A Narrow-Band Optical Parametric Oscillator Based on a Periodically Polarized Structure of Lithium Niobate with Volume Bragg Grating

A narrow-band radiation source based on a MgO:PPLN-crystal near-degenerate optical parametric oscillator (OPO) with a volume Bragg grating (VBG) and a wavelength of 2128 nm was developed. The signal wavelength of the developed OPO is tuned in a wide range of 2041–2106 nm; the idler wavelength is tun...

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Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2022-12, Vol.65 (6), p.934-941
Main Authors: Kostyukova, N. Yu, Erushin, E. Yu, Boyko, A. A., Kolker, D. B.
Format: Article
Language:English
Subjects:
Bragg gratings
Electrical Engineering
General Experimental Techniques
Lithium niobates
Measurement Science and Instrumentation
Optical Parametric Oscillators
Parametric amplifiers
Physical Chemistry
Physics
Physics and Astronomy
Radiation sources
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Summary:A narrow-band radiation source based on a MgO:PPLN-crystal near-degenerate optical parametric oscillator (OPO) with a volume Bragg grating (VBG) and a wavelength of 2128 nm was developed. The signal wavelength of the developed OPO is tuned in a wide range of 2041–2106 nm; the idler wavelength is tuned in the spectral range of 2152–2224 nm with a linewidth of approximately 0.5–0.89 nm. Five types of mirrors with different reflection coefficients for generated radiation ( R = 55, 60, 66.5, 79.5, and 88.6%) were used as the output coupler of the OPO cavity. The maximum achieved OPO radiation power was ~1 W (200 μJ) for a mirror with R = 55% at a wavelength of 2128 nm. The measured OPO beam quality factor in the vertical and horizontal planes amounted to 3.6 and 4.2, respectively.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441222060069