CN203376144U - Simple and automatic test system for polarization of semiconductor laser - Google Patents

Simple and automatic test system for polarization of semiconductor laser Download PDF

Info

Publication number
CN203376144U
CN203376144U CN201320397527.3U CN201320397527U CN203376144U CN 203376144 U CN203376144 U CN 203376144U CN 201320397527 U CN201320397527 U CN 201320397527U CN 203376144 U CN203376144 U CN 203376144U
Authority
CN
China
Prior art keywords
motor
semiconductor laser
rotating device
polarizing prism
polarization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320397527.3U
Other languages
Chinese (zh)
Inventor
徐昊
李超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Institute of Biomedical Engineering and Technology of CAS
Original Assignee
Suzhou Institute of Biomedical Engineering and Technology of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Institute of Biomedical Engineering and Technology of CAS filed Critical Suzhou Institute of Biomedical Engineering and Technology of CAS
Priority to CN201320397527.3U priority Critical patent/CN203376144U/en
Application granted granted Critical
Publication of CN203376144U publication Critical patent/CN203376144U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

本实用新型公开了一种简易自动化半导体激光器偏振测试系统,包括半导体激光器,所述半导体激光器出射端依次设置有组合光路、偏振棱镜和功率探测器,所述偏振棱镜通过皮带或齿轮传动与电机控制转动装置内的电机连接,所述电机控制转动装置包括所述电机和电机控制器,所述偏振棱镜通过限位开关与所述电机控制器连接,所述电机控制转动装置与所述功率探测器分别连接电脑。本实用新型操作简单,可避免不同探测器之间的误差,准确测量P、S方向功率值,即准确测量TM、TE两种激光模式的功率,棱镜固定装置带有90°限位,准确实现P、S分光的对应,即同一光束TM、TE两种模式的准确分离。

Figure 201320397527

The utility model discloses a simple and automatic semiconductor laser polarization testing system, which comprises a semiconductor laser. The emitting end of the semiconductor laser is sequentially provided with a combined optical path, a polarizing prism and a power detector. The polarizing prism is driven by a belt or a gear and controlled by a motor. The motor in the rotating device is connected, the motor-controlled rotating device includes the motor and a motor controller, the polarizing prism is connected with the motor controller through a limit switch, and the motor controls the rotating device and the power detector Connect to the computer separately. The utility model is simple to operate, can avoid errors between different detectors, and accurately measure the power values in the P and S directions, that is, accurately measure the power of the two laser modes of TM and TE. The correspondence of P and S splitting, that is, the accurate separation of the two modes of TM and TE of the same beam.

Figure 201320397527

Description

一种简易自动化半导体激光器偏振测试系统A Simple and Automatic Diode Laser Polarization Testing System

技术领域 technical field

本实用新型涉及一种半导体激光器偏振测试系统,具体涉及一种简易自动化半导体激光器偏振测试系统。 The utility model relates to a semiconductor laser polarization test system, in particular to a simple and automatic semiconductor laser polarization test system.

背景技术 Background technique

高功率、高效率、高亮度半导体激光二极管因其体积小、效率高寿命长、稳定可靠、使用成本低等优点,被广泛的应用于固体激光器及光纤激光器制造、工业、医疗、娱乐显示、国防、激光通讯与基础研究等领域。高功率、高效率、高亮度半导体激光二极管的应用对于我国工业、医疗、娱乐显示、国防等领域的产业升级换代至关重要,它不但能帮助提高工业等的生产效率,还能降低产品使用成本,既节能,又环保。 High-power, high-efficiency, and high-brightness semiconductor laser diodes are widely used in solid-state laser and fiber laser manufacturing, industry, medical treatment, entertainment display, and national defense due to their small size, high efficiency, long life, stability and reliability, and low cost of use. , laser communication and basic research and other fields. The application of high-power, high-efficiency, and high-brightness semiconductor laser diodes is crucial to the upgrading of industries in the fields of industry, medical care, entertainment display, and national defense in my country. It can not only help improve industrial production efficiency, but also reduce product use costs. , both energy saving and environmental protection.

大功率半导体激光器均采用应变量子阱结构,输出为线偏振光,测试输出激光的偏振,可以反应器件的半导体材料与谐振腔内部结构特性;半导体激光器的工业应用中,为提高半导体激光器的光束质量,常利用偏振耦合技术,将线偏振光耦合为圆偏振光。因此半导体激光器偏振的测量对激光器的性能检测和后期使用有非常重要的意义。 All high-power semiconductor lasers adopt a strained quantum well structure, and the output is linearly polarized light. Testing the polarization of the output laser can reflect the semiconductor material of the device and the internal structure characteristics of the resonator; in the industrial application of semiconductor lasers, in order to improve the beam quality of semiconductor lasers , often using polarization coupling technology to couple linearly polarized light into circularly polarized light. Therefore, the measurement of the polarization of semiconductor lasers is of great significance to the performance detection and later use of lasers.

《中国激光》“半导体激光器阵列偏振特性及其与应力关系的实验研究”(Vol.36,No.5,May,2009)中介绍了一种半导体激光器阵列偏振特性的测试方法,是激光光束经过偏振片照射到CCD相机上,将偏振片旋转90°,记录结果,得到偏振度的值,此方法无法判断偏振模式,偏振片无法承受大功率激光,难以测试大功率半导体激光器的偏振度。 "Experimental Research on the Polarization Characteristics of Semiconductor Laser Array and Its Relationship with Stress" (Vol.36, No.5, May, 2009) in "China Laser" introduced a test method for the polarization characteristics of semiconductor laser arrays. The polarizer is irradiated on the CCD camera, the polarizer is rotated 90°, the result is recorded, and the value of the degree of polarization is obtained. This method cannot judge the polarization mode. The polarizer cannot withstand high-power lasers, and it is difficult to test the degree of polarization of high-power semiconductor lasers.

中华人民共和国国家知识产权局于2012年5月2号公开了公开号为CN 1024435422A的专利文献,名称为一种半导体激光器偏振测试系统。该系统对半导体激光器的激光进行压缩汇聚后通过偏振分光器件使P、S光分离,分光后的P、S方向上放置两个功率探测器探测功率。通过计算P、S功率比值,计算偏振值。 The State Intellectual Property Office of the People's Republic of China published a patent document whose publication number is CN 1024435422A on May 2, 2012, and the name is a semiconductor laser polarization test system. The system compresses and converges the laser light of the semiconductor laser, and then separates the P and S light through the polarization beam splitting device, and places two power detectors in the P and S directions after the light splitting to detect the power. Calculate the polarization value by calculating the ratio of P and S powers.

中华人民共和国国家知识产权局于2012年5月30号公开了公开号为CN 202255839U的专利文献,名称为一种半导体激光器偏振测试系统。该系统对半导体激光器的激光进行分光,95%的光经过偏振片-会聚压缩后用光电探测器和数字万用表探测功率,通过旋转偏振片,记录万用表最大值和最小值,计算偏振值;5%的光经过偏振分光棱镜,用放置在P、S方向的两组光电探测器和数据采集卡,采集并比较P、S功率,判断激光器的主偏模式。 The State Intellectual Property Office of the People's Republic of China published a patent document with the publication number CN 202255839U on May 30, 2012, titled a semiconductor laser polarization test system. The system splits the laser light of the semiconductor laser, and 95% of the light passes through the polarizer-convergence and compression, then detects the power with a photodetector and a digital multimeter, and records the maximum and minimum values of the multimeter by rotating the polarizer to calculate the polarization value; 5% The light passes through the polarization splitter prism, and two sets of photodetectors and data acquisition cards placed in the P and S directions are used to collect and compare the P and S powers to determine the main polarization mode of the laser.

以上两种方案中,第一种方案使用两个探测器探测P、S功率,难以消除两个探测器之间的误差;第二种方案,通过旋转偏振片,记录此过程中万用表的最大值和最小值,难以操作和自动化。 Among the above two schemes, the first scheme uses two detectors to detect P and S power, and it is difficult to eliminate the error between the two detectors; the second scheme records the maximum value of the multimeter during this process by rotating the polarizer and minimum, difficult to manipulate and automate.

实用新型内容 Utility model content

为解决上述问题,本实用新型的目的是提供一种简易自动化半导体激光器偏振测试系统,以快速、精确、自动化的测试并记录激光器的偏振值,可以适用于大批量半导体激光器产品的测试。 In order to solve the above problems, the purpose of this utility model is to provide a simple and automatic semiconductor laser polarization test system, which can test and record the polarization value of the laser quickly, accurately and automatically, and can be applied to the test of large quantities of semiconductor laser products.

样处理厂的告知系统为实现上述技术目的,达到上述技术效果,本实用新型通过以下技术方案实现: The notification system of the sample processing plant is to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect. The utility model is realized through the following technical solutions:

    一种简易自动化半导体激光器偏振测试系统,包括半导体激光器,所述半导体激光器出射端依次设置有组合光路、偏振棱镜和功率探测器,所述偏振棱镜通过皮带或齿轮传动与电机控制转动装置内的电机连接,所述电机控制转动装置包括所述电机和电机控制器,所述偏振棱镜通过限位开关与所述电机控制器连接,所述电机控制转动装置与所述功率探测器分别连接电脑。 A simple and automatic semiconductor laser polarization test system, including a semiconductor laser, the output end of the semiconductor laser is sequentially provided with a combined optical path, a polarizing prism and a power detector, and the polarizing prism is driven by a belt or a gear and the motor in the rotating device is controlled by a motor connected, the motor-controlled rotating device includes the motor and a motor controller, the polarizing prism is connected to the motor controller through a limit switch, and the motor-controlled rotating device is connected to a computer respectively with the power detector.

    进一步的,所述组合光路由多组非球面镜组合而成。 Further, the combined optical path is formed by combining multiple sets of aspheric mirrors.

    进一步的,所述偏振棱镜为偏振PBS立方体分光器。 Further, the polarizing prism is a polarizing PBS cube beam splitter.

    进一步的,所述电机控制转动装置还包括固定套件。      Further, the motor-controlled rotating device also includes a fixing kit. ``

本实用新型的有益效果是: The beneficial effects of the utility model are:

本实用新型操作简单,可避免不同探测器之间的误差,准确测量P、S方向功率值,即准确测量TM、TE两种激光模式的功率,棱镜固定装置带有90°限位,准确实现P、S分光的对应,即同一光束TM、TE两种模式的准确分离。 The utility model is simple to operate, can avoid errors between different detectors, and accurately measure the power values in the P and S directions, that is, accurately measure the power of the two laser modes of TM and TE. The correspondence of P and S splitting, that is, the accurate separation of the two modes of TM and TE of the same beam.

上述说明仅是本实用新型技术方案的概述,为了能够更清楚了解本实用新型的技术手段,并可依照说明书的内容予以实施,以下以本实用新型的较佳实施例并配合附图详细说明如后。本实用新型的具体实施方式由以下实施例及其附图详细给出。 The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back. The specific embodiment of the utility model is given in detail by the following examples and accompanying drawings.

附图说明 Description of drawings

图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.

    图中标号说明: Explanation of the labels in the figure:

    1、半导体激光器,2、组合光路,3、偏振棱镜,4、功率探测器,5、电机控制转动装置,6、皮带,7、限位开关,8、电脑,9、电机,10、电机控制器。 1. Semiconductor laser, 2. Combined optical path, 3. Polarizing prism, 4. Power detector, 5. Motor control rotating device, 6. Belt, 7. Limit switch, 8. Computer, 9. Motor, 10. Motor control device.

具体实施方式 Detailed ways

下面将参考附图并结合实施例,来详细说明本实用新型。 The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

    参见图1所示,一种简易自动化半导体激光器偏振测试系统, See Figure 1, a simple and automated semiconductor laser polarization test system,

包括半导体激光器1,所述半导体激光器1出射端依次设置有组合光路2、偏振棱镜3和功率探测器4,所述偏振棱镜3通过皮带6或齿轮传动与电机控制转动装置5内的电机9连接,所述电机控制转动装置5包括所述电机9和电机控制器10,所述偏振棱镜3通过限位开关7与所述电机控制器10连接,所述电机控制转动装置5与所述功率探测器4分别连接电脑8。 Comprising a semiconductor laser 1, the output end of the semiconductor laser 1 is sequentially provided with a combined optical path 2, a polarizing prism 3 and a power detector 4, and the polarizing prism 3 is connected to the motor 9 in the motor control rotating device 5 through a belt 6 or a gear transmission , the motor-controlled rotating device 5 includes the motor 9 and a motor controller 10, the polarizing prism 3 is connected to the motor controller 10 through a limit switch 7, and the motor-controlled rotating device 5 is connected to the power detection Device 4 is connected to computer 8 respectively.

    进一步的,所述组合光路2由多组非球面镜组合而成。 Further, the combined optical path 2 is composed of multiple sets of aspheric mirrors.

    进一步的,所述偏振棱镜3为偏振PBS立方体分光器,P偏振光透射,S偏振光反射。    Further, the polarizing prism 3 is a polarized PBS cube beam splitter, which transmits P-polarized light and reflects S-polarized light. the

    进一步的,所述电机控制转动装置5还包括固定套件。通过所述限位开关7产生开关信号,可停止所述电机9的转动,从而精确控制所述偏振棱镜3转动的角度为90°。 Further, the motor-controlled rotating device 5 also includes a fixing kit. The switch signal generated by the limit switch 7 can stop the rotation of the motor 9, thereby precisely controlling the rotation angle of the polarizing prism 3 to be 90°.

本实用新型的工作过程为: The working process of the present utility model is:

所述半导体激光器1所发出的光经过所述组合光路2后,会聚的光束入射到所述偏振棱镜3上,经过所述偏振棱镜3的激光入射进入所述功率探测器4的积分球,所述偏振棱镜3允许P偏振光通过,S偏振光反射,可知所述积分球表头采集到的TM模式功率值,旋转所述偏振棱镜3为90°,TE、TM模式相对棱镜交换,再次采集所述积分球读数,得到TE模式功率值,数据通过数据线传送到所述电脑8,通过所述电脑8上的软件对偏振值进行计算。 After the light emitted by the semiconductor laser 1 passes through the combined optical path 2, the converged light beam is incident on the polarizing prism 3, and the laser light passing through the polarizing prism 3 enters the integrating sphere of the power detector 4, so The polarizing prism 3 allows the P polarized light to pass through, and the S polarized light is reflected. It can be seen that the TM mode power value collected by the integrating sphere head is rotated to 90°, and the TE and TM modes are exchanged with respect to the prism, and are collected again The integrating sphere reads to obtain the TE mode power value, the data is transmitted to the computer 8 through the data line, and the polarization value is calculated by the software on the computer 8.

所述电机9带动所述偏振棱镜3转动过程: The motor 9 drives the polarizing prism 3 to rotate:

通过所述电机控制转动装置5控制所述电机9,通过所述皮带6或者齿轮传动带动所述偏振棱镜3旋转,通过所述偏振棱镜3套上的90°限位与所述限位开关7配合产生开关信号,此信号可通过所述电机控制转动装置5,停止所述电机9转动,从而精确控制所述偏振棱镜3转动角度为90°。 The motor 9 is controlled by the motor control rotating device 5, and the polarizing prism 3 is driven to rotate by the belt 6 or gear transmission, and the 90° limit on the polarizing prism 3 and the limit switch 7 are connected. Cooperate with generating a switch signal, which can control the rotating device 5 through the motor to stop the rotation of the motor 9, thereby precisely controlling the rotation angle of the polarizing prism 3 to be 90°.

    以上所述仅为实用新型的优选实施例而已,并不用于限制本实用新型,对于本领域的技术人员来说,本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。  The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model. the

Claims (4)

1.一种简易自动化半导体激光器偏振测试系统,包括半导体激光器,其特征在于:所述半导体激光器出射端依次设置有组合光路、偏振棱镜和功率探测器,所述偏振棱镜通过皮带或齿轮传动与电机控制转动装置内的电机连接,所述电机控制转动装置包括所述电机和电机控制器,所述偏振棱镜通过限位开关与所述电机控制器连接,所述电机控制转动装置与所述功率探测器分别连接电脑。 1. A kind of simple and easy automation semiconductor laser polarization testing system, comprises semiconductor laser, it is characterized in that: described semiconductor laser output end is provided with combination optical path, polarizing prism and power detector successively, described polarizing prism is driven by belt or gear and motor Control the motor connection in the rotating device, the motor controlling the rotating device includes the motor and the motor controller, the polarizing prism is connected with the motor controller through a limit switch, the motor controlling the rotating device is connected with the power detection connected to the computer respectively. 2.根据权利要求1所述的简易自动化半导体激光器偏振测试系统,其特征在于:所述组合光路由多组非球面镜组合而成。 2. The simple and automatic semiconductor laser polarization test system according to claim 1, characterized in that: the combined optical path is formed by combining multiple groups of aspheric mirrors. 3.根据权利要求1所述的简易自动化半导体激光器偏振测试系统,其特征在于:所述偏振棱镜为偏振PBS立方体分光器。 3. The simple and automatic semiconductor laser polarization testing system according to claim 1, characterized in that: the polarizing prism is a polarizing PBS cube beam splitter. 4.根据权利要求1所述的简易自动化半导体激光器偏振测试系统,其特征在于:所述电机控制转动装置还包括固定套件。 4. The simple and automatic semiconductor laser polarization testing system according to claim 1, characterized in that: the motor-controlled rotating device also includes a fixing kit.
CN201320397527.3U 2013-07-05 2013-07-05 Simple and automatic test system for polarization of semiconductor laser Expired - Fee Related CN203376144U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320397527.3U CN203376144U (en) 2013-07-05 2013-07-05 Simple and automatic test system for polarization of semiconductor laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320397527.3U CN203376144U (en) 2013-07-05 2013-07-05 Simple and automatic test system for polarization of semiconductor laser

Publications (1)

Publication Number Publication Date
CN203376144U true CN203376144U (en) 2014-01-01

Family

ID=49838668

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320397527.3U Expired - Fee Related CN203376144U (en) 2013-07-05 2013-07-05 Simple and automatic test system for polarization of semiconductor laser

Country Status (1)

Country Link
CN (1) CN203376144U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411752A (en) * 2013-07-05 2013-11-27 中国科学院苏州生物医学工程技术研究所 Simple and automated polarization test system of a semiconductor laser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411752A (en) * 2013-07-05 2013-11-27 中国科学院苏州生物医学工程技术研究所 Simple and automated polarization test system of a semiconductor laser

Similar Documents

Publication Publication Date Title
CN102435421A (en) Semiconductor laser polarization testing method and testing system thereof
CN107449758B (en) A high-efficiency diamond NV color center fluorescence collection device
CN103869265A (en) Atom magnetic sensor for optical pump magnetometer
CN201589659U (en) Optical Structure of Simultaneous Polarization Imaging Detection System
CN103411752A (en) Simple and automated polarization test system of a semiconductor laser
CN101344452A (en) Method and device for realizing polarization-sensitive optical time-domain reflectometry using piezoelectric ceramics
CN111812061A (en) Method and system for measuring refractive index
CN108398244A (en) A device for real-time measurement of fiber laser parameters based on tilted fiber gratings
CN203376144U (en) Simple and automatic test system for polarization of semiconductor laser
CN201382851Y (en) A high-precision testing device for characteristic parameters of liquid crystal spatial light modulator
CN201680848U (en) CCD fiber grating sensor demodulating system based on FPGA
CN104868355A (en) Power-stabilizing laser output device
CN104792703A (en) Laser multiple reflection photoacoustic spectroscopy technology-based aerosol optical absorption coefficient detection apparatus
CN107727911A (en) A kind of optical fiber current mutual inductor device and its current measuring method
CN203894154U (en) Device for testing spectrum magneto-optical Kerr effect by utilizing spectrometer
CN111856505A (en) LiDAR and LiDAR Systems
CN205081787U (en) Light module parameter testing arrangement
CN113042399B (en) Automatic performance detection and automatic sorting system for free space type optical isolator
CN103471815B (en) Method for simultaneously measuring reflectivity of S and P polarized light of high-reflection mirror
CN203489919U (en) Automatic acquisition instrument of wine brewing workshop environment data
CN104897368A (en) Real-time polarization maintaining fiber extinction ratio testing device
CN102721669A (en) Angle modulation type and wavelength modulation type combined multi-channel surface plasmon resonance (SPR) sensing system and detection method thereof
CN109827758B (en) Polarization extinction ratio testing system of polarization-maintaining passive device
CN202255840U (en) Semiconductor laser polarization test system
CN102261955A (en) Method for detecting polarization and spectral characteristics of light beam

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140101

Termination date: 20150705

EXPY Termination of patent right or utility model