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上海光源BL16B1：探索同步辐射光的奥秘一、光源简介上海光源BL16B1是我国同步辐射领域的重要科研设施之一，位于上海张江高科技园区。
作为第三代同步辐射光源，BL16B1以其高亮度、高稳定性、宽频谱范围等特点，为我国科学研究提供了强有力的技术支持。
二、同步辐射基本原理同步辐射是高速运动的电子在改变运动方向时发出的电磁辐射。
在同步辐射光源中，电子储存环是关键设施，它使电子在磁场中做圆周运动，并在特定的弯道处发出同步辐射光。
BL16B1正是利用这一原理，为科研人员提供了丰富的研究手段。
三、BL16B1线站特色1. 光束线特点：BL16B1光束线覆盖了从远红外到软X射线的波长范围，可满足不同领域的研究需求。
2. 实验站配置：BL16B1实验站配备了多种先进设备，如单晶衍射仪、粉末衍射仪、光谱仪等，为科研人员提供了丰富的实验手段。
3. 研究领域：BL16B1在材料科学、生命科学、环境科学、物理学等领域具有广泛的应用，为我国科技创新提供了有力支撑。
四、申请使用流程1. 注册账号：访问上海光源官方网站，注册账号并填写相关信息。
2. 提交申请：登录账号后，根据研究需求，在线填写实验申请表，并提交。
3. 审核通过：实验申请提交后，将由专家进行审核。
审核通过后，您将收到通知，并安排实验时间。
4. 实验准备：在实验前，请确保熟悉实验设备的使用方法，并与实验站工作人员沟通，确保实验顺利进行。
5. 实验开展：在规定时间内，携带样品前往BL16B1实验站，开展实验研究。
五、科研服务与支持1. 技术支持：BL16B1实验站配备了专业的技术团队，为用户提供全方位的技术支持和服务。
2. 培训与交流：定期举办用户培训、学术交流等活动，帮助用户提高实验技能，拓宽研究领域。
3. 数据服务：实验过程中产生的数据，将由专业人员进行处理和分析，为用户提供高质量的数据成果。
六、实验安全与规范1. 安全培训：在使用BL16B1之前，所有用户必须参加安全培训，了解实验过程中可能遇到的风险和应对措施，确保实验安全。
RPLIDAR A2 2017-05-15 rev.1.0Low Cost 360 Degree Laser Range ScannerIntroduction and DatasheetModel: A2M7A2M8OPTMAG 4KCONTENTS (1)INTRODUCTION (3)S YSTEM CONNECTION (4)M ECHANISM (5)S AFETY AND S COPE (6)D ATA O UTPUT (6)H IGH S PEED S AMPLING P ROTOCOL AND C OMPATIBILITY (7)A PPLICATION S CENARIOS (8)SPECIFICATION (9)M EASUREMENT P ERFORMANCE (9)L ASER P OWER S PECIFICATION (9)O PTICAL W INDOW (10)C OORDINATE S YSTEM D EFINITION OF S CANNING D ATA (10)C OMMUNICATION INTERFACE (11)MISC (14)SELF-PROTECTION AND STATUS DETECTION (15)SDK AND SUPPORT (16)MECHANICAL DIMENSIONS (17)REVISION HISTORY (18)APPENDIX (19)I MAGE AND T ABLE I NDEX (19)The RPLIDAR A2 is the next generation low cost 360 degree 2D laser scanner (LIDAR) solution developed by SLAMTEC. It can take up to 4000 samples of laser ranging per second with high rotation speed. And equipped with SLAMTEC patented OPTMAG technology, it breakouts the life limitation of traditional LIDAR system so as to work stably for a long time.The system can perform 2D 360-degree scan within a 8-meter range. The generated 2D point cloud data can be used in mapping, localization and object/environment modeling.The typical scanning frequency of the RPLIDAR A2 is 10hz (600rpm). Under this condition, the resolution will be 0.9°. And the actual scanning frequency can be freely adjusted within the 5-15hz range according to the requirements of users.The RPLIDAR A2 adopts the low-cost laser triangulation measurement system developed by SLAMTEC, which makes the RPLIDAR A2 has excellent performance in all kinds of indoor environment and outdoor environment without direct sunlight exposure. Meanwhile, before leaving the factory, every RPLIDAR A2 has passed the strict testing to ensure the laser output power meet the standards of FDA Class I.System connectionThe RPLIDAR A2 consists of a range scanner core and the mechanical powering part which makes the core rotate at a high speed. When it functions normally, the scanner will rotate and scan clockwise. And users can get the range scan data via the communication interface of the RPLIDAR and control the start, stop and rotating speed of the rotate motor via PWM.Range Scanner CoreCommunication andPower Interface MechanicalPowering PartFigure 1-1 RPLIDAR System CompositionThe RPLIDAR A2 comes with a rotation speed detection and adaptive system. The system will adjust the angular resolution automatically according to the actual rotating speed. And there is no need to provide complicated power system for RPLIDAR. In this way, the simple power supply schema saves the BOM cost. If the actual speed of the RPLIDAR is required, the host system can get the related data via communication interface.The detailed specification about power and communication interface can be found in the following sections.MechanismThe RPLIDAR A2 is based on laser triangulation ranging principle and adopts the high-speed vision acquisition and processing hardware developed by SLAMTEC. The system ranges more than 4000 times per second.dFigure 1-2 The RPLIDAR Working SchematicDuring every ranging process, the RPLIDAR emits modulated infrared laser signal and the laser signal is then reflected by the object to be detected. The returning signal is then sampled by vision acquisition system in RPLIDAR and the DSP embedded in RPLIDAR starts processing the sample data and outputs distance value and angle value between object and RPLIDAR via communication interface.When drove by the motor system, the range scanner core will rotate clockwise and perform the 360-degree scan for the current environment.Figure 1-3 The Obtained Environment Map from RPLIDAR ScanningSafety and ScopeThe RPLIDAR A2 system uses a low power infrared laser as its light source, and drives it by using modulated pulse. The laser emits light in a very short time frame which can ensure its safety to human and pet, and it reaches Class I laser safety standard.The modulated laser can effectively avoid the interference from ambientlight and sunlight during ranging scanning process, which makes RPLIDAR work excellent in all kinds of indoor environment and outdoor environment without sunlight.Data OutputDuring the working process, the RPLIDAR will output the sampling data via the communication interface. And each sample point data contains the information in the following table. If you need detailed data format and communication protocol, please contact SLAMTEC.*Note ：The LIDAR scan image is not directly relative to the environment showed here. Illustrative purpose only.Class IFigure 1-4 The RPLIDAR Sample Point Data InformationFigure 1-5 The RPLIDAR Sample Point Data FramesThe RPLIDAR outputs sampling data continuously and it contains the sample point data frames in the above figure. Host systems can configure output format and stop RPLIDAR by sending stop command. For detailed operations please contact SLAMTEC.High Speed Sampling Protocol and CompatibilityThe RPLIDAR A2 adopts the newly extended high speed sampling protocol for outputting the 4000 times per second laser range scan data. Users are required to update the matched SDK or modify the original driver and use the new protocol to use the 4000 times per second mode of RPLIDAR A2. Please check the related protocol documents for details.The RPLIDAR A2 is compatible with all the communication protocols of previous versions. Users can directly replace the previous RPLIDAR with RPLIDAR A2 and use it in the original system. But in this scenario, the RPLIDAR A2 will work in compatible mode and the system will take range 2000 times per second.Data TypeUnitDescriptionDistance mm Current measured distance value between the rotating core of the RPLIDAR and the sampling point Heading degree Current heading angle of the measurement Start Flag (Bool) Flag of a new scanChecksumThe Checksum of RPLIDAR return data…(d ሾn −1ሿ,θሾn −1ሿ)(d ሾn ሿ,θሾn ሿ) (d ሾ0ሿ,θሾ0ሿ) (d ሾ1ሿ,θሾ1ሿ)…Start FlagA new scanApplication ScenariosThe RPLIDAR can be used in the following application scenarios:o General robot navigation and localizationo Environment scanning and 3D re-modelingo Service robot or industrial robot working for long hourso Home service /cleaning robot navigation and localization o General simultaneous localization and mapping (SLAM)o Smart toy’s localization and obstacle avoidanceMeasurement Performance●For Model A2M7/A2M8 OnlyFigure 2-1 RPLIDAR PerformanceNote: the triangulation range system resolution changes along with distance. Laser Power SpecificationFigure 2-2 RPLIDAR Optical SpecificationNote: the laser power listed above is the peak power and the actual average power is much lower than the value.Optical WindowTo make the RPLIDAR A2 working normally, please ensure proper space to be left for its emitting and receiving laser lights when designing the host system. The obscuring of the host system for the ranging window will impact the performance and resolution of RPLIDAR A2. If you need cover the RPLIDAR A2 with translucent materials or have other special needs, please contact SLAMTEC about the feasibility.Optical WindowFigure 2-3 RPLIDAR Optical WindowYou can check the Mechanical Dimensions chapter for detailed window dimensions.Coordinate System Definition of Scanning DataThe RPLIDAR A2 adopts coordinate system of the left hand. The dead ahead of the sensors is the x axis of the coordinate system; the origin is the rotating center of the range scanner core. The rotation angle increases as rotating clockwise. The detailed definition is shown in the following figure:Figure 2-4 RPLIDAR Scanning Data Coordinate System DefinitionCommunication interfaceThe RPLIDAR A2 uses separate 5V DC power for powering the range scanner core and the motor system. And the standard RPLIDAR A2 uses XH2.54-5P male socket. Detailed interface definition is shown in the following figure:Figure 2-5 RPLIDAR Power Interface Definitionθ ሾ0,360)Interface LeadRedXH2.54-5PVCCTXRXGND MOTOCTLFigure 2-6 RPLIDAR External Interface Signal DefinitionPower Supply InterfaceRPLIDAR A2 takes the only external power to power the range scanner core and the motor system which make the core rotate. To make the RPLIDAR A2 work normally, the host system needs to ensure the output of the power and meet its requirements of the power supply ripple.Figure 2-7 RPLIDAR Power Supply SpecificationData communication interfaceThe RPLIDAR A2 takes the 3.3V-TTL serial port (UART) as the communication interface. The table below shows the transmission speed and the protocol standard.Figure 2-8 RPLIDAR Serial Port Interface SpecificationsNote: the RX input signal of A2M4 is current control type. In order to ensure the reliable signal identification inside the system, the actual control node voltage of this pin will not be lower than 1.6v.Scanner Motor ControlThe RPLIDAR A2 is embedded with a motor driver which has speed tuning feature. Users can control the start, the stop and the rotating speed for the motor via MOTOCTL in the interface. MOTOCTL can be supplied using PWM signal with special frequency and duty cycle, and in this mode, the rotating speed is decided by the duty cycle of the input MOTOCTL PWM Signal.The following table describes the requirement for the input PWM signal of MOTOCTL:Figure 2-9 RPLIDA Specification for PWM Signal of MOTOCTLNote: the typical value is tested when the scanner rotating frequency is 10Hz. With the same rotating speed, the PWM duty cycle of every RILIDAR A2 may vary slightly. If a precise rotating speed is required, users can perform a closed-loop control.If the host system only need to control the start and stop of the motor, please use the direct current signal in high level and low level to drive MOTOCTL. Under this condition, when the MOTOCTL is the low level signal, the RPLIDAR A2 will stop rotating and scanning; when the MOTOCTL is the high level signal, the RPLIDAR A2 will rotated at the highest speed.MISCFor Model A2M7/A2M8 OnlyFigure 2-10 RPLIDAR MISC SpecificationTo ensure the laser of RPLIDAR always working in the safety range (<3mW) and avoid any other damage caused by device, the RPLIDAR comes with laser power detection and sensor healthy check feature. It will shut down the laser and stop working automatically when any of the following errors has been detected.o Laser transmit power exceeds limited valueo Laser cannot power on normallyo Scan speed of Laser scanner system is unstableo Scan speed of Laser scanner system is too slowo Laser signal sensor works abnormallyThe host systems can check the status of the RPLIDAR via the communication interface and restart the RPLIDAR to try to recover work from error.SLAMTEC provides debug GUI tool and SDK (available for Windows, x86 Linux and Arm Linux) to speed up the product development for users. Please contact SLAMTEC for detail information.Figure 4-1 the Debugging GUI of RPLIDARThe mechanical dimensions of the RPLIDAR A2 are shown as below:Figure 5-1 RPLIDAR Mechanical DimensionsNote: the 4 M3 screws in the bottom should be no longer than 4mm, or the internal module would be damaged.Image and Table IndexF IGURE 1-1RPLIDAR S YSTEM C OMPOSITION (4)F IGURE 1-2T HE RPLIDAR W ORKING S CHEMATIC (5)F IGURE 1-3T HE O BTAINED E NVIRONMENT M AP FROM RPLIDAR S CANNING (6)F IGURE 1-4T HE RPLIDAR S AMPLE P OINT D ATA I NFORMATION (7)F IGURE 1-5T HE RPLIDAR S AMPLE P OINT D ATA F RAMES (7)F IGURE 2-1RPLIDAR P ERFORMANCE (9)F IGURE 2-2RPLIDAR O PTICAL S PECIFICATION (9)F IGURE 2-3RPLIDAR O PTICAL W INDOW (10)F IGURE 2-4RPLIDAR S CANNING D ATA C OORDINATE S YSTEM D EFINITION (11)F IGURE 2-5RPLIDAR P OWER I NTERFACE D EFINITION (11)F IGURE 2-6RPLIDAR E XTERNAL I NTERFACE S IGNAL D EFINITION (12)F IGURE 2-7RPLIDAR P OWER S UPPLY S PECIFICATION (12)F IGURE 2-8RPLIDAR S ERIAL P ORT I NTERFACE S PECIFICATIONS (13)F IGURE 2-9RPLIDA S PECIFICATION FOR PWM S IGNAL OF MOTOCTL (14)F IGURE 2-10RPLIDAR MISC S PECIFICATION (14)F IGURE 4-1 THE D EBUGGING GUI OF RPLIDAR (16)F IGURE 5-1RPLIDAR M ECHANICAL D IMENSIONS (17)。
SK-A100激光测距传感器用户手册上海申稷光电科技有限公司Shanghai SenkyLaser Photoelectric Technology Co. LTD 版本：V2.0 日期：2021.1.4Version: V2.0 Date: 2021.1.4说明本文档用于指导用户使用SK-A100测距激光雷达。
文中介绍了产品性能、结构尺寸、通讯协议以及使用是注意的事项。
本文的解释权归上海申稷光电科技有限公司所有。
本文档可能与所销售最新产品版本存在差异，具体以销售工程师提供的解释为准。
文档中如果存在不清楚的地方，请联系对应销售，或者联系邮箱*****************.目录1.产品概述Product overview (4)2.性能参数 Performance parameters (5)3.关键指标Key index (6)4.机械参数Mechanical parameters (7)5.输出接口Output interface (8)6.通讯协议Communication protocol (9)RS232通讯协议 (9)RS485 自由协议 (10)RS485 RTU标准协议 (13)电流环4-20mA (13)0-5V电压信号 (13)7.注意事项Matters needing attention (14)7.1影响因素 Influence Factor (14)7.2安全注意事项 Safety Precautions (15)8.上位机调试指南Debugging guide (16)1.产品概述Product overviewSK-A100激光测距传感器采用激光相位法测距原理。
可以通过激光的发射和接收，以非接触方式快速而准确的测量到自然目标之间的距离值。
将SK-A100激光测距传感器固定一个位置，开始工作后，可以快速发射一束可见红色激光，测到目标物后激光漫反射信号被传感器接收镜头接收信号；光速一定的前提下，相位法精确计算发射接收的时间差，即刻快速获取目标物到传感器之间的距离值。
2μm单纵模全固态脉冲激光技术研究进展(封面文章特邀)颜秉政;穆西魁;安嘉硕;齐瑶瑶;丁洁;白振旭;王雨雷;吕志伟【期刊名称】《红外与激光工程》【年(卷),期】2024(53)2【摘要】2μm激光属于人眼安全波段,具有高大气透过率和水吸收特性,能覆盖CO_(2)等温室气体的吸收峰,因此在大气环境监测、光通信、激光雷达、材料加工、医疗手术等领域有广泛应用。
其中,单纵模运转的全固态2μm脉冲激光器以其高稳定性、窄线宽和优良的光束质量等优势,可作为多普勒测风、相干差分吸收等激光雷达应用的优质光源,在工业、国防和科研等领域具有重要意义。
目前,实现2μm激光输出的主要方法有光参量技术和直接泵浦法。
相比光参量技术,直接泵浦法更具高效率、可调节性和集成性等优点,已成为2μm全固态激光的主流方式。
文中总结了常用的2μm固体激光增益介质,分析了空间结构振荡器单纵模选择的原理和特点,综述了2μm单纵模全固态脉冲激光的研究进展,并对不同结构激光器的输出特性进行了比较,最后对2μm单纵模全固态脉冲激光的发展前景进行了展望。
【总页数】16页(P1-16)【作者】颜秉政;穆西魁;安嘉硕;齐瑶瑶;丁洁;白振旭;王雨雷;吕志伟【作者单位】河北工业大学先进激光技术研究中心;河北省先进激光技术与装备重点实验室【正文语种】中文【中图分类】TN248.1【相关文献】1.单纵模调Q脉冲光纤激光器研究进展2.高功率克尔透镜锁模掺镱全固态激光器研究进展(特邀)3.被动锁模超短脉冲光纤激光器研究进展(特邀)4.全固态单频连续波宽调谐钛宝石激光器研究进展(特邀)5.单纵模激光器强度噪声抑制技术研究进展因版权原因，仅展示原文概要，查看原文内容请购买。
(19)中华人民共和国国家知识产权局(12)发明专利申请(10)申请公布号 (43)申请公布日 (21)申请号 201810086712.8(22)申请日 2018.01.30(71)申请人 上海以众科技有限公司地址 201807 上海市嘉定区工业区汇源路55号8幢3层J793室(72)发明人 尤科伟 唐顺兴 (74)专利代理机构 上海容慧专利代理事务所(普通合伙) 31287代理人 于晓菁(51)Int.Cl.G02B 6/42(2006.01)G02B 27/28(2006.01)G02B 7/00(2006.01)(54)发明名称一种高功率激光系统模拟光光源及激光系统(57)摘要本发明涉及一种高功率激光系统模拟光光源及激光系统，模拟光光源包括激光器、扩束准直器、衰减及控制器、光束控制引导器和光束耦合器，光束控制引导器包括同光轴依次设置的多级分光控制模块和反射镜，激光器发射出的光束依次经过扩束准直器、衰减及控制器、多级分光控制模块中的至少一级分光控制模块后进入光束耦合器，或者激光器发射出的光束依次经过扩束准直器、衰减及控制器、多级分光控制模块中的至少一级分光控制模块和反射镜后进入光束耦合器。
本发明在模拟光光源实现中，完全摈弃了“分光”的工作方式，采用“多路复用”的工作方式，只需要一台Pmw的激光器就可以提供N路光束使用，从而节约了造价成本。
权利要求书1页 说明书3页 附图1页CN 110095843 A 2019.08.06C N 110095843A1.一种高功率激光系统模拟光光源，其特征在于，包括激光器、扩束准直器、衰减及控制器、光束控制引导器和光束耦合器，所述光束控制引导器包括同光轴依次设置的多级分光控制模块和反射镜，所述激光器发射出的光束依次经过所述扩束准直器、所述衰减及控制器、多级所述分光控制模块中的至少一级分光控制模块后进入所述光束耦合器，或者所述激光器发射出的光束依次经过所述扩束准直器、所述衰减及控制器、多级所述分光控制模块中的至少一级分光控制模块和所述反射镜后进入所述光束耦合器。
