated absorption spectroscopy

Y. Ohta, S. Maehara, K. Hasebe, Y. Kurosaki, T. Sato, M. Ohkawa, T. Maruyama, T. Tsubokawa

Proceedings Volume 6115, Physics and Simulation of Optoelectronic Devices XIV; 61150P (2006) https://doi.org/10.1117/12.645726
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

We report on the stabilization of a semiconductor laser's frequency, using Rb absorption lines. In order to improve overall frequency stability within our system, we adjusted the setup used in Rb- saturated absorption spectroscopy, and optimized modulation parameters such as modulation - frequency and -width, to more accurately detect the error signal. When we stabilized laser frequency using a Doppler-free absorption line of Rb atoms, a time-constant of 0.01sec, and a modulation frequency of 7.77kHz, relative optical frequency stability of 2.12×10^-12≤σ(2,τ)≤5.88×10^-11 was achieved, in averaging time for 0.04s≤τ≤65s.

Citation Download Citation

Y. Ohta, S. Maehara, K. Hasebe, Y. Kurosaki, T. Sato, M. Ohkawa, T. Maruyama, and T. Tsubokawa "Frequency stabilization of a semiconductor laser using the Rb saturated absorption spectroscopy", Proc. SPIE 6115, Physics and Simulation of Optoelectronic Devices XIV, 61150P (28 February 2006); https://doi.org/10.1117/12.645726

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