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Journal Article

A simple scheme for precise relative frequency stabilization of lasers

MPS-Authors

Huke,  P.
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Rinkleff,  Rolf-Hermann
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Citation

Strauss, N., Ernsting, I., Schiller, S., Wicht, A., Huke, P., & Rinkleff, R.-H. (2007). A simple scheme for precise relative frequency stabilization of lasers. Applied Physics B, 88(1), 21-28. Retrieved from http://www.springerlink.com/content/g166q1861351823n/?p=0d0339f4e9754c23aa2eda52308c14b5&pi=3.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4953-9
Abstract
We present a simple scheme for tuneable relative frequency stabilization of lasers. A highly sensitive and accurate frequency-to-voltage converter is used to derive an error signal from the beat note between two lasers. We analyze in detail detector noise and drift, modulation detection bandwidth, and cross-talk from power modulation. The results indicate that sub-kHz relative linewidth and a locking point drift on the order of 100 Hz for times scales of 1 h are achievable. The scheme can, therefore, be applied to situations where up to now only optical PLLs could provide sufficient accuracy and precision. To demonstrate its potential for high-resolution, high-precision spectroscopy we lock a diode laser to a fs-frequency comb and find a relative linear drift of 314 Hz during a 2.8 h period.