Diffraction efficiency of a double-pass acousto-optic modulation system
J. Barrios, J. álvarez, F. Racedo N
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Base Information
Volume
V54 - N1 / 2021 Ordinario
Reference
01-ago
DOI
http://dx.doi.org/10.7149/OPA.54.1.51051
Language
English
Keywords
Acousto-optic modulation, single pass, double pass, AOM optimization
Abstract
We described the characterization of an acousto-optic modulation system and the optimization of the set up to improve the efficiency of diffraction in single and double-pass configurations. In the single-pass configuration, the system consists of an acousto-optic modulator, a voltage-controlled oscillator (VCO) and a radio frequency amplifier, in which the diffraction efficiency and the optical power of the diffracted beam were characterized in the function of the applied radiofrequency. Additionally, taking as a reference the need to correct the variation of the diffraction angle that may occur when the system is modulated in frequency in a simple step, its correction is presented by means of the implementation of the configuration in double step. The double-pass configuration consists of a VCO that controls the incoming acoustic signal to the modulator, a modulator which diffracts the incident light and this passes through a retarder sheet to avoid the retroreflection of the beam. Then, using an iris, only order 1 of diffraction of the beam was allowed to pass and a plane mirror was used for working in the infrared which directs the laser in the second pass of it in the modulator. Once the double-pass system had been optimized, the diffraction efficiency curve was obtained. This work is presented as an updated guide for the implementation of an acousto-optic modulation system in a double-pass configuration.
References
A. Yariv,Quantum Electronics., Wiley (1989).
Donley E A, Heavner T P, Levi F, Tataw M and Jefferts S R 2005 Review of Scientific Instruments 76(6)063112 1–6
Brillouin L 1922 Ann. Phys 17(2) 88–122
Debye P and Sears F 1932 Proceedings of the National Academy of Sciences 18(6) 409–414
Lucas R and Biquard P 1932 Journal de Physique et le Radium 3 464–477
B. N. J and L. J. N,Acousto-optic signal processing: Theory and implementation, MarcelDekker, Inc. (1983)
Waluyo T B, Mulyanto I and On H 2008 Jurnal Fisika Himpunan Fisika Indonesia 8(1) 30–38
Korpel A 1981 Proceedings of the IEEE 69(1) 48–53
Berg N J and Lee J N 1983 Acousto-optic signal processing: Theory and implementation (Optical engineering vol 2) (New York: Marcel Dekker, Inc.)
IntraAction C 2019 Model atm series acousto-optic modulator URL
D. W. M Bass, E Van Stryland and W. Wolfe,Handbook of optics, McGRAW-HIL, Inc.)(1995).
Jodlowski L 2003 Opto-Electronics Review 11(1) 55–64
Chih-Hao Chang, R. K. Heilmann, M. L. Schattenburg, and P. Glenn Review of Scientific Instruments 79, 033104 (2008)
J. M. Chowning, "The synthesis of complex audio spectra by means of frequency modula-tion,"Journal of the audio engineering society 21(7), 526–534 (1973).
A. D. R. R. M Aldous, J Woods and M. Himsworth, "Carrier frequency modulation of an acousto-optic modulator for laser stabilization," (2017)
S.-L. Jang, Y.-K. Wu, C.-C. Liu,et al., "A dual-band cmos voltage-controlled oscillator im-plemented with dual-resonance lc tank,"IEEE microwave and wireless components letters19(12), 816–818 (2009).