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Picosecond Nd:YAG Laser with Wide Temperature Operation Range (–40… +40)°C

A. F. Kornev, Yu. V. Katsev, V. V. Koval, D. O. Oborotov, I. G. Kuchma, V. A. Mitryaev

Transactions of IAA RAS, issue 57, 16–22 (2021)

DOI: 10.32876/ApplAstron.57.16-22

Keywords: Nd:YAG laser, regenerative amplifier, picosecond pulses, second harmonic generation, wide temperature range, Satellite Laser Ranging

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Abstract

Picosecond lasers are widely used in various industrial and scientific applications. One of them is high-precision satellite laser ranging. The current state of the art for high-precision satellite laser ranging requires stable and reliable lasers with short pulse duration, high pulse repetition rates, and a high level of resistance to the ambient environment in order to achieve the highest measurement accuracy. Here we report on the development of Nd:YAG laser based on «master oscillator — regenerative amplifier — second harmonic generation» approach and applied for high-precision satellite laser ranging. A picosecond laser diode operating in the gain switch mode is used as a master oscillator. The regenerative amplifier is based on two Nd:YAG rods ⌀6 × 30 mm with diode end pumping. The LBO crystal 5 × 5 × 10 mm with type II phase matching is used as the second harmonic generator. Laser delivers 35 ps pulses at 532 nm wavelength with > 2.5 mJ pulse energy with < 2 % energy stability (RMS). The second-harmonic conversion efficiency was up to 65 %. The pulse repetition rate is 300 Hz (up to 1000 Hz is possible). The beam divergence is 0.3 mrad at $1⁄e^2$ intensity level for a beam diameter at the laser output of 3.4 mm. The main feature of the developed system is the possibility to operate at ambient temperatures from –40°C to +40°C that is achieved by proper thermal management: liquid thermal stabilization of the laser body using a chiller, as well as the use of a system of flexible heaters and multilayer thermal insulation. The laser is installed on the «Sazhen-TM» rangefinder in the observatory «Svetloe». The short pulse duration, high stability of the pulse shape and the pulse energy, as well as the possibility to operate in a wide range of ambient temperatures make this laser a demand tool for high-precision satellite laser ranging.

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A. F. Kornev, Yu. V. Katsev, V. V. Koval, D. O. Oborotov, I. G. Kuchma, V. A. Mitryaev. Picosecond Nd:YAG Laser with Wide Temperature Operation Range (–40… +40)°C // Transactions of IAA RAS. — 2021. — Issue 57. — P. 16–22. @article{kornev2021, abstract = {Picosecond lasers are widely used in various industrial and scientific applications. One of them is high-precision satellite laser ranging. The current state of the art for high-precision satellite laser ranging requires stable and reliable lasers with short pulse duration, high pulse repetition rates, and a high level of resistance to the ambient environment in order to achieve the highest measurement accuracy. Here we report on the development of Nd:YAG laser based on «master oscillator — regenerative amplifier — second harmonic generation» approach and applied for high-precision satellite laser ranging. A picosecond laser diode operating in the gain switch mode is used as a master oscillator. The regenerative amplifier is based on two Nd:YAG rods ⌀6 × 30 mm with diode end pumping. The LBO crystal 5 × 5 × 10 mm with type II phase matching is used as the second harmonic generator. Laser delivers 35 ps pulses at 532 nm wavelength with > 2.5 mJ pulse energy with < 2 % energy stability (RMS). The second-harmonic conversion efficiency was up to 65 %. The pulse repetition rate is 300 Hz (up to 1000 Hz is possible). The beam divergence is 0.3 mrad at $1⁄e^2$ intensity level for a beam diameter at the laser output of 3.4 mm. The main feature of the developed system is the possibility to operate at ambient temperatures from –40°C to +40°C that is achieved by proper thermal management: liquid thermal stabilization of the laser body using a chiller, as well as the use of a system of flexible heaters and multilayer thermal insulation. The laser is installed on the «Sazhen-TM» rangefinder in the observatory «Svetloe». The short pulse duration, high stability of the pulse shape and the pulse energy, as well as the possibility to operate in a wide range of ambient temperatures make this laser a demand tool for high-precision satellite laser ranging.}, author = {A.~F. Kornev and Yu.~V. Katsev and V.~V. Koval and D.~O. Oborotov and I.~G. Kuchma and V.~A. Mitryaev}, doi = {10.32876/ApplAstron.57.16-22}, issue = {57}, journal = {Transactions of IAA RAS}, keyword = {Nd:YAG laser, regenerative amplifier, picosecond pulses, second harmonic generation, wide temperature range, Satellite Laser Ranging}, pages = {16--22}, title = {Picosecond Nd:YAG Laser with Wide Temperature Operation Range (–40… +40)°C}, url = {http://iaaras.ru/en/library/paper/2086/}, year = {2021} } TY - JOUR TI - Picosecond Nd:YAG Laser with Wide Temperature Operation Range (–40… +40)°C AU - Kornev, A. F. AU - Katsev, Yu. V. AU - Koval, V. V. AU - Oborotov, D. O. AU - Kuchma, I. G. AU - Mitryaev, V. A. PY - 2021 T2 - Transactions of IAA RAS IS - 57 SP - 16 AB - Picosecond lasers are widely used in various industrial and scientific applications. One of them is high-precision satellite laser ranging. The current state of the art for high-precision satellite laser ranging requires stable and reliable lasers with short pulse duration, high pulse repetition rates, and a high level of resistance to the ambient environment in order to achieve the highest measurement accuracy. Here we report on the development of Nd:YAG laser based on «master oscillator — regenerative amplifier — second harmonic generation» approach and applied for high-precision satellite laser ranging. A picosecond laser diode operating in the gain switch mode is used as a master oscillator. The regenerative amplifier is based on two Nd:YAG rods ⌀6 × 30 mm with diode end pumping. The LBO crystal 5 × 5 × 10 mm with type II phase matching is used as the second harmonic generator. Laser delivers 35 ps pulses at 532 nm wavelength with > 2.5 mJ pulse energy with < 2 % energy stability (RMS). The second-harmonic conversion efficiency was up to 65 %. The pulse repetition rate is 300 Hz (up to 1000 Hz is possible). The beam divergence is 0.3 mrad at $1⁄e^2$ intensity level for a beam diameter at the laser output of 3.4 mm. The main feature of the developed system is the possibility to operate at ambient temperatures from –40°C to +40°C that is achieved by proper thermal management: liquid thermal stabilization of the laser body using a chiller, as well as the use of a system of flexible heaters and multilayer thermal insulation. The laser is installed on the «Sazhen-TM» rangefinder in the observatory «Svetloe». The short pulse duration, high stability of the pulse shape and the pulse energy, as well as the possibility to operate in a wide range of ambient temperatures make this laser a demand tool for high-precision satellite laser ranging. DO - 10.32876/ApplAstron.57.16-22 UR - http://iaaras.ru/en/library/paper/2086/ ER -