Multi-element monolithic solid state laser
    2.
    发明授权
    Multi-element monolithic solid state laser 失效
    多元件单片固体激光器

    公开(公告)号:US5651022A

    公开(公告)日:1997-07-22

    申请号:US577424

    申请日:1995-12-22

    摘要: A monolithic solid state laser structure is used to construct erbium lasers that are insensitive to external pressure changes and vibrations, and have improved cooling of the gain medium and reduced thermal lensing effect. In the monolithic laser structure, the gain medium is separated from an optically transmissive plate on one side and a wave plate on the other side by spacers to form narrow air gaps which provide effective cooling of the gain medium and reduced the thermal lensing effect. Such an arrangement is further combined with a pressure-insensitive Brewster polarizer, such as a solid Brewster polarizer or a pressure-sealed Brewster plate, to form a pressure-insensitive laser cavity. The wave plate cooperates with the Brewster polarizer to select the wavelength of the solid state laser.

    摘要翻译: 采用单片固体激光器结构,对外部压力变化和振动不敏感的铒激光器,增强介质的冷却和热透镜效应的降低。 在单片激光器结构中,增益介质通过间隔物从一侧的光学透射板和另一侧的波片分离,以形成狭窄的空气间隙,从而有效地冷却增益介质并降低热透镜效应。 这种布置进一步与不受压力的布鲁斯特偏振器(例如,布氏体偏振器或压力密封布鲁斯特板)组合以形成不敏感的激光腔。 波片与布鲁斯特偏振器配合选择固态激光器的波长。

    Optical power and wavelength monitor
    3.
    发明授权
    Optical power and wavelength monitor 有权
    光功率和波长监视器

    公开(公告)号:US06587214B1

    公开(公告)日:2003-07-01

    申请号:US09603403

    申请日:2000-06-26

    申请人: Timothy C. Munks

    发明人: Timothy C. Munks

    IPC分类号: G01B902

    摘要: An optical power and wavelength monitor of an optical beam is described. The monitor includes a first detector positioned in the path of the optical beam that generates a first electrical signal that is proportional to an optical power of the optical beam. The monitor also includes an optical filter that is positioned in the path of the optical beam. The optical filter transmits a portion of the optical beam having a wavelength within a bandwidth of the optical filter. A second detector that is positioned in the path of the optical beam generates a second electrical signal that is proportional to an optical power of the filtered optical beam. A signal processor receives the first and second electrical signals and generates a signal that is proportional to the wavelength of the optical beam.

    摘要翻译: 描述光束的光功率和波长监视器。 监视器包括位于光束路径中的第一检测器,其产生与光束的光功率成比例的第一电信号。 监视器还包括位于光束路径中的滤光器。 滤光器透射具有在滤光器的带宽内的波长的光束的一部分。 位于光束路径中的第二检测器产生与经过滤光束的光功率成比例的第二电信号。 信号处理器接收第一和第二电信号并产生与光束的波长成比例的信号。

    Optical digital external modulator
    4.
    发明授权
    Optical digital external modulator 失效
    光数字外部调制器

    公开(公告)号:US06961166B2

    公开(公告)日:2005-11-01

    申请号:US10852704

    申请日:2004-05-24

    摘要: An optical digital external modulator having a cascaded arrangement of interferometers is provided. The optical modulator includes an electrode structure for applying an electric field to each interferometer in the cascade and biasing circuitry coupled to the electrode structure for biasing each interferometer at a predetermined bias point. In particular, each predetermined bias point is selected to be above quadrature and for providing improved transmission performance of digital data signals. Preferably, the modulator has a reflective design that helps to increase the modulation bandwidth, lower the drive voltage, and reduce size.

    摘要翻译: 提供具有级联的干涉仪布置的光学数字外部调制器。 光学调制器包括用于对级联中的每个干涉仪施加电场的电极结构和耦合到电极结构的偏置电路,用于以预定的偏压点偏置每个干涉仪。 特别地,每个预定偏置点被选择为高于正交并且用于提供数字数据信号的改进的传输性能。 优选地,调制器具有有助于增加调制带宽,降低驱动电压和减小尺寸的反射设计。

    Interference filter for optical telecommunication
    5.
    发明授权
    Interference filter for optical telecommunication 有权
    光通信用干扰滤波器

    公开(公告)号:US06842287B2

    公开(公告)日:2005-01-11

    申请号:US10320972

    申请日:2002-12-17

    摘要: A micro-optic Mach-Zehnder interferometer with a differential delay of n bit periods, where n is an integer number, and thermal bias control is useful as a spectral filter in front of a differential detection system to accomplish a balanced receiver. The interferometer may also be arranged as a Michelson interferometer or a dual-plate interferometer.

    摘要翻译: 具有n个周期的差分延迟的微光学马赫 - 策德尔干涉仪,其中n是整数,热偏置控制可用作差分检测系统前面的光谱滤波器,以实现平衡接收机。 干涉仪也可以被布置为迈克尔逊干涉仪或双板干涉仪。

    Method and apparatus for monitoring and control of laser emission wavelength
    6.
    发明授权
    Method and apparatus for monitoring and control of laser emission wavelength 有权
    用于监测和控制激光发射波长的方法和装置

    公开(公告)号:US06289028B1

    公开(公告)日:2001-09-11

    申请号:US09231913

    申请日:1999-01-14

    IPC分类号: H01S310

    CPC分类号: G02B5/20 H01S3/13 H01S5/0687

    摘要: An apparatus for monitoring and controlling the wavelength of laser radiation includes at a least one optical filter for receiving laser radiation and for transmitting and reflecting first and second filtered beams, respectively. Alternatively, the first and second beams may be transmitted by separate filters. The beams are filtered according to respective first and second spectral filter functions that cross at at least one crossing wavelength. A beam comparison element compares the first and second filtered beams and produces an error signal representative of the deviation of the wavelength of the laser radiation from a set-point wavelength. The beam comparison element can include first and second optical detectors and an error circuit for producing the error signal by taking a ratio or the difference of the signals detected by the detectors. Varying the angle of incidence of the laser radiation upon at least one optical filter varies the spectral filter function of that filter for selecting or varying the operating wavelength of the laser. A laser wavelength controller can receive the error signal for stabilizing or tuning the wavelength of the laser radiation. Several embodiments of the invention are disclosed.

    摘要翻译: 用于监测和控制激光辐射的波长的装置包括在至少一个用于接收激光辐射的光学滤波器和用于分别发射和反射第一和第二滤波光束的至少一个滤光器。 或者,第一和第二波束可以通过单独的滤波器传输。 光束根据在至少一个交叉波长处交叉的相应的第一和第二光谱滤波器函数进行滤波。 光束比较元件比较第一和第二滤波光束并产生表示激光辐射的波长与设定点波长的偏差的误差信号。 光束比较元件可以包括第一和第二光学检测器和误差电路,用于通过获取由检测器检测的信号的比率或差值来产生误差信号。 将激光辐射的入射角改变为至少一个滤光器改变该滤光器的光谱滤光器功能,以选择或改变激光器的工作波长。 激光波长控制器可以接收用于稳定或调谐激光辐射波长的误差信号。 公开了本发明的几个实施例。

    Optical external modulator
    7.
    发明授权
    Optical external modulator 有权
    光学外部调制器

    公开(公告)号:US07212326B2

    公开(公告)日:2007-05-01

    申请号:US11223553

    申请日:2005-09-09

    IPC分类号: G02F1/03 G02F1/00

    CPC分类号: G02F1/225 G02F2201/16

    摘要: An optical external modulator includes an optical waveguide having a first interferometer section and a second interferometer section formed on an electro-optic substrate. An electrode structure disposed on the substrate transmits an RF drive signal that is applied to the first and second interferometer sections in series. A reflector optically coupled to the substrate redirects light away from the first interferometer section to the second interferometer section and provides an optical fold region that introduces an optical time delay between the first and second interferometer sections. The optical time delay is used for at least partially compensating for a velocity mismatch between the light and the RF drive signal.

    摘要翻译: 光学外部调制器包括具有形成在电光基板上的第一干涉仪部分和第二干涉仪部分的光波导。 设置在基板上的电极结构传送串联施加到第一和第二干涉仪部分的RF驱动信号。 光耦合到衬底的反射器将光从第一干涉仪部分重新导向第二干涉仪部分,并提供在第一和第二干涉仪部分之间引入光学时间延迟的光学折叠区域。 光学时间延迟用于至少部分地补偿光和RF驱动信号之间的速度失配。

    Integrated wavelength-select transmitter
    8.
    发明授权
    Integrated wavelength-select transmitter 有权
    集成波长选择发射机

    公开(公告)号:US06226424B1

    公开(公告)日:2001-05-01

    申请号:US09306108

    申请日:1999-05-06

    IPC分类号: G02B612

    摘要: An integrated optical transmitter for use in an optical system includes an optical head assembly having an optical beam generator for providing an optical beam and a lens assembly for collecting the optical beam and generating therefrom a formed optical beam. Interface optics receive the formed optical beam for coupling the beam to a modulator so as to reduce nsertion loss to the optical beam. The optical modulator receives the optical beam from the interface optics and provides a modulated optical beam in response to received modulation signals. The optical modulator is coupled to the interface optics to be in a fixed relationship therewith. The integrated optical transmitter can include a means for sampling the optical beam and controlling the temperature of and/or the current supplied to the optical beam generator for controlling the wavelength of the optical transmitter. The optical head assembly and the modulator can be compliantly mounted to a mounting surface reducing the effects of thermal stress on the performance of the optical transmitter.

    摘要翻译: 用于光学系统的集成光发射机包括具有用于提供光束的光束发生器和用于收集光束并由其产生形成的光束的透镜组件的光学头组件。 接口光学器件接收形成的光束,用于将光束耦合到调制器,以减少对光束的插入损耗。 光调制器从接口光学器件接收光束并且响应于接收的调制信号提供调制的光束。 光调制器耦合到界面光学器件以与其成为固定的关系。 集成光发射机可以包括用于对光束进行采样并控制提供给光束发生器的温度和/或电流以控制光发射机的波长的装置。 光学头组件和调制器可以顺应地安装到安装表面,减少热应力对光发射机性能的影响。

    Method and apparatus for monitoring and control of laser emission wavelength
    10.
    发明授权
    Method and apparatus for monitoring and control of laser emission wavelength 有权
    用于监测和控制激光发射波长的方法和装置

    公开(公告)号:US06560253B1

    公开(公告)日:2003-05-06

    申请号:US09922396

    申请日:2001-08-03

    IPC分类号: H01S310

    CPC分类号: H01S3/13 G02B5/20

    摘要: An apparatus for monitoring and controlling the wavelength of laser radiation includes at a least one optical filter for receiving laser radiation and for transmitting and reflecting first and second filtered beams, respectively. The beams are filtered according to respective first and second spectral filter functions that cross at at least one crossing wavelength. A beam comparison element compares the first and second filtered beams and produces an error signal representative of the deviation of the wavelength of the laser radiation from a set-point wavelength. Varying the angle of incidence of the laser radiation upon at least one optical filter varies the spectral filter function of that filter for selecting or varying the operating wavelength of the laser. A laser wavelength controller can receive the error signal for stabilizing or tuning the wavelength of the laser radiation.

    摘要翻译: 用于监测和控制激光辐射的波长的装置包括在至少一个用于接收激光辐射的光学滤波器和用于分别发射和反射第一和第二滤波光束的至少一个滤光器。 光束根据在至少一个交叉波长处交叉的相应的第一和第二光谱滤波器函数进行滤波。 光束比较元件比较第一和第二滤波光束并产生表示激光辐射的波长与设定点波长的偏差的误差信号。 将激光辐射的入射角改变为至少一个滤光器改变该滤光器的光谱滤光器功能,用于选择或改变激光器的工作波长。 激光波长控制器可以接收用于稳定或调谐激光辐射波长的误差信号。