Multichannel fiber-optic amplifier at the wavelength of 1653 nm for lidar remote sensing of atmospheric methane concentrations

Grigorievskiy, V.I., Tezadov, Y.A.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Григорьевский В.И., Тезадов Я.А. Многоканальный волоконно-оптический усилитель на длину волны 1653 нм для лидарного контроля содержания метана в атмосфере // Оптический журнал. 2020. Т. 87. № 7. С. 60–64. http://doi.org/10.17586/1023-5086-2020-87-07-60-64

Grigorevskiĭ V.I., Tezadov Ya.A. Multichannel fiber-optic amplifier at the wavelength of 1653 nm for lidar remote sensing of atmospheric methane concentrations [in Russian] // Opticheskii Zhurnal. 2020. V. 87. № 7. P. 60–64. http://doi.org/10.17586/1023-5086-2020-87-07-60-64

For citation (Journal of Optical Technology):

V. I. Grigorevskiĭ and Ya. A. Tezadov, "Multichannel fiber-optic amplifier at the wavelength of 1653 nm for lidar remote sensing of atmospheric methane concentrations," Journal of Optical Technology . 87(7), 430-433 (2020). https://doi.org/10.1364/JOT.87.000430

Abstract:

We have developed and tested a multichannel fiber-optic Raman-effect amplifier with peak output power of the order of 10 W operating at the wavelength of 1653 nm. This amplifier is intended for use in a remote-sensing lidar for atmospheric methane and consists of three power amplifiers, each with an output power of more than 3 W. The output from these amplifiers was combined in a fiber-optic multiplexer and then fed to the lidar transmitter collimator. Our modeling of a single power amplifier indicated that the Raman conversion efficiency is improved when thin-core optical fibers are used; a thin-core optical fiber can be used to decrease both the pump power and the length of the optical fiber. We describe the seed light source spectrum and the multichannel amplifier output spectrum. The output power can be increased beyond 20 W by multiplexing in another four power amplifiers, which would provide sufficient lidar transmitter power to measure gas concentrations from a spacecraft in low-Earth orbit.

Keywords:

lidar, fiber optic amplifier, Raman effect, atmosphere, optical transmitter

OCIS codes: 280.0280, 120.0120

References:

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