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。

    Multi-functional optical isolator
    5.
    发明授权
    Multi-functional optical isolator 失效
    多功能光隔离器

    公开(公告)号:US6088153A

    公开(公告)日:2000-07-11

    申请号:US90505

    申请日:1998-06-04

    摘要: A multi-functional optical isolator that couples radiation from a plurality of input fibers to a plurality of output fibers such that an optical beam emitted from any particular input fiber is transmitted only to its corresponding output fiber. Additionally, an optical beam emitted in the reverse direction from any output fiber is not transmitted back into any of the input or output fibers. The multi-functional optical isolator includes a first focusing lens that collimates the optical radiation emitted from the input fibers and causes them to pass through an optical isolator. The optical isolator has polarizing elements and a magneto-optic polarization rotator. A second focusing lens focuses the optical beams into the output fibers such that the optical radiation from each input fiber is coupled to its corresponding output fiber. Additional off-axis optical elements at other wavelengths may be used for providing bulk-optic coupling of a pump light into a single-mode or multi-mode core of a doped fiber. A vee-shaped isolator with a high reflector in the isolated beam path is possible and provides for additional beams coupled through the reflector.

    摘要翻译: 一种多功能光隔离器,其将来自多个输入光纤的辐射耦合到多个输出光纤,使得从任何特定输入光纤发射的光束仅传输到其对应的输出光纤。 此外,从任何输出光纤以相反方向发射的光束不被传送回任何输入或输出光纤。 多功能光隔离器包括第一聚焦透镜,其对从输入光纤发射的光辐射进行准直并使它们通过光隔离器。 光隔离器具有偏振元件和磁光偏振旋转器。 第二聚焦透镜将光束聚焦到输出光纤中,使得来自每个输入光纤的光辐射被耦合到其相应的输出光纤。 可以使用其他波长处的附加离轴光学元件来提供泵浦光到掺杂光纤的单模或多模核的体光耦合。 在孤立的光束路径中具有高反射器的vee形隔离器是可能的,并且提供通过反射器耦合的附加光束。

    Apparatus and method for pumping of a weakly absorbing lasant material
    6.
    发明授权
    Apparatus and method for pumping of a weakly absorbing lasant material 失效
    用于抽吸弱吸收的农民材料的装置和方法

    公开(公告)号:US5182759A

    公开(公告)日:1993-01-26

    申请号:US761279

    申请日:1991-09-17

    摘要: A laser apparatus and method is disclosed comprising a first lasant material which is located in an optical cavity and which produces laser radiation of a first wavelength, and a second lasant material which is pumped by radiation from the first lasant material, which absorbs laser radiation at the first wavelength in an amount generally comparable to the Optimum Output Coupling, which functions as the output coupler for the optical cavity and which lases at a second wavelength. The first lasant material and the second lasant material are preferably selected to have minimal losses such that there is a net gain in the cavity.

    摘要翻译: 公开了一种激光设备和方法,其包括位于光腔中并产生第一波长的激光辐射的第一种农药材料,以及通过来自第一种农作物材料的辐射泵送的第二种, 第一波长的量通常与最佳输出耦合相当,其用作光腔的输出耦合器,并且在第二波长处发光。 优选地选择第一种农药材料和第二种农药材料以具有最小的损失,使得在该空腔中存在净增益。

    Solid state laser optimized for multimode operation
    7.
    发明授权
    Solid state laser optimized for multimode operation 失效
    固态激光器优化多模操作

    公开(公告)号:US5644589A

    公开(公告)日:1997-07-01

    申请号:US577421

    申请日:1995-12-22

    申请人: Douglas W. Anthon

    发明人: Douglas W. Anthon

    IPC分类号: H01S3/08 H01S3/082

    摘要: Two solid state laser structures are provided which are optimized for multimode operation. The first laser structure has a plurality of normal incidence optically transmissive surfaces in the laser cavity. The most reflective one of those normal incidence surfaces is disposed at the optical center of the laser cavity. The gain medium is centered in the subcavity defined by a cavity mirror and the optical center. In the second laser structure, there are no normal incidence surface in the laser cavity, and the gain medium is disposed at the optical center of the laser cavity. The laser structures are employed to construct erbium glass lasers which are not only optimized for multimode operation but also have effective cooling of the gain medium and minimized thermal lensing effect.

    摘要翻译: 提供两个固态激光器结构,为多模操作进行了优化。 第一激光器结构在激光腔中具有多个法向入射光学透射表面。 这些正常入射面中最反射的一个设置在激光腔的光学中心。 增益介质以由腔镜和光学中心限定的子腔为中心。 在第二激光器结构中,激光腔中没有法向入射面,增益介质设置在激光腔的光学中心。 采用激光结构构建铒玻璃激光器,不仅优化了多模操作,而且还对增益介质进行了有效的冷却和最小化的透镜效应。

    Tunable optical filter, optical apparatus for use therewith and method utilizing same
    10.
    发明授权
    Tunable optical filter, optical apparatus for use therewith and method utilizing same 失效
    可调式滤光器,与其一起使用的光学装置及其利用方法

    公开(公告)号:US07221452B2

    公开(公告)日:2007-05-22

    申请号:US10638061

    申请日:2003-08-07

    IPC分类号: G01J3/28

    CPC分类号: G01J3/12 G01J3/18

    摘要: An apparatus for filtering an input beam of light to produce an output beam of light is provided. The apparatus facilitates tuning an input beam of light to a desired wavelength by directing the input beam of light, via a mirror, onto a diffractive optical element and returning the diffracted portion of the input beam of light as an output beam of light. The apparatus may also include a polarization recovery element adapted for receiving the input beam of light and outputting a first and second spatially offset beam of polarized light. The apparatus may also be configured as a tunable receiver by utilizing a detector to detect a characteristic of a filtered output beam. The output beam may be additionally filtered by a spatial filter.

    摘要翻译: 提供了一种用于滤波输入光束以产生输出光束的装置。 该装置通过将输入光束经由反射镜引导到衍射光学元件上并将输入光束的衍射部分作为输出光束返回,便于将输入光束调谐到期望的波长。 该装置还可以包括适于接收输入光束并输出第一和第二空间偏移的偏振光束的偏振恢复元件。 该装置还可以通过利用检测器来检测滤波的输出光束的特性来配置为可调谐接收器。 可以通过空间滤波器附加地过滤输出光束。