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
    • 13. 发明授权
    • Method for customizing optical device configuration after packaging and
packaged optical device for use therewith
    • 用于定制包装后的光学器件配置的方法以及与其一起使用的封装的光学器件
    • US5719974A
    • 1998-02-17
    • US500896
    • 1995-08-01
    • Raman Kashyap
    • Raman Kashyap
    • G02B6/02G02B6/12G02B6/34G02B6/42H01L31/0203H01S5/022H01S5/14
    • G02B6/02133G02B6/12007G02B6/4202G02B6/4237G02B6/02123G02B6/29317G02B6/29353H01S5/02284H01S5/146
    • A method of assembling a package including a photosensitively configured optical device providing a window positioned to allow optical frequency electromagnetic radiation from an external source to impinge on a photosensitive part of the optical device. In one embodiment a packaged intermediate product is fabricated, which may subsequently be formed into an external cavity semiconductor laser having certain specified characteristics, by writing a grating into a photosensitive fiber. Use of a window allows the characteristics of the laser to be defined after packaging so that, firstly a large stock of external cavity lasers having all possible characteristics need not be held, and secondly so that the reflectivity of the grating need be chosen only once the degree of coupling between the fiber and the laser diode has been established, thus enhancing the performance of the external cavity laser.
    • PCT No.PCT / GB94 / 00180 Sec。 371日期1995年8月1日 102(e)日期1995年8月1日PCT 1994年1月31日PCT PCT。 公开号WO94 / 17448 日期1994年8月4日一种组装包括光敏配置的光学器件的封装的方法,该光学器件提供了一个窗口,该窗口被定位成允许来自外部源的光频电磁辐射撞击在光学器件的光敏部分上。 在一个实施例中,制造封装的中间产品,其随后可以通过将光栅写入感光纤维中而形成具有某些特定特性的外部腔半导体激光器。 使用窗口可以在包装之后定义激光的特性,因此首先需要保持具有所有可能特性的大量外部腔体激光器,其次,使光栅的反射率仅需要选择一次 已经建立了光纤和激光二极管之间的耦合度,从而提高了外腔激光器的性能。
    • 16. 发明申请
    • QUASI-PHASE-MATCHED WAVELENGTH CONVERTER
    • 相位匹配波长转换器
    • US20110038034A1
    • 2011-02-17
    • US12855477
    • 2010-08-12
    • Raman KASHYAPAmirhossein Tehranchi
    • Raman KASHYAPAmirhossein Tehranchi
    • G02F1/37
    • G02F1/3775G02F2202/20
    • There is provided an optical frequency converter comprising: an optical guiding structure having an input and an output, and comprising: a first grating portion adjacent to the input; a second grating portion adjacent to output, and a third grating between the first and second grating portion to form an apodized step-chirped grating extending between the input and the output. Each grating portion comprises a plurality of sections each comprising a plurality of segments. Each segment has a segment width and comprises a poled region having a poled width at least equal to one micron and a reversely poled region. The segment width for all of the grating portions and a duty ratio of the poled width to the segment width are constant within each section. The duty ratio increases within the first grating portion, decreases within the second grating portion, and is constant within the third grating portion.
    • 提供一种光学变频器,包括:具有输入和输出的光导结构,包括:与输入相邻的第一光栅部分; 与输出相邻的第二光栅部分和在第一和第二光栅部分之间的第三光栅,以形成在输入和输出之间延伸的变迹的步进啁啾光栅。 每个光栅部分包括多个部分,每个部分包括多个部分。 每个段具有段宽度并且包括具有至少等于1微米的极化宽度的极化区域和反向极化区域。 所有光栅部分的片段宽度和极化宽度与片段宽度的占空比在每个部分内是恒定的。 占空比在第一光栅部分内增加,在第二光栅部分内减小,并且在第三光栅部分内是恒定的。