CN205646427U

CN205646427U - Take laser of polarizing prism to adjust detection device

Info

Publication number: CN205646427U
Application number: CN201620287687.6U
Authority: CN
Inventors: 赵飞; 梁硕熙; 陈日升; 柴俊杰; 魏永杰; 钱金宁; 王亮; 李云飞; 王鹏
Original assignee: Research Institute of Physical and Chemical Engineering of Nuclear Industry
Current assignee: Research Institute of Physical and Chemical Engineering of Nuclear Industry
Priority date: 2016-04-08
Filing date: 2016-04-08
Publication date: 2016-10-12
Anticipated expiration: 2026-04-08

Abstract

The utility model discloses a take laser of polarizing prism to adjust detection device, including the polarizing prism, the polarizing prism is driven by step motor, laser beam in proper order on polarizing prism, screening polarizing prism shine the wedge, the wedge with laser beam divide into that the key light is restrainted, no. I reference beam, no. II reference beam, no. I reference beam is by the wavemeter collection, no. II reference beam are gathered by power response unit's photoelectric probe, power response unit links to each other with control laser beam 0, the control analytical equipment electric signal transmission that will feed back give step motor's control circuit. The utility model discloses well wedge can divide into no. I reference beam that the key light is restrainted, is fed back no. II reference beam of usefulness and detects usefulness with laser beam, and step motor received the feedback signal of telecommunication among control analytical equipment, the power response unit to real -time adjustment, the power that realization output key light was restrainted is level and smooth, and the wavemeter can carry out real -time detection to the wavelength.

Description

A kind of laser regulation detection device of band polarizing prism

Technical field

This utility model belongs to a kind of laser regulation detection device, is specifically related to the laser regulation inspection of a kind of band polarizing prism Survey device.

Background technology

In laser spectrum experimentation field, excite electricity such as study the excitation spectrum of certain atom or certain atom From path etc., need high power laser light, and need the stationarity of frequent calibration of laser power, avoid laser power bigger than normal as far as possible Or less than normal, it is ensured that stably to export when laser power is long, require the accuracy of wavelength to need optical maser wavelength simultaneously and be monitored, Laser spectrum experiment is made to be smoothed out.These are desirable that and control laser power the most accurately, it is possible to carry out fluctuation quickly Response.In order to ensure the reliability of experimental data, overcome in experimentation due to the laser power fluctuation of laser instrument itself, it is desirable to The resistance to high power of laser power smoothing apparatus and there is certain stable output function.

A lot of method is existed for stabilized lasers power and use, but rests essentially within and light path is manually adjusted, adjust The shortcomings such as control is complicated, these shortcomings can be attributed to: one, is frequently utilized that power is adjusted by attenuator in an experiment, declines Subtract the resistance to power of sheet low, it is impossible to solve the higher laser of power density；Two, power smooth narrow range；Three, experiment needs power Stable output, when carrying out laser power smooth, is required for manually being adjusted light rate in the past, and operation easier is relatively big and easy Laser optical path is caused to change impact experiment；When four, in an experiment wavelength being scanned, the skew of power can be caused, it is desirable to Being corrected power, the Stability and veracity of regulation was relatively low in the past；Five, it is difficult to laser power is accomplished the prison of real-time Survey and adjust；Six, monitoring optical maser wavelength needs again to build light path, and complex operation is complicated.Spectral investigation or excite ionization to grind Study carefully involved wave-length coverage big, in the experimentation that wavelength is scanned, due to laser instrument self and environmental factors, laser merit Rate, often with fluctuation, is often required to carry out laser power real-time smooth, and requirement can long time stably export and supervise simultaneously Power scale and optical maser wavelength, to ensure that experiment is smoothed out.

To sum up, the laser power of prior art is smooth and wavelength monitoring device and method there is also laser power light path and builds The monitoring narrow, real-time of complicated, regulation power bracket is complicated, regulation difficulty, motility is low, poor repeatability, regulation accuracy are low etc. one Series of problems.

Summary of the invention

This utility model is that the problem solving prior art existence proposes, and its objective is to provide a kind of band polarizing prism Laser regulation detection device.

The technical solution of the utility model is: the laser regulation detection device of a kind of band polarizing prism, including polarizing prism, Polarizing prism is by step motor drive, and laser beam sequentially passes through polarizing prism, screening polarizing prism is irradiated on wedge, wedge Laser beam is divided into main beam, No. I reference beam, No. II reference beam, and No. I reference beam is gathered by band meter, No. II ginseng Examine light beam to be connected with control analytical equipment by the photoelectric probe collection of power response device, power response device, described control The signal of telecommunication of feedback is transferred to the control circuit of motor by analytical equipment.

Described power response device, control analytical equipment are connected by data line.

In this utility model, laser beam can be divided into main beam, No. II reference beam of feedback and detection to use by wedge No. I reference beam, motor receives the feedback signal of telecommunication controlled in analytical equipment, power response device, thus in real time Adjusting, it is achieved the power smooth of output main beam, wavelength can be detected by band meter in real time, the letter of this utility model structure Single, easy to operate, measuring accuracy is high, and reusing is strong, widely applicable.

Accompanying drawing explanation

Fig. 1 is overall structure connection diagram of the present utility model；

Wherein:

1 polarizing prism 2 motor

3 data lines 4 control analytical equipment

5 power response device 6 wedges

7 screening polarizing prism 8 band meters

9 main beam 10 I reference beams

11 No. II reference beam 12 laser beams.

Detailed description of the invention

Hereinafter, with embodiment, this utility model is described in detail referring to the drawings:

As it is shown in figure 1, the laser regulation detection device of a kind of band polarizing prism, including polarizing prism 1, polarizing prism 1 by Motor 2 drives, and laser beam 12 sequentially passes through polarizing prism 1, screening polarizing prism 7 is irradiated on wedge 6, and wedge 6 will Laser beam 12 is divided into main beam 10, No. II reference beam 11 of 9, No. I reference beam, and No. I reference beam 10 is adopted by band meter 8 Collection, No. II reference beam 11 is by the photoelectric probe collection of power response device 5, power response device 5 and control analytical equipment 4 phase Even, the signal of telecommunication of feedback is transferred to the control circuit of motor 2 by the described analytical equipment 4 that controls.

Described power response device 5 converts light signals into the signal of telecommunication by photoelectric probe, and dress is analyzed in described control Put 4 by grind China industrial microcomputer and single-chip microcomputer form.

Described power response device 5, control analytical equipment 4 are connected by data line 3.

Work process of the present utility model is as follows:

First, laser beam 12 direction is adjusted, makes laser beam 12 by polarizing prism 1 and screening polarizing prism 7, from the laser beam 12 of screening polarizing prism 7 injection by wedge 6 center, laser beam 12 is divided into main beam 9, I by wedge 6 Number 10, No. II reference beam 11 of reference beam, described main beam 9 for preparing laser for rear end, No. II reference beam 11 For feedback laser for smoothing reference, No. I reference beam 10 is that wavelength measurement uses.

Then, No. II reference beam 11 is input in the photoelectric probe of power response device 5, and No. I reference beam 10 inputs In band meter 8, thus realize the real-time detection of optical maser wavelength.

Finally, by power response device 5, the signal of telecommunication of feedback is transferred to the control circuit of motor 2, controls electricity Road adjusts motor 2 and rotates, thus drives polarizing prism 1 to rotate, and makes laser power steadily export.

Claims

1. a laser regulation detection device for band polarizing prism, including polarizing prism (1), it is characterised in that: polarizing prism (1) Being driven by motor (2), laser beam (12) sequentially passes through polarizing prism (1), screening polarizing prism (7) is irradiated to wedge (6), on, laser beam (12) is divided into main beam (9), No. I reference beam (10), No. II reference beam (11) by wedge (6), No. I Reference beam (10) by band meter (8) gather, No. II reference beam (11) by the photoelectric probe collection of power response device (5), Power response device (5) is connected with controlling analytical equipment (4), and described control analytical equipment (4) is by the signal of telecommunication transmission of feedback Control circuit to motor (2).

The laser regulation detection device of a kind of band polarizing prism the most according to claim 1, it is characterised in that: described merit Rate responding device (5), control analytical equipment (4) are connected by data line (3).