公开(公告)号：US20090154512A1

公开(公告)日：2009-06-18

申请号：US12336081

申请日：2008-12-16

申请人： David Simons ,  Boris Kharlamov ,  James Wong ,  Vincent Issier ,  Andy Miller ,  James Nunley

发明人： David Simons ,  Boris Kharlamov ,  James Wong ,  Vincent Issier ,  Andy Miller ,  James Nunley

IPC分类号： H01S3/13

CPC分类号： G02B6/4206

摘要： A method for monitoring laser light launched into a core of a single mode fiber includes launching a portion of light directly into the cladding about the core. The cladding launched light is a known fraction of the core launched light and can be monitored by placing a detector about the cladding. Detected light including light that was launched into the cladding and has leaked through the cladding is used as a known fraction of light in the core and can be used to control the laser light source. This can be done with a straight section of single mode optical fiber and does not require bending the fiber. Advantageously, most of the core launched light remains in the core as guided light.

摘要翻译： 用于监测发射到单模光纤的芯中的激光的监测方法包括将一部分光直接引入围绕芯的包层内。 包层发射的光是核心发射光的已知部分，并且可以通过围绕包层放置检测器来监测。 检测到的光包括发射到包层中并已经通过包层泄漏的光被用作核心中已知的一部分光，并且可以用于控制激光源。 这可以通过单模光纤的直线部分完成，并且不需要弯曲光纤。 有利地，核心发射的光的大部分作为引导光保留在核心中。

公开(公告)号：US07957438B2

公开(公告)日：2011-06-07

申请号：US12336081

申请日：2008-12-16

申请人： David Simons ,  Boris Kharlamov ,  James Wong ,  Vincent Issier ,  Andy Miller ,  James Nunley

发明人： David Simons ,  Boris Kharlamov ,  James Wong ,  Vincent Issier ,  Andy Miller ,  James Nunley

IPC分类号： H01S3/13

CPC分类号： G02B6/4206

摘要： A method for monitoring laser light launched into a core of a single mode fiber includes launching a portion of light directly into the cladding about the core. The cladding launched light is a known fraction of the core launched light and can be monitored by placing a detector about the cladding. Detected light including light that was launched into the cladding and has leaked through the cladding is used as a known fraction of light in the core and can be used to control the laser light source. This can be done with a straight section of single mode optical fiber and does not require bending the fiber. Advantageously, most of the core launched light remains in the core as guided light.

摘要翻译： 用于监测发射到单模光纤的芯中的激光的监测方法包括将一部分光直接引入围绕芯的包层内。 包层发射的光是核心发射光的已知部分，并且可以通过围绕包层放置检测器来监测。 检测到的光包括发射到包层中并已经通过包层泄漏的光被用作核心中已知的一部分光，并且可以用于控制激光源。 这可以通过单模光纤的直线部分完成，并且不需要弯曲光纤。 有利地，核心发射的光的大部分作为引导光保留在核心中。

公开(公告)号：US20080137693A1

公开(公告)日：2008-06-12

申请号：US11944871

申请日：2007-11-26

申请人： Boris Kharlamov ,  Vincent Issier ,  Andy Miller

发明人： Boris Kharlamov ,  Vincent Issier ,  Andy Miller

IPC分类号： H01S3/109 ,  H01S3/067

CPC分类号： G02F1/353 ,  G02F2203/06

摘要： A harmonic frequency conversion module is disclosed including a polarization maintaining (PM) fiber optical link for providing an output stabilized from power fluctuation by the inclusion of one or more polarizers in the PM fiber optical link. Removing polarization distortions removes noise which has a significant negative effect on the output of harmonic frequency conversion elements. It has been found that the noise in frequency converted light has additional components, caused by mode interaction during conversion. In accordance with the present invention, we are able to remove the spikes in this noise, making it more stable and less dependent on external conditions. If the PM optical fiber route consists of multiple elements creating polarization distortions, a polarizer should be inserted between the most distorting element and the output of the fiber system. If many elements contribute to polarization distortions, several polarizers can be inserted into the system.

摘要翻译： 公开了一种谐波变频模块，其包括偏振维持（PM）光纤链路，用于通过在PM光纤链路中包含一个或多个偏振器来提供从功率波动稳定的输出。 去除极化失真会消除噪声，这对谐波变频元件的输出有显着的负面影响。 已经发现，频率转换光中的噪声具有由转换期间的模式相互作用引起的额外分量。 根据本发明，我们能够消除这种噪声中的尖峰，使其更加稳定，并且不太依赖于外部条件。 如果PM光纤路由由产生极化失真的多个元件组成，则偏振器应该插入在最畸变元件和光纤系统的输出之间。 如果许多元件有助于极化失真，则可以将几个偏振器插入系统。

公开(公告)号：US07907656B2

公开(公告)日：2011-03-15

申请号：US11944871

申请日：2007-11-26

申请人： Boris Kharlamov ,  Vincent Issier ,  Andy Miller

发明人： Boris Kharlamov ,  Vincent Issier ,  Andy Miller

IPC分类号： H01S3/08

CPC分类号： G02F1/353 ,  G02F2203/06

摘要： A harmonic frequency conversion module is disclosed including a polarization maintaining (PM) fiber optical link for providing an output stabilized from power fluctuation by the inclusion of one or more polarizers in the PM fiber optical link. Removing polarization distortions removes noise which has a significant negative effect on the output of harmonic frequency conversion elements. It has been found that the noise in frequency converted light has additional components, caused by mode interaction during conversion. In accordance with the present invention, we are able to remove the spikes in this noise, making it more stable and less dependent on external conditions. If the PM optical fiber route consists of multiple elements creating polarization distortions, a polarizer should be inserted between the most distorting element and the output of the fiber system. If many elements contribute to polarization distortions, several polarizers can be inserted into the system.

摘要翻译： 公开了一种谐波变频模块，其包括偏振维持（PM）光纤链路，用于通过在PM光纤链路中包含一个或多个偏振器来提供从功率波动稳定的输出。 去除极化失真会消除噪声，这对谐波变频元件的输出有显着的负面影响。 已经发现，频率转换光中的噪声具有由转换期间的模式相互作用引起的额外分量。 根据本发明，我们能够消除这种噪声中的尖峰，使其更加稳定，并且不太依赖于外部条件。 如果PM光纤路由由产生极化失真的多个元件组成，则偏振器应该插入在最畸变元件和光纤系统的输出之间。 如果许多元件有助于极化失真，则可以将几个偏振器插入系统。

公开(公告)号：US20080144678A1

公开(公告)日：2008-06-19

申请号：US11950869

申请日：2007-12-05

申请人： Haiping Lu ,  Vincent Issier ,  David Simons ,  Andy Miller

发明人： Haiping Lu ,  Vincent Issier ,  David Simons ,  Andy Miller

IPC分类号： H01S3/13 ,  G02F1/01

CPC分类号： G02F1/37

摘要： A method and circuit is disclosed for a laser system wherein the power of the laser signal is kept at a constant near optimum value and a portion of an frequency doubled output signal is monitored and detected so that noise within the frequency doubled output signal can be minimized. A feedback signal is used to dither the temperature of a frequency doubled crystal so as to minimize the noise in the frequency doubled output signal.

摘要翻译： 公开了一种用于激光系统的方法和电路，其中激光信号的功率保持在恒定的接近最佳值，并且监视和检测频率双倍的输出信号的一部分，使得倍频输出信号内的噪声可以最小化 。 使用反馈信号来抖动双倍晶振的温度，以便使倍频输出信号中的噪声最小化。

公开(公告)号：US07826502B2

公开(公告)日：2010-11-02

申请号：US11950869

申请日：2007-12-05

申请人： Haiping Lu ,  Vincent Issier ,  David Simons ,  Andy Miller

发明人： Haiping Lu ,  Vincent Issier ,  David Simons ,  Andy Miller

IPC分类号： H01S3/10

CPC分类号： G02F1/37

摘要： A method and circuit is disclosed for a laser system wherein the power of the laser signal is kept at a constant near optimum value and a portion of an frequency doubled output signal is monitored and detected so that noise within the frequency doubled output signal can be minimized. A feedback signal is used to dither the temperature of a frequency doubled crystal so as to minimize the noise in the frequency doubled output signal.

摘要翻译： 公开了一种用于激光系统的方法和电路，其中激光信号的功率保持在恒定的接近最佳值，并且监视和检测频率双倍的输出信号的一部分，使得倍频输出信号内的噪声可以最小化 。 使用反馈信号来抖动双倍晶振的温度，以便使倍频输出信号中的噪声最小化。

公开(公告)号：US20060039436A1

公开(公告)日：2006-02-23

申请号：US11012362

申请日：2004-12-15

申请人： Gang Lei ,  Charles Hulse ,  Vincent Issier ,  Richard Bradley, ,  Robert Waarts

发明人： Gang Lei ,  Charles Hulse ,  Vincent Issier ,  Richard Bradley, ,  Robert Waarts

IPC分类号： H01S3/09

CPC分类号： H01S3/09415 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/08036 ,  H01S3/08054 ,  H01S3/109 ,  H01S3/113

摘要： A diode-pumped laser with a direct edge coupling of a pump beam is provided. The laser includes a microchip laser cavity optically pumped by a laser diode emitting an astigmatic pump beam having a substantially elliptical beam cross-section at an output laser diode facet. The microchip laser cavity is disposed at a substantial distance exceeding 0.001″ from the laser diode pump where the astigmatic pump beam has a greatly reduced ellipticity, providing high laser output efficiency without coupling lens element between the laser cavity and the laser diode pump. The pumping arrangement is favourable for single-mode lasing. In some embodiments, the laser cavity includes nonlinear crystal for intra-cavity SHG, a saturable absorber for passive Q-switching and mode locking, and a polarizing prism.

摘要翻译： 提供了具有泵浦光束的直接边缘耦合的二极管泵浦激光器。 激光器包括由激光二极管光泵浦的微芯片激光器腔体，该激光二极管在输出激光二极管面处发射具有基本椭圆形光束横截面的像散泵浦光束。 微激光器激光腔设置在距离激光二极管泵超过0.001“的实质距离处，其中散光泵浦光束具有大大降低的椭圆率，在激光腔和激光二极管泵之间提供高激光输出效率而不耦合透镜元件。 泵浦装置有利于单模激光。 在一些实施例中，激光腔包括用于腔内SHG的非线性晶体，用于无源Q开关和模式锁定的可饱和吸收器和偏振棱镜。

公开(公告)号：US07260133B2

公开(公告)日：2007-08-21

申请号：US11012362

申请日：2004-12-15

申请人： Gang Lei ,  Charles Andy Hulse ,  Vincent Issier ,  Richard A. Bradley, Jr. ,  Robert G. Waarts

发明人： Gang Lei ,  Charles Andy Hulse ,  Vincent Issier ,  Richard A. Bradley, Jr. ,  Robert G. Waarts

IPC分类号： H01S3/09 ,  H01S3/091

CPC分类号： H01S3/09415 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/08036 ,  H01S3/08054 ,  H01S3/109 ,  H01S3/113

摘要： A diode-pumped laser with a direct edge coupling of a pump beam is provided. The laser includes a microchip laser cavity optically pumped by a laser diode emitting an astigmatic pump beam having a substantially elliptical beam cross-section at an output laser diode facet. The microchip laser cavity is disposed at a substantial distance exceeding 0.001″ from the laser diode pump where the astigmatic pump beam has a greatly reduced ellipticity, providing high laser output efficiency without coupling lens element between the laser cavity and the laser diode pump. The pumping arrangement is favourable for single-mode lasing. In some embodiments, the laser cavity includes nonlinear crystal for intra-cavity SHG, a saturable absorber for passive Q-switching and mode locking, and a polarizing prism.

摘要翻译： 提供了具有泵浦光束的直接边缘耦合的二极管泵浦激光器。 激光器包括由激光二极管光泵浦的微芯片激光器腔体，该激光二极管在输出激光二极管面处发射具有基本椭圆形光束横截面的像散泵浦光束。 微激光器激光腔设置在距离激光二极管泵超过0.001“的实质距离处，其中散光泵浦光束具有大大降低的椭圆率，在激光腔和激光二极管泵之间提供高激光输出效率而不耦合透镜元件。 泵浦装置有利于单模激光。 在一些实施例中，激光腔包括用于腔内SHG的非线性晶体，用于无源Q开关和模式锁定的可饱和吸收器和偏振棱镜。