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

Narrow-pulse polarization controller

A polarization controller and narrow pulse technology, which is used in lasers, phonon exciters, laser parts, etc. to achieve good polarization stabilization, high control accuracy, and strong temperature adaptability.

Inactive Publication Date: 2012-07-25
THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing polarization controllers are only designed based on DC light, and polarization controllers for pulsed light need to be developed

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
  • Narrow-pulse polarization controller
  • Narrow-pulse polarization controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The structure of the present invention is: comprising a sequentially connected light source, an electrically adjustable polarization controller, a polarizer, and an output terminal, and its improvement lies in: inserting a reference signal detection circuit between the light source and the electrically adjustable polarization controller, A feedback signal detection circuit is inserted between the detector and the output terminal; both the reference signal detection circuit and the feedback signal detection circuit are connected to the central processing unit; the output of the central processing unit is connected to the electrically adjustable polarization controller after being passed through a D / A converter.

[0019] The reference signal detection circuit includes: a coupler, a photoelectric converter 1, a signal conditioning circuit 1, a comparator and a peak hold circuit 1; wherein, the input of the coupler is connected to the light source, and one of the outputs of t...

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 invention discloses a narrow-pulse polarization controller comprising a light source, an electric adjustable polarization controller, a polarizer and an output terminal which are sequentially connected. The narrow-pulse polarization controller brings the following improvement: a reference signal detection circuit is inserted between the light source and the electric adjustable polarization controller; a feedback signal detection circuit is inserted between the polarizer and the output terminal; the reference signal detection circuit and the feedback signal detection circuit are connected to a central processing unit (CPU); and the output terminal of the CPU is connected with the electric adjustable polarization controller via a D / A (digital / analog) converter. The polarization controller has the following beneficial technical effects: the polarization controller has simple structure, strong adaptability to temperature, high control accuracy and good polarization stabilizing effect and can be widely applied to active control of polarization in narrow-pulse and low repetition frequency systems.

Description

technical field [0001] The invention relates to a laser polarization control technology, in particular to a narrow pulse polarization controller. Background technique [0002] Most of the new generation of high-power solid-state laser fusion driver optical pulse generation systems adopt advanced all-fiber solidification technology solutions. In order to achieve long-term stable output of multi-channel optical pulse generation systems, system polarization control is very important. A large number of optical pulse generation systems in NIF devices in the United States A single polarization optical fiber, polarization maintaining device and polarization controller are used to realize the polarization stability of the system, and the polarization state in the system needs to be controlled in a targeted manner. Since the domestic polarization component system for 1um waveguides is not perfect, the optical pulse generation system of the Shenguang III laser device uses all ...

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): H01S3/102
Inventor 谭敬孙力军何灼容徐啸王彦入张宇科曾依满季万涛
Owner THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP