Optical reference cavity temperature control system

A technology of temperature control system and reference cavity, which is applied in the field of optical reference cavity temperature control system, can solve the problems that cannot meet the requirements of laser frequency stability, etc., and achieve the effect of large temperature control range and high temperature control accuracy

Pending Publication Date: 2019-01-01
NAT INST OF METROLOGY CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This situation cannot meet the current ultra-high precision measurement requirements for laser frequency stability

Method used

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  • Optical reference cavity temperature control system
  • Optical reference cavity temperature control system
  • Optical reference cavity temperature control system

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0048] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses an optical reference cavity temperature control system. The system comprises a vacuum housing layer, a temperature control shielding layer and a temperature control loop, wherein the vacuum housing layer is disposed at the outermost layer, the temperature control shielding layer is disposed in the vacuum housing layer, and the optical reference cavity is disposed in the temperature control shielding layer. The temperature control loop includes a semiconductor refrigerating chip, wherein the semiconductor refrigerating chip is used to control the temperature of the temperature control shielding layer. The optical reference cavity temperature control system of the invention has a large temperature control range and high temperature control precision.

Description

technical field [0001] The invention relates to the field of vacuum temperature control, in particular to an optical reference chamber temperature control system. Background technique [0002] With the development of the field of optical frequency metrology, the requirements for frequency stability of lasers are getting higher and higher. At present, for highly stable lasers, it is generally used to lock the laser on a highly stable reference cavity. This puts high demands on the stability of the reference cavity. The stability of the reference cavity is affected by many factors, among which the influence of temperature stability and vibration on the cavity length is more significant. The stability of the cavity length directly determines the frequency stability of the laser after frequency locking and stabilization. The relationship between cavity length and frequency stability: [0003] [0004] Among them, Δf is the frequency jitter of the laser after locking, ΔL is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/24
CPCG05D23/24
Inventor 杨涛孙震林弋戈王强李烨方占军
Owner NAT INST OF METROLOGY CHINA
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