Unlock instant, AI-driven research and patent intelligence for your innovation.

Common-cavity frequency stabilization device based on time-division multiplexing

A time-division multiplexing and frequency-stabilizing technology, applied in laser parts, electrical components, phonon exciters, etc., can solve the problem that the laser cannot be locked to the cavity of the same F-P cavity.

Active Publication Date: 2019-04-09
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a common cavity frequency stabilization device based on time-division multiplexing to solve the problem that two laser beams with small frequency intervals cannot be locked on the cavity of the same F-P cavity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Common-cavity frequency stabilization device based on time-division multiplexing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 As shown, this embodiment provides a common cavity frequency stabilization device based on time-division multiplexing, including a first tunable laser TLS1, a second tunable laser TLS2, an optical switch, an electrical switch, an electro-optical modulator EOM, and a polarization beam splitter PBS, λ / 4 glass slide, F-P cavity, PDH frequency stabilization system, photodetector PD, radio frequency signal source RF, mixer Mixer, proportional integral circuit PID, signal processing unit 1 and signal processing unit 2. In this embodiment, the difference between the frequency of the laser light emitted by the first tunable laser TLS1 and the frequency of the laser light emitted by the second tunable laser TLS2 does not exceed 50 GHz. On the cavity of the cavity, there are obvious deficiencies in the prior art, which are mainly manifested in the following two aspects: (1) It is impossible to distinguish two laser beams whose frequency interval does not exceed 5...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention proposes a common-cavity frequency stabilization device based on time-division multiplexing. The first tunable laser and the second tunable laser are connected to the two input terminals of the optical switch, enter the electro-optic modulator through the output terminal of the optical switch, and are separated by a polarization beam splitter. There are two paths, one is directly incident to the photodetector, the other is incident to the F-P cavity through the λ / 4 glass slide, and after returning through the F-P cavity, it is incident to the photodetector again through the polarization beam splitter, and the signal emitted by the RF signal source The radio frequency signal enters the electro-optic modulator to provide an excitation signal for the photoelectric modulator. The radio frequency signal sent by the radio frequency signal source is also input to the proportional integral circuit through the mixer together with the output signal of the photodetector. The output terminal of the proportional integral circuit is connected to the electric The input end of the switch and the two output ends of the electrical switch are respectively connected to the first tunable laser and the second tunable laser via the first signal processing unit and the second signal processing unit. The invention has the beneficial effects of locking two laser beams with smaller frequency intervals on the cavity body of the same F-P cavity.

Description

technical field [0001] The invention relates to the technical field of laser frequency stabilization, in particular to a common cavity frequency stabilization device based on time division multiplexing. Background technique [0002] PDH (Pound-Drever-Hall) frequency stabilization technology is the most important frequency stabilization technology in the current laser frequency stabilization system. The idea of ​​this technology was proposed by Pound in 1946 and was first used on microwaves. Later, Drever and Hall introduced It has been successfully applied to the field of laser frequency stabilization, so this laser frequency stabilization technology is called PDH frequency stabilization technology. PDH frequency stabilization technology selects the resonant frequency ω of the optical resonator 0 As a reference frequency standard, radio-frequency electro-optic modulation is performed on the laser frequency to generate two sidebands distributed on both sides of the laser fre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/098H01S3/139
CPCH01S3/1109H01S3/139
Inventor 朱兴邦王少水陈坤峰王恒飞孙权社孙庆旭
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP