公开(公告)号：US06704332B2

公开(公告)日：2004-03-09

申请号：US10099730

申请日：2002-03-15

申请人： William B. Chapman ,  Alejandro Farinas ,  Carter Hand ,  Hua Li ,  Andrew Daiber ,  Nadim Maluf

发明人： William B. Chapman ,  Alejandro Farinas ,  Carter Hand ,  Hua Li ,  Andrew Daiber ,  Nadim Maluf

IPC分类号： H01S310

CPC分类号： H01S5/141 ,  H01S3/105 ,  H01S3/1055 ,  H01S3/1062 ,  H01S5/0222 ,  H01S5/0617 ,  H01S5/0687

摘要： External cavity lasers apparatus and methods that allow fast tuning, high wavelength stability, low cavity losses, and form factors that are comparable to solid state, fixed wavelength lasers. The apparatus comprise a gain medium emitting a light beam, a tunable wavelength selection element positioned in the light beam and configured feed back light of a selected wavelength to the gain medium, and a microelectromechanical systems (MEMS) actuator element operatively coupled to the tunable wavelength selection element. The MEMS actuator element may be configured to actuate the tunable wavelength selection element according to a first degree of freedom to select the wavelength of the feedback to the gain medium, and to actuate the actuate the tunable wavelength selection element according to a second degree of freedom to provide phase control of the feedback. The MEMS actuator element and tunable wavelength selection element may additionally be configured such that actuation of the tunable wavelength selection element with respect to a third degree of freedom provides a selectable level of attenuation of the feedback to the gain medium.

摘要翻译： 允许快速调谐，高波长稳定性，低腔损耗和与固态固定波长激光器相当的形状因子的外腔激光器装置和方法。 该装置包括发射光束的增益介质，位于光束中的可调谐波长选择元件以及将所选波长的反射光配置到增益介质，以及可操作地耦合到可调波长的微机电系统（MEMS）致动器元件 选择元素。 MEMS致动器元件可以被配置为根据第一自由度来激励可调波长选择元件，以便将第一自由度选择到增益介质的反馈波长，并且致动根据第二自由度激活可调波长选择元件 提供反馈的相位控制。 MEMS致动器元件和可调谐波长选择元件可以另外被配置为使得相对于第三自由度的可调谐波长选择元件的致动提供反馈到增益介质的可选择的衰减水平。

公开(公告)号：US20050286573A1

公开(公告)日：2005-12-29

申请号：US10877572

申请日：2004-06-25

申请人： Carter Hand ,  Weizhi Wang

发明人： Carter Hand ,  Weizhi Wang

IPC分类号： H01S3/10 ,  H01S5/00 ,  H01S5/028 ,  H01S5/06 ,  H01S5/0683 ,  H01S5/14

CPC分类号： H01S5/141 ,  H01S3/109 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/02284 ,  H01S5/028 ,  H01S5/0683

摘要： A second harmonic generation laser system comprising: a non-linear frequency converting medium; and an external cavity pump laser that produces optical energy at a single mode and at a single frequency and that is disposed to provide the optical energy to the non-linear frequency converting medium.

摘要翻译： 一种二次谐波发生激光系统，包括：非线性频率转换介质; 以及在单个模式和单个频率处产生光能并且被设置为向非线性频率转换介质提供光能的外腔泵浦激光器。

公开(公告)号：US06608847B2

公开(公告)日：2003-08-19

申请号：US09967885

申请日：2001-09-28

申请人： Guangzhi Z. Zhang ,  Andrew Davidson ,  David Robinson ,  Carter Hand ,  Mark Wippich ,  Murray Reed ,  Weizhi Wang

发明人： Guangzhi Z. Zhang ,  Andrew Davidson ,  David Robinson ,  Carter Hand ,  Mark Wippich ,  Murray Reed ,  Weizhi Wang

IPC分类号： H01S310

CPC分类号： H01S5/143 ,  H01S5/02284 ,  H01S2301/02

摘要： A laser apparatus and method with compact cavity design that provides suppression of source spontaneous emission (SSE) and amplified spontaneous emission (ASE) light with minimal loss. The laser comprises a gain medium emitting a light beam along an optical path, a tuning element positioned in the optical path and configured feed back light of a selected wavelength to the gain medium and configured to define a first output beam directed along a first output path, a partial reflector located in the optical path and positioned to create a second output beam directed along a second output path substantially parallel to the first output path; and having a spontaneous emission component that is spatially separated from the selected wavelength. The second output beam can be coupled into optical fiber and produce a coherent light source with high spectral purity and tunable wavelengths.