会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • Talbot cavity diode laser with uniform single-mode output
    • Talbot腔二极管激光器具有均匀的单模输出
    • US4972427A
    • 1990-11-20
    • US407206
    • 1989-09-14
    • William StreiferRobert G. WaartsDavid F. WelchDonald R. Scifres
    • William StreiferRobert G. WaartsDavid F. WelchDonald R. Scifres
    • G02B6/28H01S5/14H01S5/40
    • H01S5/148H01S5/4062G02B6/2813
    • A diode laser of the type having an array of laser emitters in a Talbot cavity in which edge reflectors are added to enhance feedback to edgemost emitters. In one embodiment, a transparent slab with reflectively coated sides is present between the phase plane of the emitted light and the Talbot cavity reflector. The phase plne is defined by a lenticular array placed a focal length in front of the laser emitters. In another embodiment, the Talbot cavity reflector has an increased reflectivity toward its edges. In all embodiments the Talbot cavity reflector is preferably spaced a distance na.sup.2 /.lambda. from the phase plane, where n is a positive integer, a is separation between adjacent emitters and .lambda. is the wavelength of emitted light. An integrated embodiment has the array and cavity reflectors defined ina single semiconductor body divided into active and ransparent region. Side mirrors are etched into the semiconductor body. The laser array may also be extended to two dimensions with individual lasers or laser bars fiber coupled to a lens surface, with an edge reflector and Talbot cavity reflector coated on an otherwise transparent slab.
    • 在Talbot腔中具有激光发射器阵列的类型的二极管激光器,其中添加边缘反射器以增强对edgemost发射体的反馈。 在一个实施例中,在发射光的相平面和Talbot腔反射器之间存在具有反射涂覆侧面的透明板。 相位斑点由在激光发射器前面放置焦距的透镜阵列限定。 在另一个实施例中,Talbot腔反射器对其边缘具有增加的反射率。 在所有实施例中,Talbot空腔反射器优选与相平面间隔距离为na2 /λ,其中n为正整数,a为相邻发射体之间的间隔,λ为发射光的波长。 集成实施例具有被划分为活性和透明区域的单个半导体主体中限定的阵列和空腔反射器。 侧镜被蚀刻到半导体本体中。 激光器阵列也可以扩展到二维,其中单独的激光器或激光棒纤维耦合到透镜表面,边缘反射器和Talbot腔体反射器涂覆在另外透明的平板上。
    • 38. 发明授权
    • Method and apparatus for polarization mode dispersion monitoring in a multiple wavelength optical system
    • 用于多波长光学系统中偏振模色散监测的方法和装置
    • US07203428B2
    • 2007-04-10
    • US10458070
    • 2003-06-10
    • Robert G. WaartsRussell Chipman
    • Robert G. WaartsRussell Chipman
    • H04B10/06
    • H04B10/2569
    • The invention relates to the monitoring of polarization mode dispersion (PMD) using heterodyne detection for providing PMD compensation in optical networks, and an apparatus for monitoring PMD. In the present invention, a broadband PMD monitor is disclosed based on heterodyne detection with a tunable laser source which can be fed to a compensator such as an add/drop or other wavelength switch and polarization dependent attenuation means. A signal from a local oscillator is combined with an optical signal and the beat frequency amplitude and phase is analyzed for two orthogonal polarization states simultaneously to obtain a state of polarization. By averaging a plurality of polarization states within a channel, PMD can be estimated for compensation.
    • 本发明涉及使用外差检测在光网络中提供PMD补偿的偏振模色散(PMD)的监测,以及用于监视PMD的装置。 在本发明中,公开了一种基于外差检测的宽带PMD监视器,其中可调谐激光源可以被馈送到诸如分插或其他波长开关和偏振相关衰减装置之类的补偿器。 来自本地振荡器的信号与光信号组合,同时分析拍频的振幅和相位两个正交极化状态以获得偏振状态。 通过平均信道内的多个极化状态,可以估计PMD用于补偿。
    • 39. 发明授权
    • Laser device for nonlinear conversion of light
    • 用于非线性转换光的激光装置
    • US06996140B2
    • 2006-02-07
    • US10742959
    • 2003-12-22
    • Robert G. WaartsNigel Copner
    • Robert G. WaartsNigel Copner
    • H01S3/10H01S3/04
    • H01S5/146G02F1/377G02F2001/3548H01S5/005H01S5/0092H01S5/028H01S5/065H01S5/1039H01S5/1096H01S5/141
    • A laser apparatus for nonlinear conversion of light is disclosed utilizing a laser diode having a reflective back facet and a front facet having a reflectance of less than about 1% for emitting a multifrequency optical beam, and a nonlinear optical element for receiving the multifrequency optical beam and for generating a frequency-converted radiation. An external frequency-selective reflector is provided for power and spectral stabilization of the multifrequency optical beam, and for confining its optical spectrum within a bandwidth of efficient nonlinear conversion in the nonlinear optical element. The laser diode reflective back facet and the external frequency-selective reflector form an extended laser cavity. In operation, the multifrequency optical beam contains a plurality of longitudinal modes of the extended laser cavity which are confined within the frequency conversion bandwidth of the nonlinear element. The external frequency-selective reflector may comprise a waveguiding element such as a single-mode fiber incorporating a Bragg grating, and may also comprise a Fabry-Perot etalon.
    • 公开了一种用于光的非线性转换的激光装置,其具有具有反射性背面和反射率小于约1%的用于发射多频光束的前分面的激光二极管,以及用于接收多频光束的非线性光学元件 并用于产生频率转换的辐射。 提供外部频率选择反射器用于多频光束的功率和频谱稳定,并且用于将其光谱限制在非线性光学元件中的有效非线性转换的带宽内。 激光二极管反射背面和外部频率选择反射器形成延伸的激光腔。 在操作中,多频光束包含被限制在非线性元件的频率转换带宽内的多个延伸激光腔的纵向模式。 外部频率选择性反射器可以包括诸如包含布拉格光栅的单模光纤的波导元件,并且还可以包括法布里 - 珀罗标准具。