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A graphene-based main oscillator power amplifier

A power amplifier and graphene technology, which is applied in lasers, phonon exciters, laser parts, etc., can solve the problems of long energy level relaxation time, affecting laser power stability, and poor light suppression effect on small signal noise.

Active Publication Date: 2021-09-03
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

For producing long-wave infrared band CO 2 The main oscillator power amplifier of the laser, currently adopts SF 6 Gas separator or hot CO 2 gas isolators to isolate, however, the SF 6 Gas separator and hot CO 2 The gas isolator is limited by the energy level characteristics of the isolated gas, and has defects such as high insertion loss and long energy level relaxation time, and has poor suppression effect on small signal noise light, which affects the stability of laser power

Method used

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  • A graphene-based main oscillator power amplifier
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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the drawings and specific implementation methods. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0034] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed bel...

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Abstract

The application discloses a graphene-based main oscillation power amplifier, including a main oscillation laser, a first beam expander collimator, a transmissive graphene optical isolator, a first amplifier, a mirror, a second beam expander collimator, a reflector type graphene optical isolator, a second amplifier; the transmissive graphene optical isolator includes a first substrate, the first graphene film positioned at the front of the first substrate or the back of the first substrate; the reflective graphene optical isolator includes a second Substrate, the second graphene film positioned at the front of the second substrate; the diameters of the first graphene film and the second graphene film are greater than the diameter of the incident laser, and the front of the first substrate and the front of the second substrate are respectively facing the first beam expander The surface of the collimating device and the surface of the second beam expander collimating device. The transmissive graphene optical isolator and reflective graphene optical isolator have the ability to suppress small signal noise light and high-power laser light to pass through without loss, and can effectively ensure the laser power stability of the main oscillation power amplifier.

Description

technical field [0001] The present application relates to the field of semiconductor technology, in particular to a graphene-based main oscillator power amplifier. Background technique [0002] High repetition rate, narrow pulse width, high power CO 2 The laser cannot be directly generated by a single laser at this stage, and the technical approach of the master oscillator power amplifier (Master Oscillator Power-Amplifier, MOPA for short) is mainly used, that is, the master oscillator laser with high repetition rate and narrow pulse width is passed through a multi-stage amplifier. Get power amplification. [0003] Due to the super radiation of the amplifier, the back reflection and scattering of various optical elements inserted in the optical path, and the light leakage caused by the finite extinction ratio of various electro-optic devices, etc., seriously interfere with the normal operation of the main oscillator laser and amplifier, so it is necessary to monitor these ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/134H01S3/041H01S3/07H01S3/083H01S3/13
CPCH01S3/041H01S3/076H01S3/0835H01S3/134H01S3/13013
Inventor 郭劲潘其坤陈飞张冉冉于德洋张阔孙俊杰邵春雷张鲁薇
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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