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公开(公告)号：US06717710B2
公开(公告)日：2004-04-06
申请号：US10046349
申请日：2002-01-14
IPC分类号： G02F107
CPC分类号： G02F1/025
摘要： An electro-modulating device for modulating light from a light source, as part of an opto-electronic communication network has a modulating medium for modulating light passing therethrough by varying an electric field applied across the modulating medium, an optical input-output surface, a light reflector, and electrodes for applying the varying electric field across the modulating medium. The input-output surface, the medium and the reflector are arranged so that light enters the medium through the input-output surface, travels through the medium towards the reflector, is reflected by the reflector to travel back through the medium towards the input-output surface, and exits the medium through the input-output surface. The electric field is transverse to light traversing the medium between the input-out surface and the reflector, to make it easier to couple an optic fiber to the input-output surface of the modulating medium.
摘要翻译： 用于调制来自光源的光作为光电通信网络的一部分的电调制装置具有用于通过改变施加在调制介质上的电场来调制通过其中的光的调制介质，光输入输出表面， 光反射器和用于在调制介质上施加变化的电场的电极。 输入输出表面，介质和反射器被布置成使得光通过输入 - 输出表面进入介质，穿过介质朝着反射器行进，被反射器反射回到通过介质朝向输入 - 输出 表面，并通过输入 - 输出表面离开介质。 电场横穿于穿过输入表面和反射器之间的介质的光，使得更容易将光纤耦合到调制介质的输入 - 输出表面。
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公开(公告)号：US06882780B2
公开(公告)日：2005-04-19
申请号：US10245421
申请日：2002-09-17
CPC分类号： B82Y20/00 , G02B6/12004 , G02B6/12007 , G02B6/1225 , G02F1/315 , H01S5/06258 , H01S5/105 , H01S5/1071 , H01S5/5054 , H01S5/509
摘要： An optical device having a photonic band gap element operative such that the refractive index can be varied through application of an electrical signal. This enables the manufacture of tuneable lasers, optical add/drop multiplexers and tuneable optical wavelength converters.
摘要翻译： 一种具有光子带隙元件的光学器件，其操作使得可以通过施加电信号来改变折射率。 这使得可以制造可调激光器，光分插复用器和可调谐光波长转换器。
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公开(公告)号：US06717709B2
公开(公告)日：2004-04-06
申请号：US10197935
申请日：2002-07-17
IPC分类号： G02F101
CPC分类号： G02F1/0123 , G02F2001/0157 , G02F2201/58
摘要： An electro absorption modulator in which the photocurrent generated by the absorption of light is monitored and the bias voltage applied to the electro absorption modulator is varied in order to vary the photocurrent and thence the extinction ratio of the electro absorption modulator.
摘要翻译： 监测通过吸收光产生的光电流并且施加到电吸收调制器的偏置电压发生变化的电吸收调制器，以便改变光电流，从而改变电吸收调制器的消光比。
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公开(公告)号：US06778577B2
公开(公告)日：2004-08-17
申请号：US10348142
申请日：2003-01-21
IPC分类号： H01S500
CPC分类号： H01S5/1021 , H01S5/02248 , H01S5/0607 , H01S5/068 , H01S5/06804 , H01S5/06837 , H01S5/0687 , H01S5/1017
摘要： Controlling or stabilising the lasing wavelength of a source of laser radiation, wherein the source of laser radiation comprises a semiconductor material laser, a substrate to which the laser is mounted, a resonant optical cavity within the semiconductor material, the cavity having an active medium for generating laser radiation and one or more gaps in the semiconductor material within the cavity, wherein the substrate is deformable by the application of a mechanical stress to vary the size of the gap(s) in order to change the optical size of the gap(s) and hence to vary the wavelength of laser radiation generated by the semiconductor laser.
摘要翻译： 控制或稳定激光辐射源的激光波长，其中激光辐射源包括半导体材料激光器，安装激光器的衬底，半导体材料内的谐振光学腔，腔体具有用于 产生激光辐射和腔内的半导体材料中的一个或多个间隙，其中基板通过施加机械应力而变形，以改变间隙的尺寸，以便改变间隙的光学尺寸（s ），并且因此改变由半导体激光器产生的激光辐射的波长。
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公开(公告)号：US06055102A
公开(公告)日：2000-04-25
申请号：US155265
申请日：1998-09-24
CPC分类号： G02F1/093 , G02B6/4208 , Y10S372/703
摘要： An optical isolator (1) includes an isolator element (4) having an optical axis and a Faraday rotator (6) and at least one polarizer (7a, 7b) and a magnet (2). The magnet (2) is an open-core magnet shaped so that when placed on a substantially planar surface an orifice (3) is defined by the magnet (2) and the substantially planar surface. The isolator element (4) is located within the orifice so that the optical axis passes through the orifice. Such an isolator is well adapted for use in semiconductor laser modules.
摘要翻译： PCT No.PCT / GB97 / 00967 Sec。 371日期：1998年9月24日 102（e）1998年9月24日PCT PCT 1997年4月7日提交PCT公布。 WO97 / 44700 PCT出版物 日期1997年11月27日光隔离器（1）包括具有光轴的隔离元件（4）和法拉第转子（6）和至少一个偏振器（7a，7b）和磁体（2）。 磁体（2）是一种开芯磁体，其形状使得当放置在基本平坦的表面上时，孔（3）由磁体（2）和基本平坦的表面限定。 隔离元件（4）位于孔内，使得光轴通过孔口。 这种隔离器适用于半导体激光器模块。
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公开(公告)号：US06961128B2
公开(公告)日：2005-11-01
申请号：US10325053
申请日：2002-12-20
IPC分类号： G01J9/04 , H01S5/0687 , H04B10/00 , H04B10/02 , H04B10/079 , H04B10/08 , H04B10/12 , H04B10/155 , H04B10/572 , H04B10/85 , G01B9/02
CPC分类号： G01J9/04 , H01S5/0687 , H04B10/07951 , H04B10/572 , H04B10/85
摘要： An apparatus for detecting cross-talk and method therefore, wherein a first and a second output signal from a wavelength selective device are directed to be coincident upon a photodetector. A homodyne beat signal results from the coincidence of the first and the second output signal and the homodyne beat signal is used to measure wavelength drift.
摘要翻译： 一种用于检测串扰的装置和方法，其中来自波长选择装置的第一和第二输出信号指向在光电检测器上重合。 零差拍信号是由第一和第二输出信号的一致产生的，并且使用零差拍信号来测量波长漂移。
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公开(公告)号：US06919963B2
公开(公告)日：2005-07-19
申请号：US10325178
申请日：2002-12-20
IPC分类号： G01J9/04 , H01S5/0687 , H04B10/00 , H04B10/02 , H04B10/079 , H04B10/08 , H04B10/12 , H04B10/155 , H04B10/572 , H04B10/85 , G01B9/02
CPC分类号： G01J9/04 , H01S5/0687 , H04B10/07957 , H04B10/572 , H04B10/85
摘要： A laser wavelength locking control loop apparatus comprising a wavelength selective device and a photodetector, coupled to a feedback controller circuit. Electromagnetic radiation emitted by the laser device is provided to the wavelength selective device which provides a first output signal at a first wavelength and a second output signal at a second wavelength. The first and second output signals are directed to the photodetector so as to coincide when incident thereupon. A beat signal results from the coincidence of the first and second output signals and this is used to measure wavelength drift.
摘要翻译： 一种激光波长锁定控制环路装置，包括耦合到反馈控制器电路的波长选择装置和光电检测器。 由激光装置发射的电磁辐射提供给提供第一波长的第一输出信号和第二波长的第二输出信号的波长选择装置。 第一和第二输出信号被引导到光电检测器，以便当它们入射时一致。 差拍信号是由第一和第二输出信号的一致产生的，这用于测量波长漂移。
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公开(公告)号：US06590693B2
公开(公告)日：2003-07-08
申请号：US09861981
申请日：2001-05-16
IPC分类号： G02F103
CPC分类号： H01S5/06804 , G02F1/0123 , H01S5/02 , H01S5/0265 , H01S5/125 , H04B10/505
摘要： The present invention relates to a modulated light source, in particular for use as part of an opto-electronic communication network. The modulated light source has a laser and an external electro-optic modulator for modulating the intensity of light produced by the laser. A temperature sensor senses the temperature of the laser and the modulator. A control circuit connected to the temperature sensor adjusts the bias on the modulator so that the band edge of the modulator follows the changes in wavelength of the laser as the laser warms up during operation. This avoids the need for a cooling element to keep the temperature of the laser constant.
摘要翻译： 本发明涉及调制光源，特别是用作光电通信网络的一部分。 调制光源具有用于调制由激光产生的光的强度的激光和外部电光调制器。 温度传感器检测激光器和调制器的温度。 连接到温度传感器的控制电路调节调制器上的偏置，使得当操作期间激光加热时，调制器的带边缘跟随激光器的波长的变化。 这避免了冷却元件需要保持激光器的温度恒定。
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