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1. WO2020087871 - LASER LIGHT SOURCE

Publication Number WO/2020/087871
Publication Date 07.05.2020
International Application No. PCT/CN2019/081905
International Filing Date 09.04.2019
IPC
H01S 3/131 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
10Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
13Stabilisation of laser output parameters, e.g. frequency, amplitude
131by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
CPC
H01S 3/131
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
10Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
13Stabilisation of laser output parameters, e.g. frequency, amplitude
131by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
H01S 3/1317
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
10Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
13Stabilisation of laser output parameters, e.g. frequency, amplitude
131by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
1317by controlling the temperature
Applicants
  • 深圳技术大学 SHENZHEN TECHNOLOGY UNIVERSITY [CN]/[CN]
Inventors
  • 吴旭 WU, Xu
  • 杨志伟 YANG, Zhiwei
  • 阮双琛 RUAN, Shuangchen
Agents
  • 深圳市恒申知识产权事务所(普通合伙) HENSEN INTELLECTUAL PROPERTY FIRM
Priority Data
201811266829.029.10.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LASER LIGHT SOURCE
(FR) SOURCE DE LUMIÈRE LASER
(ZH) 一种激光光源
Abstract
(EN)
Disclosed in the present invention is a laser light source, relating to the technical field of lasers. The laser light source comprises: a control system module, a processor module, a pulse shaping and amplification module, a constant current source module, a coupling module, a temperature control module and a laser diode. The control system module generates a parameter adjustment signal according to preset laser parameters, and thus the processor module is able to generate an electrical pulse having specified parameters according to the parameter adjustment signal, and finally the laser diode generates an optical pulse having specified parameters according to the electrical pulse; the pulse shaping and amplification module is able to filter out noise in the electrical pulse and amplify the electrical pulse, so that the laser light source output power is stable, and the temperature control module is able to acquire the working temperature of the laser diode in real time, and control the working temperature of the laser diode to be maintained at a preset working temperature. The present laser light source has the advantages of real-time adjustment of optical pulse parameters, stable output power and low working temperature deviation.
(FR)
Source de lumière laser, se rapportant au domaine technique des lasers. La source de lumière laser comprend : un module de système de commande, un module de processeur, un module de mise en forme et d'amplification d'impulsion, un module de source de courant constant, un module de couplage, un module de régulation de température et une diode laser. Le module de système de commande génère un signal de réglage de paramètre en fonction de paramètres de laser prédéfinis, et ainsi le module de processeur peut générer une impulsion électrique ayant des paramètres spécifiés en fonction du signal de réglage de paramètre, et enfin, la diode laser génère une impulsion optique ayant des paramètres spécifiés en fonction de l'impulsion électrique; le module de mise en forme et d'amplification d'impulsion peut filtrer le bruit dans l'impulsion électrique et amplifier l'impulsion électrique, de telle sorte que la puissance de sortie de source de lumière laser est stable, et le module de régulation de température peut acquérir la température de travail de la diode laser en temps réel, et réguler la température de travail de la diode laser à maintenir à une température de travail prédéfinie. La présente source de lumière laser présente les avantages d'un réglage en temps réel de paramètres d'impulsion optique, d'une puissance de sortie stable et d'un faible écart de température de travail.
(ZH)
本发明公开了一种激光光源,涉及激光技术领域,该激光光源包括:控制系统模块、处理器模块、脉冲整形放大模块、恒流源模块、耦合模块、温度控制模块以及激光二极管。由于控制系统模块根据预设激光参数产生参数调节信号,处理器模块可以根据参数调节信号产生指定参数的电脉冲,最后由激光二极管根据电脉冲产生指定参数的光脉冲,其中脉冲整形放大模块可以对电脉冲中的噪声进行滤除,以及对电脉冲进行放大,使得激光光源输出稳定的功率,而温度控制模块可以实时采集激光二极管的工作温度,并控制激光二极管的工作温度保持在预设工作温度。本激光光源具有光脉冲参数实时调节、输出功率稳定以及工作温度偏移量低的优点。
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