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Automatic locking system for optical resonator and relative phase between two beams

An optical resonant cavity and automatic locking technology, which is applied to lasers, laser parts, electrical components, etc., can solve the problems of poor vibration resistance, cumbersome operation, and large volume, and achieve low cost, simple locking operation, and small volume.

Active Publication Date: 2019-04-05
SHANXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems of high cost, large volume, poor anti-vibration performance, manual re-locking after loss of lock, etc. , providing an automatic locking system for the relative phase between the optical resonator and the two beams

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  • Automatic locking system for optical resonator and relative phase between two beams
  • Automatic locking system for optical resonator and relative phase between two beams
  • Automatic locking system for optical resonator and relative phase between two beams

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 As shown, the automatic locking system for the relative phase between the optical resonant cavity and the two beams of light in this embodiment includes a signal detector 7, a proportional amplification and integration circuit module 1, an AD conversion module 2, a control module 3, DA conversion module 4 and high-voltage amplifier 6; The signal input end of described proportional amplification and integral circuit module 1 is connected with the signal output end of signal detector, and the signal output end of proportional amplification and integral circuit module 1 is connected with the signal of AD conversion module 2 The input end is connected, and the signal detector is connected with the system to be locked; the signal input end of the control module 3 is connected with the signal output end of the AD conversion m...

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Abstract

The invention provides an automatic locking system for a relative phase between an optical resonant cavity and two light beams, belongs to the field of photoelectric technology, and aims to solve the technical problem of easiness in causing complicated operations since an existing locking system for a relative phase between an optical resonant cavity and two light beams has the defects of high cost, large size, poor oscillation resistance and need of manual relocking after lock loss. A signal input end of a proportional amplifying and integrating circuit module is connected with a signal output end of a signal detector; a signal output end of the proportional amplifying and integrating circuit module is connected with a signal input end of an AD conversion module; the signal detector is connected with a system to be locked; a signal input end of the control module is connected with a signal output end of the AD conversion module; a signal output end of the control module is connected with a signal input end of a DA conversion module; a signal output end of the DA conversion module is connected with a signal input end of a high-voltage amplifier; and a signal output end of the high-voltage amplifier is connected with a signal input end of the system to be locked.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to an automatic locking system for the relative phase between an optical resonant cavity and two beams of light. Background technique [0002] Quantum optics is an important research topic in today's world, among which quantum information, quantum computing, and precision measurement are the main research directions. In these quantum optics experiments, especially those based on continuous variables, various optical resonators are used to control different phases of the laser light. In experiments, in general, we hope that the laser has lower noise, higher power stability, and better phase stability, so the locking of the optical path becomes particularly important. In addition, in many experiments, such as the measurement of entangled light fields, quantum separation of matter, quantum storage, etc., it is necessary to lock the relative phase between two laser beams. Lock...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/10
CPCH01S3/10053
Inventor 秦际良霍美如贾晓军闫智辉彭堃墀
Owner SHANXI UNIV
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