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A wavelength locking system

A wavelength locking and polarization reflection technology, applied in the field of wavelength locking systems, can solve the problems of small temperature drift, high reliability and high output power, and achieve the effects of small temperature change, reduced power loss and small beam area

Active Publication Date: 2022-04-05
SUZHOU EVERBRIGHT PHOTONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to solve the problem that the wavelength locking system in the prior art cannot take into account the problems of high output power, good output beam quality, small temperature drift and high reliability, so as to provide a wavelength locking system

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The present invention provides a wavelength locking system, comprising: a semiconductor light-emitting structure; an external feedback structure; a selective reflector, located in the optical path from the semiconductor light-emitting structure to the external feedback structure, the selective reflector includes a polarization reflection area and a surrounding The transmission area of ​​the polarization reflection area; the polarization reflection area is suitable for reflecting the light beam emitted by the semiconductor light emitting structure to the polarization reflection area as polarized light and transmitting the polarized light to the external feedback structure, the polarization The reflective area is also adapted to pass through part of the light beam emitted by the semiconductor light emitting structure to the polarized reflective area; the transmissive area is adapted to pass through the light beam emitted to the transmissive area by the semiconductor light emitting structure. The wavelength locking system takes into account high output power, high output beam quality, small temperature drift and high reliability.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a wavelength locking system. Background technique [0002] A wavelength locking system usually includes: a semiconductor light-emitting structure, an energy-transmitting optical fiber, and an external feedback structure. The external feedback structure is a volume Bragg grating, or the external feedback structure includes a diffraction grating and an external cavity mirror. Among them, the semiconductor light-emitting structure has the advantages of high electro-optical conversion efficiency, compact structure, low cost and long life, and is currently widely used as an optical pump source. [0003] However, the wavelength locking device in the prior art is located in the main optical path. When the locking optical device is a volume grating and the volume grating passes through the high-power laser, it will be severely heated, resulting in serious drift of the center wave...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/00G02B27/09
CPCH01S5/0085G02B27/0927
Inventor 俞浩胡欢王俊廖新胜闵大勇
Owner SUZHOU EVERBRIGHT PHOTONICS CO LTD
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