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Novosibirsk, Russia

Kolker D.B.,Novosibirsk State Technical University | Starikova M.K.,Novosibirsk State Technical University | Pustovalova R.V.,Institute of Laser Physics | Karapuzikov A.I.,Institute of Laser Physics | And 3 more authors.
Instruments and Experimental Techniques | Year: 2012

An optical parametric oscillator (OPO) with double-pass pump based on MgO:PPLN and PPLN periodic structures is described. A compact nanosecond Nd:YLF laser has been used as a pump source at 1.053 μm (the pumping pulse duration is 5-7 ns at a maximum pulse energy of 300 μJ at frequencies of 1-7 kHz). The oscillation threshold of the OPO based on MgO:PPLN was varied in a range of 11-28 μJ at wavelength of 2.1-4.3 μm. The conversion efficiency from the pump wave to an idler wave decreased from 8.6 to 2.5% in the range of 2.0-4.3 μm. For PPLN-OPO the measured threshold was 36 μJ at 4.2 μm and 49 μJ at 4.7 μm. The conversion efficiency of the pump energy into the energy of an idler wave was 3.3-0.4% at wavelengths of 4.2-4.7 μm. © Pleiades Publishing, Ltd., 2012. Source


Marchev G.,Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy | Reza M.,Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy | Reza M.,University of Pavia | Badikov V.,Kuban State University | And 15 more authors.
Applied Optics | Year: 2014

We compare linear, planar ring, and rotated image singly resonant twisted rectangle (RISTRA) type nanosecond optical parametric oscillator cavities using HgGa2S4 nonlinear crystal pumped by 8 ns pulses at 1064 nm from a low beam quality pump source. The input-output characteristics and the output idler beam quality at 6300 nm are compared for two values of the pump beam diameter presenting different cavity Fresnel numbers and magnitudes of the spatial walk-off effect due to birefringence. The RISTRA cavity ensures in all cases a circular output beam profile but is advantageous in terms of beam quality with respect to the planar ring only at a large pump beam diameter. © 2014 Optical Society of America. Source


Marchev G.,Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy | Reza M.,Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy | Reza M.,University of Pavia | Badikov V.,Kuban State University | And 15 more authors.
Conference on Lasers and Electro-Optics Europe - Technical Digest | Year: 2014

Idler beam quality at 6.3m from HgGa2S4 OPO is compared for linear, planar ring and RISTRA cavities. The last one produces smooth, circular profile and much higher focal fluence. © 2014 Optical Society of America. Source


Boyko A.A.,Special Technologies Ltd. | Karapuzikov A.I.,RAS Institute of Laser Physics | Chernikov S.B.,RAS Institute of Laser Physics | Spitcin V.V.,RAS Institute of Laser Physics | And 8 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2014

We report automated waveguide RF excited 13C16O2 - laser based on Z-shaped resonant cavity. The laser possesses possibility of wavelength tuning from 9.5 to 11.5 μm by means of the cavity's diffraction grating position management. The diffraction grating position is driven by precision motorized linear actuator. The lasing lines of P-branch from 11.04 to 11.31 μm were studied in details. Operating mode selection is performed with specially designed PC software "Tunable CO2 - Laser". P-branch 11P(10) - 11P(32) lines' tuning time does not exceed 3 sec. © 2014 SPIE. Source


Kostyukova N.Y.,Novosibirsk State Technical University | Kolker D.B.,Novosibirsk State University | Zenov K.G.,Special Technologies Ltd. | Boyko A.A.,Novosibirsk State Technical University | And 3 more authors.
Laser Physics Letters | Year: 2015

We demonstrate an optical parametric oscillator based on two HgGa2S4 crystals with an extremely wide tuning range from 4.2 to 10.8 μm. The HgGa2S4 optical parametric oscillator was pumped by a Q-switched nanosecond Nd : YLF laser at 1.053 μm. The absorption spectrum of ammonia was presented to demonstrate the feasibility of the developed optical parametric oscillator system for spectroscopic measurements and gas detection. © 2015 Astro Ltd. Source

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