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    HYBRID ISOLATOR AND MODE EXPANDER FOR FIBER LASER AMPLIFIERS
    3.
    发明公开
    HYBRID ISOLATOR AND MODE EXPANDER FOR FIBER LASER AMPLIFIERS 审中-公开
    HYBRID隔离器和MODENVERGRÖSSERERFOR光纤激光放大器

    公开(公告)号：EP2916400A3

    公开(公告)日：2015-10-07

    申请号：EP15000600.5

    申请日：2015-03-03

    申请人： V-GEN LTD.

    发明人： Barness, Doron ,  Rowen, Eitan Emanuel ,  Lasri, Jacob ,  Inbar, Eran ,  Tal, Eran

    IPC分类号： H01S3/067 ,  H01S3/00 ,  G02F1/09 ,  H01S3/094 ,  H01S3/0941

    CPC分类号： H01S3/0064 ,  G02B6/14 ,  G02B6/2746 ,  H01S3/06704 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094003 ,  H01S3/09415

    摘要： Mode expander isolator (124) for a fiber laser amplifier comprising an optical fiber input (158), an optical fiber output (160), an isolator (154) and at least one lens (156A,B), the optical fiber input for coupling a first optical fiber with the mode expander isolator, the optical fiber output for coupling a second optical fiber with the mode expander isolator, the isolator (154) being positioned between the optical fiber input and the optical fiber output for preventing back-reflected laser light (174) from reaching the optical fiber input (158) and wherein the isolator and the at least one lens form a free space mode expander (124). The laser may include a seeder (106, a first fiber amplifier (110) pumped by a laser diode(108), the mode expander isolator (124) and a second fiber amplifier (116) pumped by a laser diode (112), the mode expander isolator preventing back-reflected light from the second fiber amplifier to reach the first fiber amplifier.

    APPARATUS AND METHODS FOR PRODUCING AND/OR PROVIDING RECIRCULATING OPTICAL DELAY(S)
    6.
    发明公开
    APPARATUS AND METHODS FOR PRODUCING AND/OR PROVIDING RECIRCULATING OPTICAL DELAY(S) 审中-公开
    装置及其制造方法和/或递送循环光延迟（EN）

    公开(公告)号：EP2769491A1

    公开(公告)日：2014-08-27

    申请号：EP12845113.5

    申请日：2012-10-18

    申请人： The General Hospital Corporation

    发明人： NAMATI, Eman ,  TEARNEY, Guillermo J. ,  BOUMA, Brett Eugene ,  VAKOC, Ben

    IPC分类号： H04B10/035

    CPC分类号： G02B6/2861 ,  G02B6/2746 ,  G02B6/2934 ,  G02B2207/117 ,  G02F1/125 ,  H01S3/0057

    摘要： Exemplary apparatus and method can be availed for providing at least one electromagnetic radiation. For example, it is possible to provide at least one first electromagnetic radiation having a frequency that changes over time with a first characteristic period. Further, with at least one hardware arrangement, it is possible to receive and modify the first electromagnetic radiation(s) into at least one second electromagnetic radiation having a frequency that changes over time with a second characteristic period. The second characteristic period can be smaller than the first characteristic period. The hardware arrangement(s) can include a resonant cavity having a round-trip propagation time for the first electromagnetic radiation(s) that can be approximately the same as the first characteristic period.

    Optical transmitter, optical module, and optical connector
    7.
    发明公开
    Optical transmitter, optical module, and optical connector 审中-公开
    的光发射器，一个光学模块和光学连接器

    公开(公告)号：EP2645141A3

    公开(公告)日：2014-01-22

    申请号：EP13155392.7

    申请日：2013-02-15

    申请人： Fujitsu Limited

    发明人： Fukui, Shinsuke ,  Ohtani, Toshihiro

    IPC分类号： G02B6/42 ,  G02B6/27 ,  G02F1/095 ,  G02B6/12

    CPC分类号： G02F1/0955 ,  G02B6/2746 ,  G02B6/4208 ,  G02F1/095

    摘要： An optical transmitter includes an optical isolator that includes a Faraday rotator transmitting light output from a light source, and has a first state in which the light is transmitted through the optical isolator when a first magnetic field is applied to the Faraday rotator, and a second state in which the amount of the light transmitted through the optical isolator is less than that in the first state when a second magnetic field different from the first magnetic field is applied to the Faraday rotator; a junction to which an optical transmission medium into which the light output from the optical isolator is input is connected; a magnetic-field generator that selectively applies the first magnetic field or the second magnetic field to the Faraday rotator; and a switching unit that switches the magnetic-field generator to the second state when the optical transmission medium is not connected to the junction.

    SINGLE FIBRE DEVICE
    8.
    发明公开
    SINGLE FIBRE DEVICE 有权
    单纤维装置

    公开(公告)号：EP2685300A1

    公开(公告)日：2014-01-15

    申请号：EP12852059.0

    申请日：2012-11-22

    申请人： Huawei Technologies Co., Ltd.

    发明人： ZENG, Tongxin ,  ZHANG, Xueming ,  LI, Sheng

    IPC分类号： G02B6/42

    CPC分类号： G02B6/4246 ,  G02B6/27 ,  G02B6/272 ,  G02B6/2746 ,  G02B6/2773 ,  G02B6/278 ,  G02B6/2793 ,  G02B6/4208 ,  G02B6/4213 ,  G02B6/4215 ,  G02B2006/12116 ,  G02F1/09 ,  G02F1/095 ,  G02F1/0955

    摘要： A single-fiber subassembly includes a first photodiode (2) for receiving incident light (21) and a laser diode (3) for transmitting emergent light (31), and a same-wavelength optical splitter (1) that has a positive direction. The same-wavelength optical splitter (1) includes a first birefringent plate (11), a half-wave plate (12), a 45° Faraday rotator (13), and a second birefringent plate (14) that is the same as the first birefringent plate (11), which are arranged in sequence along the positive direction and vertical to the positive direction. An included angle between an optical axis of the first birefringent plate (11) and the positive direction is α, where 0°

    摘要翻译： 单光纤子组件包括用于接收入射光（21）的第一光电二极管（2）和用于透射出射光（31）的激光二极管（3），以及具有正方向的同波长光分路器（1）。 同波长分光器（1）包括第一双折射片（11），半波片（12），45°法拉第旋转器（13）和第二双折射片（14），第二双折射片与第一双折射片 第一双折射片（11），它们沿着正方向并且垂直于正方向依次布置。 第一双折射片（11）的光轴与正方向的夹角为α，其中0°<α<90°; 半波片（12）的e轴与第一双折射片（11）的主截面之间的角度为β，其中β= 22.5°或β= 67.5°。 入射光（21）沿着正方向通过同一波长的分光器（1） 出射光（31）沿着与正方向相反的方向通过同一波长的分光器（1） 出射光（31）是偏振方向与第一双折射板（11）的主截面垂直的直线偏振光。 单光纤组件在理论上实现了同波长单光纤双向的无损传输，并且实现了高发射光功率和接收器灵敏度。

    Fiber optic collimator array syste, and manufacturing method of the fiber optic collimator array system
    9.
    发明公开
    Fiber optic collimator array syste, and manufacturing method of the fiber optic collimator array system 有权
    Herstellungsverfahrenfürein Glasfaser-Kollimatoranordnungssystem

    公开(公告)号：EP2386887A1

    公开(公告)日：2011-11-16

    申请号：EP11177327.1

    申请日：2005-04-05

    申请人： Toyo Glass Co., Ltd.

    发明人： The designation of the inventor has not yet been filed

    IPC分类号： G02B6/32 ,  G02B3/00

    CPC分类号： G02B6/32 ,  G02B6/2551 ,  G02B6/2746 ,  G02B6/2937 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/3652 ,  G02B6/3676

    摘要： A fiber optic collimator system, a fiber optic collimator array, and a fiber optic collimator array system, which can reduce difficulty in an alignment process, minimize a coupling loss, and prevent the optical characteristics from deteriorating.
    An optical fiber is fused to one end of a GRIN lens made of quartz glass containing one or more selected from Sb 2 O 3 , Ta 2 O 5 , TiO 2 and ZrO 2 as a refractive index regulating substance, to form an optical fiber with a GRIN lens. Since an adhesive is not used, the core alignment of the GRIN lens and the optical fiber can be facilitated by a self alignment effect without deteriorating the optical characteristics. Moreover, the coupling loss is remarkably reduced by appropriately setting a refractive index distribution constant g of the GRIN lens. By fabricating the fiber optic collimator system, the fiber optic collimator array, the fiber optic collimator array system using the optical fiber with a GRIN lens can reduce the difficulty in the core alignment process, minimize the coupling loss, and prevent the optical characteristics from deteriorating.

    摘要翻译： 光纤准直器系统，光纤准直器阵列和光纤准直器阵列系统，其可以降低对准过程的难度，使耦合损耗最小化，并防止光学特性劣化。 将光纤熔融到由含有选自Sb 2 O 3，Ta 2 O 5，TiO 2和ZrO 2中的一种或多种作为折射率调节物质的石英玻璃制成的GRIN透镜的一端，以形成具有 GRIN镜头 由于不使用粘合剂，因此通过自对准效果可以促进GRIN透镜和光纤的芯取向，而不会使光学特性恶化。 此外，通过适当地设定GRIN透镜的折射率分布常数g，耦合损耗显着降低。 通过制造光纤准直器系统，光纤准直器阵列，使用具有GRIN透镜的光纤的光纤准直器阵列系统可以降低核心对准过程的难度，最小化耦合损耗，并防止光学特性恶化 。

    Depolarized infrared laser source
    10.
    发明授权
    Depolarized infrared laser source 有权
    消偏振红外激光辐射源

    公开(公告)号：EP1941590B1

    公开(公告)日：2011-06-22

    申请号：EP06796097.1

    申请日：2006-09-18

    申请人： Elbit Systems Electro-Optical Elop Ltd.

    发明人： SACKS, Zachary ,  SCHIFFER, Zeev

    IPC分类号： H01S3/067 ,  G02B6/26 ,  G02B6/14 ,  G02B6/036 ,  G01S7/481

    CPC分类号： H01S3/094003 ,  G02B6/036 ,  G02B6/14 ,  G02B6/2706 ,  G02B6/2746 ,  G02B6/325 ,  H01S3/067 ,  H01S3/094023 ,  H01S3/1616 ,  H01S3/2383 ,  H01S2301/00

    摘要： Fiber lasers for producing Band I wavelengths include a laser cavity having an optical fiber with specific parameters in length and thickness and doping concentration, and having high reflectivities. Examples show the feasibility of producing such fiber lasers. Fiber lasers for producing Band IV wavelengths include a depolarized laser oscillator, at least one amplifier and a polarizer. Depolarized laser oscillator is an inherently depolarized CW laser, or a depolarized laser diode, which is depolarized by a depolarizer. Additional fiber lasers in accordance with embodiments of the present invention include a double clad active optical fiber having a pump power entry point for sending pump energy through the active optical fiber in a first direction, and a loop portion at a second end of the fiber for sending pump energy through the active optical fiber in a second direction which is opposite to the first direction. A system for coupling light into a fiber in accordance with embodiments of the present invention include a first fiber, a second double clad fiber, and a bulk optic component positioned between the first and second fibers. A mode stripper included within the second fiber allows for removal of high power light which is propagated through the outer clad rather than launched into the core of the second fiber.