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公开(公告)号：US09685755B2
公开(公告)日：2017-06-20
申请号：US14384353
申请日：2012-03-13
IPC分类号： H01S5/062 , H01S3/137 , H01S3/0941 , H01S5/026 , H01S5/0683 , H01S5/0687 , H01S5/068 , H01S3/131 , H01S3/16 , H01S5/00 , H01S5/06 , H01S5/10 , H01S5/125 , H01S5/22
CPC分类号： H01S3/137 , H01S3/09415 , H01S3/1312 , H01S3/1625 , H01S3/1636 , H01S5/0064 , H01S5/0092 , H01S5/0265 , H01S5/0617 , H01S5/0624 , H01S5/06804 , H01S5/0683 , H01S5/0687 , H01S5/1014 , H01S5/125 , H01S5/22 , H01S2301/02
摘要： A method of controlling beam quality and stability of a laser apparatus, the laser apparatus comprising, a diode laser (10) providing first radiation of at least a first wavelength, and a frequency conversion unit (12) configured to frequency-convert the first radiation from the diode laser and to output the frequency-converted radiation (213), the frequency-converted radiation having at least a second wavelength different from the first wavelength, the diode laser (10) comprising at least a first and a second section (222,223), a first contact (220) for injecting a first current (I1) into the first section (222), a second contact (221) for injecting a second current (I2) into the second section (223), and means for controlling a temperature of the diode laser; wherein the method comprises monitoring a first parameter indicative of the power content of a dominant lobe of the first radiation; iteratively determining a combination of respective values of the first current, the second current and the temperature at which combination of respective values the monitored first parameter and a stability parameter indicative of a fluctuation over time of the monitored first parameter each fulfills a respective predetermined optimization criterion; and setting the first current, the second current, and the temperature to the determined combination of respective values.
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公开(公告)号：US20150092801A1
公开(公告)日：2015-04-02
申请号：US14384353
申请日：2012-03-13
IPC分类号： H01S3/137
CPC分类号： H01S3/137 , H01S3/09415 , H01S3/1312 , H01S3/1625 , H01S3/1636 , H01S5/0064 , H01S5/0092 , H01S5/0265 , H01S5/0617 , H01S5/0624 , H01S5/06804 , H01S5/0683 , H01S5/0687 , H01S5/1014 , H01S5/125 , H01S5/22 , H01S2301/02
摘要： A method of controlling beam quality and stability of a laser apparatus, the laser apparatus comprising, a diode laser (10) providing first radiation of at least a first wavelength, and a frequency conversion unit (12) configured to frequency-convert the first radiation from the diode laser and to output the frequency-converted radiation (213), the frequency-converted radiation having at least a second wavelength different from the first wavelength, the diode laser (10) comprising at least a first and a second section (222,223), a first contact (220) for injecting a first current (I1) into the first section (222), a second contact (221) for injecting a second current (I2) into the second section (223), and means for controlling a temperature of the diode laser; wherein the method comprises monitoring a first parameter indicative of the power content of a dominant lobe of the first radiation; iteratively determining a combination of respective values of the first current, the second current and the temperature at which combination of respective values the monitored first parameter and a stability parameter indicative of a fluctuation over time of the monitored first parameter each fulfils a respective predetermined optimization criterion; and setting the first current, the second current, and the temperature to the determined combination of respective values.
摘要翻译： 一种控制激光装置的光束质量和稳定性的方法，所述激光装置包括：提供至少第一波长的第一辐射的二极管激光器（10）和被配置为对第一辐射进行频率转换的频率转换单元 所述二极管激光器（10）至少包括第一和第二部分（222,223），所述二极管激光器（10）包括至少第一和第二部分（222,223），所述二极管激光器 ），用于将第一电流（I1）注入到第一部分（222）中的第一触点（220），用于将第二电流（I2）注入到第二部分（223）中的第二触点（221） 二极管激光器的温度; 其中所述方法包括监测指示所述第一辐射的显性凸角的功率含量的第一参数; 迭代地确定第一电流，第二电流和温度的组合的组合，其中监测的第一参数和指示所监测的第一参数随时间的波动的稳定性参数的各个值的组合各自满足相应的预定优化标准 ; 以及将所述第一电流，所述第二电流和所述温度设置为所确定的相应值的组合。
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公开(公告)号：US20130208746A1
公开(公告)日：2013-08-15
申请号：US13819812
申请日：2011-09-14
IPC分类号： H01S5/068
CPC分类号： H01S5/06817 , H01S3/09415 , H01S5/0092 , H01S5/02469 , H01S5/0265 , H01S5/0683 , H01S5/1014 , H01S5/4012 , H01S2301/02
摘要： The present invention relates to an apparatus comprising a diode laser (10) providing radiation in a first wavelength interval, a radiation conversion unit (12) having an input and an output, the radiation converter configured to receive the radiation in the first wavelength interval from the diode laser at the input, the radiation conversion unit configured to convert the radiation in the first wavelength interval to radiation in a second wavelength interval and the output configured to output the converted radiation, the second wavelength interval having one end point outside the first wavelength interval. Further, the invention relates to a method of optically pumping a target laser (14) in a laser system, the laser system comprising a laser source providing radiation at a first frequency, the laser source being optically connected to an input of a frequency converter, the frequency converter configured to convert the radiation at the first frequency to a second, different frequency, the target laser arranged in optical communication with an output of the frequency converter, the method comprising the steps of emitting radiation from the laser source, receiving the radiation at the frequency converter, converting the radiation from the first frequency to the second frequency in the frequency converter, and providing the radiation at the second frequency at the target laser so that the target laser is optically pumped.
摘要翻译： 本发明涉及一种包括提供第一波长间隔的辐射的二极管激光器（10）的设备，具有输入和输出的辐射转换单元（12），该辐射转换器被配置为接收第一波长间隔中的辐射 在输入处的二极管激光器，所述辐射转换单元被配置为将第一波长间隔中的辐射转换成第二波长间隔的辐射，并且被配置为输出转换的辐射的输出，所述第二波长间隔具有在第一波长之外的一个端点 间隔。 此外，本发明涉及一种在激光系统中光学泵浦目标激光器（14）的方法，所述激光系统包括提供第一频率的辐射的激光源，所述激光源光学连接到变频器的输入端， 所述变频器被配置为将所述第一频率的辐射转换为第二不同频率，所述目标激光器被布置成与所述变频器的输出光学通信，所述方法包括以下步骤：从所述激光源发射辐射，接收所述辐射 在频率转换器中，将频率转换器中的第一频率的辐射转换为第二频率，并且在目标激光器处以第二频率提供辐射，使得目标激光器被光泵浦。
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4.发明授权公开(公告)号：US07130060B2
公开(公告)日：2006-10-31
申请号：US11070273
申请日：2005-03-03
IPC分类号： G01B9/02
CPC分类号： G01N21/45
摘要： A method and an apparatus for absolute refractive index measurements are disclosed, wherein a beam of spatially coherent laser light is directed perpendicularly on to a side of a capillary tube (12) and back reflected light is detected (16) over a range of angles (22) with respect to the incident light beam. The refractive index of a liquid contained in the capillary is determined from the angle at which a marked change in the intensity of the interference fringes of the interference pattern formed by said back reflected light is observed or from the amplitude of a low frequency component of the angular variation of the intensity of interference fringes.
摘要翻译： 公开了一种用于绝对折射率测量的方法和装置，其中空间相干激光束垂直地指向毛细管（12）的一侧，并且在角度范围（16）上检测（16）反射的反射光 22）相对于入射光束。 包含在毛细管中的液体的折射率由观察到由所述背反射光形成的干涉图案的干涉条纹的强度的显着变化的角度或从所述背景反射光的低频分量的振幅的角度确定 干涉条纹强度的角度变化。
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公开(公告)号：US08670474B2
公开(公告)日：2014-03-11
申请号：US13819812
申请日：2011-09-14
IPC分类号： H01S3/00
CPC分类号： H01S5/06817 , H01S3/09415 , H01S5/0092 , H01S5/02469 , H01S5/0265 , H01S5/0683 , H01S5/1014 , H01S5/4012 , H01S2301/02
摘要： The present invention relates to an apparatus comprising a diode laser (10) providing radiation in a first wavelength interval, a radiation conversion unit (12) having an input and an output, the radiation converter configured to receive the radiation in the first wavelength interval from the diode laser at the input, the radiation conversion unit configured to convert the radiation in the first wavelength interval to radiation in a second wavelength interval and the output configured to output the converted radiation, the second wavelength interval having one end point outside the first wavelength interval. Further, the invention relates to a method of optically pumping a target laser (14) in a laser system, the laser system comprising a laser source providing radiation at a first frequency, the laser source being optically connected to an input of a frequency converter, the frequency converter configured to convert the radiation at the first frequency to a second, different frequency, the target laser arranged in optical communication with an output of the frequency converter, the method comprising the steps of emitting radiation from the laser source, receiving the radiation at the frequency converter, converting the radiation from the first frequency to the second frequency in the frequency converter, and providing the radiation at the second frequency at the target laser so that the target laser is optically pumped.
摘要翻译： 本发明涉及一种包括提供第一波长间隔的辐射的二极管激光器（10）的设备，具有输入和输出的辐射转换单元（12），该辐射转换器被配置为接收第一波长间隔中的辐射 在输入处的二极管激光器，所述辐射转换单元被配置为将第一波长间隔中的辐射转换成第二波长间隔的辐射，并且被配置为输出转换的辐射的输出，所述第二波长间隔具有在第一波长之外的一个端点 间隔。 此外，本发明涉及一种在激光系统中光学泵浦目标激光器（14）的方法，所述激光系统包括提供第一频率的辐射的激光源，所述激光源光学连接到变频器的输入端， 所述变频器被配置为将所述第一频率的辐射转换为第二不同频率，所述目标激光器被布置成与所述变频器的输出光学通信，所述方法包括以下步骤：从所述激光源发射辐射，接收所述辐射 在频率转换器中，将频率转换器中的第一频率的辐射转换为第二频率，并且在目标激光器处以第二频率提供辐射，使得目标激光器被光泵浦。
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