Measurement and control of residual amplitude modulation in optical phase modulation

The Review of Scientific Instruments
Liufeng LiLisheng Chen

Abstract

Residual amplitude modulation is one of the major sources of instability in ultra-sensitive optical detections based on frequency modulation. Using a MgO·LiNbO(3) electro-optic crystal, we systematically measure the temperature and polarization dependence of residual amplitude modulation and our experimental results are in good agreement with a previous theoretical analysis. After optical phase modulation, two independent arms including optical detection and frequency demodulation are employed to closely examine the instability of the residual amplitude modulation. Residual amplitude modulation below 25 ppm is obtained with an active cancellation scheme in which the crystal temperature is varied so as to zero the baseline drifts with different origins. Possible improvements for better suppression and stability are discussed.

References

Aug 9, 2003·Physical Review Letters·Holger MüllerAchim Peters
May 20, 2005·Nature·Masao TakamotoHidetoshi Katori
Aug 16, 2006·Physical Review Letters·W H OskayJ C Bergquist
Oct 15, 2008·Physical Review Letters·Tomotada AkutsuMasa-Katsu Fujimoto
Feb 1, 1983·Optics Letters·M D LevensonD E Horne
May 15, 1988·Applied Optics·J A Silver, A C Slanton
Aug 20, 1992·Applied Optics·H C Sun, E A Whittaker

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Citations

Sep 1, 2014·The Review of Scientific Instruments·Chun WangLisheng Chen
Feb 25, 2014·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Keiko KokeyamaRana X Adhikari
Mar 16, 2019·Applied Optics·Pierre GrüningFrédéric Du-Burck
Jul 11, 2021·The Review of Scientific Instruments·Liufeng LiLisheng Chen

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