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    OPTICAL CONTROL UNIT AND FORMING METHOD THEREFOR
    121.
    发明公开
    OPTICAL CONTROL UNIT AND FORMING METHOD THEREFOR 审中-公开
    VERFAHREN ZU IHRER HERSTELLUNG的优质STEECHEEHEIT

    公开(公告)号：EP1406111A1

    公开(公告)日：2004-04-07

    申请号：EP02736117.9

    申请日：2002-06-14

    Applicant: HAMAMATSU PHOTONICS K. K.

    Inventor： Takiguchi, Yoshihiro ,  ITOH, Kensaku

    IPC: G02F1/01

    CPC classification number: G02F1/0131 ,  B82Y20/00 ,  G02B6/1225 ,  G02F2201/02

    Abstract: An end face 7a of an optical fiber 7 and an end face 8a of an optical fiber 8 are arranged so as to have a predetermined interval and to oppose each other in a V-groove 23 of a base 21. A solution 27 including particles used as a material of the photonic crystal is dropped into a space section 25 which is formed by the end face 7a, the end face 8a, and the V-groove 23. Accordingly, by growing the photonic crystal from each of the end face 7a and the end face 8a, the optical control section including the photonic crystal 2 is formed on each of the end face 7a and the end face 8a.

    Abstract translation: 光纤（7,8）的端面（7a，8a）以相隔规定的距离彼此相对设置在基座（21）的V形槽（23）中。 将用作光子晶体的材料并含有微粒的溶液（27）滴入由两个端面和V形槽限定的空间（25）中。 因此，分别从各个端面生长光子晶体，从而在端面分别形成含有光子晶体（2）的光学控制单元。

    WAVELENGTH CONVERTER
    122.
    发明公开
    WAVELENGTH CONVERTER 有权
    波长转换器

    公开(公告)号：EP1306718A1

    公开(公告)日：2003-05-02

    申请号：EP00963066.6

    申请日：2000-10-03

    Applicant: Japan Science and Technology Corporation

    Inventor： YAMASHITA, Shinji ,  TORII, Kenichi

    IPC: G02F1/35 ,  H04B10/18

    CPC classification number: G02F1/3536 ,  G02F2001/211 ,  G02F2201/02 ,  G02F2203/06

    Abstract: A wavelength converter which employs an optical fiber and has high converter efficiency. The polarization planes of a signal light and an exciting light outputted from a laser diode (LD) (103) are respectively controlled by polarization controllers (PC's) (101 and 104) and the phases of the lights are respectively modulated by phase modulators (PM's) (102 and 105) in accordance with modulation signals outputted from an oscillator (110). Then, the output lights from the PM's (102 and 105) are multiplexed by a coupler (106). After the multiplexed signal light and exciting light are amplified by an optical amplifier (EDFA) (107), they are inputted to a dispersion shift fiber (DSP) (108). After wavelength transformation (four light waves mixing (FWM)) is practiced in the DSP, an FWM light is outputted through a band-pass filter (BPF) (109).

    Optical devices
    123.
    发明公开
    Optical devices 失效
    光学器件

    公开(公告)号：EP1158350A1

    公开(公告)日：2001-11-28

    申请号：EP01119201.0

    申请日：1995-05-19

    Applicant: UNIVERSITY OF SOUTHAMPTON

    Inventor： Laming, Richard Ian ,  Loh, Wei-Hung ,  Payne, David Neil ,  Zervas, Michael Nickolaos

    IPC: G02F1/35 ,  H01S3/098 ,  H01S3/067

    CPC classification number: H01S3/06708 ,  G02B2006/2839 ,  G02F1/3523 ,  G02F2201/02 ,  G02F2202/06 ,  G02F2203/055 ,  H01S3/06737 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/08022 ,  H01S3/08027 ,  H01S5/141 ,  H01S5/146

    Abstract: Passive, self-adjusting and tracking optical wavelength filters 20 are described. The filters are absorptive and can be of either transmissive or reflective type. The filters comprise an unpumped doped optical waveguide configured so that signals of different wavelength are spatially decoupled to some extent. The self-adjustment of the filter centre wavelength is achieved by the combined effects of the power-dependent saturable absorption, provided by an appropriate dopant, and partial longitudinal hole burning provided by the spatial decoupling of the different wavelengths. External cavity lasers using this type of filter in the external cavity are also described. This external cavity configuration can provide stable single frequency operation of, for example, a semiconductor laser. By using a saturable absorber for the external cavity (e.g. an erbium doped fibre), longitudinal mode-hopping can be suppressed, ensuring single frequency operation.

    Abstract translation: 描述了无源自调整和跟踪光波长滤波器20。 滤光片是吸收性的，可以是透射型或反射型。 滤波器包括未掺杂的光波导，其被配置为使得不同波长的信号在一定程度上在空间上解耦。 滤波器中心波长的自我调节是通过由适当掺杂剂提供的依赖于功率的可饱和吸收和由不同波长的空间解耦提供的部分纵向孔燃烧的组合效应实现的。 还描述了在外腔中使用这种滤波器的外腔激光器。 该外部空腔配置可以提供例如半导体激光器的稳定的单频操作。 通过对外腔使用可饱和吸收体（例如掺铒光纤），可以抑制纵向跳模，确保单频操作。

    Variable optical filter
    125.
    发明公开
    Variable optical filter 审中-公开
    VARIABLER OPTISCHER过滤器

    公开(公告)号：EP1048962A2

    公开(公告)日：2000-11-02

    申请号：EP00303642.3

    申请日：2000-04-28

    Applicant: JDS Uniphase Inc.

    Inventor： Diemeer, Mart

    IPC: G02B6/28

    CPC classification number: G02B6/3576 ,  G02B5/28 ,  G02B6/122 ,  G02B6/1221 ,  G02B6/125 ,  G02B6/266 ,  G02B6/2813 ,  G02B6/29358 ,  G02B6/2937 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/355 ,  G02B6/3594 ,  G02B26/001 ,  G02B2006/121 ,  G02F1/0147 ,  G02F1/065 ,  G02F1/3132 ,  G02F1/3136 ,  G02F1/3137 ,  G02F2001/217 ,  G02F2201/02 ,  G02F2203/48

    Abstract: The present invention relates to a variable optical filter that can be used to filter an incoming signal, attenuate an incoming signal or in one configuration switch an incoming signal from one path to another. The present invention has found that an accurate and economical variable optical filter can be created by using an elastomeric material having a high coefficient of expansion in cooperation with a means for locally varying the temperature of the elastomeric material as an actuator for moving a reflective surface within the optical filter. The actuator can be operated in a controlled manner for example, to effect a tilt of the reflective surface for switching or attenuating an optical signal, or to vary the resonant wavelengths of a resonant cavity between partially reflective surfaces. In accordance with the invention there is provided, a variable optical filter comprising an input port and an output port; a first at least partially reflective surface disposed to receive a beam of light launched from the input port; an elastomeric material for supporting and varying the position of the at least partially reflective surface with respect to the input port; a heater for applying variable amounts of heat to the elastomeric material to move or pivot the at least partially reflective surface relative to the input port; and, control means for controlling the heater and for providing a signal to apply variable amounts of heat.

    Abstract translation: 本发明涉及一种可变滤波器，其可用于滤波输入信号，衰减输入信号或在一个配置中将输入信号从一个路径切换到另一个路径。 本发明已经发现，通过使用具有高膨胀系数的弹性体材料，可以与用于局部地改变弹性体材料的温度的装置一起作为用于移动内部的反射表面的致动器来产生精确和经济的可变滤光器 滤光片。 致动器可以例如受控的方式操作，以实现用于切换或衰减光信号的反射表面的倾斜，或改变部分反射表面之间的谐振腔的谐振波长。 根据本发明，提供一种包括输入端口和输出端口的可变滤光器; 设置成接收从输入端口发射的光束的第一至少部分反射表面; 用于相对于输入端口支撑和改变至少部分反射表面的位置的弹性体材料; 加热器，用于向所述弹性体材料施加可变量的热量以相对于所述输入端口移动或枢转所述至少部分反射表面; 以及用于控制加热器并提供信号以应用可变量的热量的控制装置。

    Endlos-Polarisationsregelung
    126.
    发明公开
    Endlos-Polarisationsregelung 失效
    连续极化控制

    公开(公告)号：EP0514787A3

    公开(公告)日：1993-01-20

    申请号：EP92108244.2

    申请日：1992-05-15

    Applicant: SIEMENS AKTIENGESELLSCHAFT

    Inventor： Das, Chandan, Dipl.-Ing.

    IPC: G02F1/01 ,  G02F2/00

    CPC classification number: G02F1/0136 ,  G02F2/002 ,  G02F2201/02

    Abstract: Insbesondere für optische Überlagerungsempfänger ist es notwendig, die Polarisation des lokal erzeugten Lichtes der des Empfangslichtes nachzuregeln. Die Polarisationsregelung erfolgt dabei durch Verstellung der Verzögerung doppelbrechender Elemente, die nach einer Anzahl gleichgerichteter Verstellschritte an eine Verstellgrenze gelangen können und zurückgestellt werden müssen. Dabei ergibt sich das Problem, daß schnelle Änderungen der Polarisation des Eingangslichtes auch während Rückstellphase berücksichtigt werden müssen, außerdem sollten auch nichtideale doppelbrechende Elemente verwendet werden. Erfindungsgemäß werden vier doppelbrechende Elemente verwendet, von denen die im Lichtweg ersten beiden Elemente der normalen Regelung und die beiden folgenden Elemente der Regelung während der Rückstellprozedur dienen.

    OPTICAL MODE CONVERSION BY NONLINEAR EFFECTS
    129.
    发明公开
    OPTICAL MODE CONVERSION BY NONLINEAR EFFECTS 有权
    的光学模由非线性效应CHANGE

    公开(公告)号：EP2788817A4

    公开(公告)日：2015-08-05

    申请号：EP12862528

    申请日：2012-12-06

    Applicant: OFS FITEL LLC ,  UNIV CORNELL

    Inventor： GRUNER-NIELSEN LARS ,  JAKOBEN DAN P ,  XU CHUNHUI ,  CHENG JI

    IPC: G02F1/365

    CPC classification number: G02B6/14 ,  G02F1/3536 ,  G02F1/365 ,  G02F2201/02 ,  G02F2201/05

    Abstract: Embodiments of the present invention generally relate to optical mode conversion by nonlinear effects. More specifically, embodiments of the present invention relate to nonlinear mode conversion utilizing intermodal four-wave mixing to convert light between modes having different wavelengths for complex applications. In one embodiment of the present invention, a fiber comprises an input end for receiving light in a first mode at a first wavelength, and an output end for outputting light in a desired second mode at a desired second wavelength, wherein the first wavelength and the second wavelength are not the same. In many embodiments, the fiber comprises a higher-order mode fiber.

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