Enhancement of the energy potential of a lidar for methane detection with the use of a quasi-continuous radiation source

Akimova, G. A.; Grigoryevskii, V.I.; Mataibaev, V. V.; Sadovnikov, V. P.; Syrykh, Yu. P.; Tezadov, Ya. A.; Fedenev, Andrei V.; Khabarov, V. V.

doi:10.1134/s1064226915100022

Cited by 6 publications

(1 citation statement)

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“…Земли и планет с летательных аппаратов требуются мощные, более 1-3 Вт лазерные источники в диапазоне линий поглощения метана 1640-1660 нм, обладающие узким спектром излучения, менее ширины линии поглощения метана, которая составляет ~ 0.1 нм. Для применения лидаров на космических аппаратах для глобального мониторинга содержания метана требуется мощность в максимуме излучаемого импульса, превышающая 20-30 Вт [1]. В настоящее время таких мощных, коммерческих источников излучения не существует.…”

Section: в лидарных технологиях определения содержания метана в атмосферахunclassified

Bipolarized Raman amplification for lidar transmitter.

Grigorievsky¹,

Ras²,

Tezadov³

2021

JRE

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A comparison is made of the spectral distortions of the output radiation of a Raman amplifier in the case of one and two-polarization amplification of modulated radiation in an extended optical fiber. With an output power of 3.5 W at a wavelength of 1649 nm, the spectral distortions for bipolarization amplification are lower, which makes it possible to increase the amplifier output power to ~ 4 W, and the level of spectral distortions at the amplifier output makes possible to carry out lidar measurements of methane concentration by a remote method with high accuracy. Simulation of bipolarization Raman amplification was carried out along with experimental verification. For this simulation, the coefficient of depolarization of radiation propagating in an extended single-mode fiber was introduced. The experimental results and the results of theoretical modeling are in good agreement. An increase in the amplifier power also makes it possible to increase the methane sensing range in an open atmosphere with lidars using Raman amplifiers as transmitters.

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Section: в лидарных технологиях определения содержания метана в атмосферахunclassified

Bipolarized Raman amplification for lidar transmitter.

Grigorievsky¹,

Ras²,

Tezadov³

2021

JRE

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Modeling and Investigation of High-Power Optical-Fiber Transmitters for Lidar Applications

2017

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Increase in the output power of radiation with a wavelength of about 1650 nm using dual-polarised Raman amplification

Grigorievsky¹,

Tezadov²

2021

Quantum Electron.

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Nonlinear distortions of radiation at the Raman amplifier output in the regimes with one and two orthogonal polarisations (single- and dual-polarised amplification) in an extended optical fibre are compared. At an output power of 3.5 W and a wavelength of 1650 nm the nonlinear distortions for dual-polarised amplification are smaller, due to which a narrower spectrum can be provided for output radiation. As a result, one can measure more exactly, for example, the methane concentration using a remote lidar system. A somewhat higher power of an undistorted signal (∼4 W) without deteriorating the spectral properties of output radiation is obtained in the dual-polarised amplification regime at the aforementioned wavelength.

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Enhancement of the energy potential of a lidar for methane detection with the use of a quasi-continuous radiation source

Cited by 6 publications

References 0 publications

Bipolarized Raman amplification for lidar transmitter.

Bipolarized Raman amplification for lidar transmitter.

Modeling and Investigation of High-Power Optical-Fiber Transmitters for Lidar Applications

Increase in the output power of radiation with a wavelength of about 1650 nm using dual-polarised Raman amplification

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