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Wavelength locking system

A technology of wavelength locking and polarization reflection, which is applied in laser components, optics, instruments, etc., can solve the problems of small temperature drift, high output power, and high reliability, and achieve small temperature changes, small beam area, and reduced power loss. Effect

Active Publication Date: 2022-03-01
SUZHOU EVERBRIGHT PHOTONICS +1
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  • Abstract
  • Description
  • Claims
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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 described below in conjunction with the drawings, which is apparent from the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.

[0028] In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, is meant to facilitate the description of the present invention and simplified description, rather than indicating or implying that the device or component must have a specific orientation. Construct and operation, so it is not understood to be the limitation of the invention. Moreover, the term "first", "second",...

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Abstract

The invention provides a wavelength locking system. The wavelength locking system comprises a semiconductor light-emitting structure; an external feedback structure; the selective reflector is located in a light path from the semiconductor light-emitting structure to the external feedback structure, and the selective reflector comprises a polarization reflection area and a transmission area surrounding the polarization reflection area; the polarization reflection area is suitable for reflecting light beams emitted to the polarization reflection area by the semiconductor light emitting structure into polarized light and transmitting the polarized light to the external feedback structure, and the polarization reflection area is also suitable for transmitting part of the light beams emitted to the polarization reflection area by the semiconductor light emitting structure; the transmission area is suitable for light beams emitted to the transmission area through the semiconductor light-emitting structure. The wavelength locking system has the advantages of high output power, high output light beam quality, small temperature drift and high reliability.

Description

Technical field [0001] The present invention relates to the field of semiconductor technology, and more particularly to a wavelength locking system. Background technique [0002] Wavelength locking systems typically include: semiconductor light emitting structure, transmission optical fiber, external feedback structure. The external feedback structure is a body block grating, or an external feedback structure comprises a diffraction grating and a perfumeglass. 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 a light pump source. [0003] The wavelength locking device in the prior art is in the main optical path. When the latching optical device is severely heated when the bulk grating is high, the center wavelength of the output beam of the semiconductor light emitting structure is severe; the locking optical device is diffraction When...

Claims

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Application Information

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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
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