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This article is cited in 16 scientific papers (total in 16 papers)
Light modulation
Compact acousto-optic modulator operatingin the purely Raman–Nath diffraction regime as a phase modulator in FM spectroscopy
V. N. Baryshev, V. M. Epikhin All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements, Mendeleevo, Moskovskaya obl.
Abstract:
We report fabrication of a new acousto-optic modulator (AOM-RN) operating purely in the Raman–Nath diffraction regime. This device can be used as an external phase modulator in frequency-modulation (FM) optical heterodyne spectroscopy for fast and broadband frequency control of diode lasers. The AOM-RN design is significantly simplified, and its dimensions are minimised due to a decrease (by almost an order of magnitude in comparison with the existing AOMs) in the acousto-optic interaction length and the absence of impedance matching circuit. The FM spectroscopy based on AOM-RN makes it possible to analyse both absorption and dispersion properties of optical resonances under study; this possibility is shown by the example of saturated-absorption resonances in cesium vapour. The possibility of detecting coherent population trapping resonances using FM spectroscopy with AOM-RN as an external phase modulator is experimentally demonstrated.
Received: 10.02.2009 Revised: 15.03.2010
Citation:
V. N. Baryshev, V. M. Epikhin, “Compact acousto-optic modulator operatingin the purely Raman–Nath diffraction regime as a phase modulator in FM spectroscopy”, Kvantovaya Elektronika, 40:5 (2010), 431–436 [Quantum Electron., 40:5 (2010), 431–436]
Linking options:
https://www.mathnet.ru/eng/qe14074 https://www.mathnet.ru/eng/qe/v40/i5/p431
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