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公开(公告)号:US07957646B2
公开(公告)日:2011-06-07
申请号:US11330265
申请日:2006-01-12
申请人: Masatoshi Kagawa
发明人: Masatoshi Kagawa
IPC分类号: H04B10/04 , H04B10/152 , H04B10/06 , G02F1/01 , G02F1/13
CPC分类号: H04B10/508 , G02B6/29356 , G02B6/29398 , H04J14/08
摘要: The optical time division multiplexer generates a time-division-multiplexed optical signal by time-division-multiplexing optical signals of a plurality of channels, the carrier-wave phases of which are shifted with respect to one another. The circulator guides the multiplexed optical signals split by the optical splitter to the optical interference device and the superimposed light outputted from the optical interference device is guided to the optical intensity detector. The optical interference device extends the pulse width of the multiplexed optical signal to a width equal to or more than the bit interval and superimposes the extended light of an adjacent bit onto the extended light. The optical intensity detector detects the intensity of the superimposed light outputted by the optical interference device. The temperature regulator controls the temperature of the modulator so that the phase difference of the carrier waves constituting the optical signal trains is to be a half wavelength.
摘要翻译: 光时分复用器通过对其载波相位彼此相移的多个信道的光信号进行时分复用来产生时分多路复用光信号。 循环器将由光分路器分离的复用光信号引导到光干涉装置,并将从光干涉装置输出的叠加光引导到光强度检测器。 光干涉装置将复用的光信号的脉冲宽度扩大到等于或大于比特间隔的宽度,并将相邻比特的扩展光叠加到扩展的光上。 光强度检测器检测由光学干涉装置输出的叠加光的强度。 温度调节器控制调制器的温度,使构成光信号列的载波的相位差为半波长。
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公开(公告)号:US07898521B2
公开(公告)日:2011-03-01
申请号:US11213659
申请日:2005-08-26
IPC分类号: G09G3/34
CPC分类号: G02B26/001 , G02B6/29356 , G09G3/3466 , Y10T29/49002
摘要: Embodiments include devices and methods for wavelength filtering. For example, one embodiment includes a display comprising a plurality of the display elements each comprising a movable reflector, a first partial reflector, and a second partial reflector. The first partial reflector is positioned at a first distance from the movable reflector and forms a first optical resonant cavity therebetween. The second partial reflector is positioned at a second distance from said first partial reflector and forming a second optical resonant cavity therebetween. In various embodiments, the movable reflector is movable with respect to the first partial reflector to alter the first optical cavity. Other embodiments include a method of making devices.
摘要翻译: 实施例包括用于波长过滤的装置和方法。 例如,一个实施例包括包括多个显示元件的显示器,每个显示元件包括可移动反射器,第一部分反射器和第二部分反射器。 第一部分反射器位于与可移动反射器第一距离处,并在其间形成第一光学谐振腔。 第二部分反射器位于离所述第一部分反射体的第二距离处,并在其间形成第二光学谐振腔。 在各种实施例中,可移动反射器可相对于第一部分反射器移动以改变第一光学腔。 其他实施例包括制造设备的方法。
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公开(公告)号:US07142756B2
公开(公告)日:2006-11-28
申请号:US10123072
申请日:2002-04-12
申请人: Emilia Anderson , Wesley A. King , Yoel Fink , Lori Pressman
发明人: Emilia Anderson , Wesley A. King , Yoel Fink , Lori Pressman
CPC分类号: G02B6/021 , B29D11/00721 , C03B37/027 , C03B37/02718 , C03B37/029 , C03B37/0756 , C03B2201/10 , C03B2201/28 , C03B2201/30 , C03B2201/32 , C03B2201/34 , C03B2201/50 , C03B2201/54 , C03B2201/60 , C03B2201/82 , C03B2201/86 , C03B2203/14 , C03B2203/16 , C03B2203/18 , C03B2203/223 , C03B2203/225 , C03B2203/42 , C03B2205/08 , C03B2205/09 , C03B2205/10 , C03B2205/40 , C03B2205/72 , C03C3/064 , C03C3/07 , C03C3/072 , C03C3/102 , C03C3/122 , C03C3/142 , C03C3/16 , C03C3/321 , C03C3/326 , C03C13/008 , C03C13/041 , C03C13/042 , C03C13/043 , C03C13/044 , C03C13/046 , C03C13/048 , C03C25/105 , C03C25/1061 , G02B6/02 , G02B6/02052 , G02B6/02066 , G02B6/02123 , G02B6/02261 , G02B6/023 , G02B6/02304 , G02B6/03694 , G02B6/126 , G02B6/29319 , G02B6/29356 , G02B6/30 , G02B6/305 , G02B6/42 , G02B6/4206 , G02B2006/12116 , G02B2006/12195 , G02F1/0115 , G02F1/365 , H01S3/06729
摘要: In one aspect, the invention features a fiber waveguide having a waveguide axis, including a first portion extending along the waveguide axis, and a second portion different from the first portion extending along the waveguide axis surrounding the first portion, wherein at least one of the first and second portions comprises a chalcogenide glass selected from the group consisting of Selenium chalcogenide glasses and Tellurium chalcogenide glasses, both the first and second portions have a viscosity greater than 103 Poise at some temperature, T, and the fiber waveguide is a photonic crystal fiber.
摘要翻译: 一方面,本发明的特征在于具有波导轴线的光纤波导,其包括沿着波导轴线延伸的第一部分,以及不同于围绕第一部分的波导轴延伸的第一部分的第二部分,其中至少一个 第一和第二部分包括选自硫属硫族化合物玻璃和硫化碲化镉玻璃的硫属化物玻璃,第一和第二部分的粘度大于10℃,在某些温度T和 光纤波导是光子晶体光纤。
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14.
公开(公告)号:US6056436A
公开(公告)日:2000-05-02
申请号:US25848
申请日:1998-02-19
申请人: James S. Sirkis , Harmeet Singh
发明人: James S. Sirkis , Harmeet Singh
CPC分类号: G01L1/241 , G01D5/35312 , G01K11/3206 , G01L1/246 , G02B6/29356 , G02B6/29359
摘要: Cascaded waveguide sensors with different sensitivities to temperature and strain produce independent temperature and strain measurements. In one embodiment a first sensor is formed of a first optical material having a corresponding first sensible thermomechanical response and a second sensor is formed of a second optical material having a corresponding second sensible thermomechanical response. The first and second thermomechanical responses are sufficiently different so as to produce independent temperature and strain measurements. Particular embodiments employ intrinsic or extrinsic Fabry-Perot interferometers (IFP, EFP),sensors, in-line fiber etalon (ILFE) sensor and a fiber-optic Bragg grating.
摘要翻译: 具有不同温度和应变灵敏度的级联波导传感器产生独立的温度和应变测量。 在一个实施例中,第一传感器由具有对应的第一显性热机械响应的第一光学材料形成,并且第二传感器由具有相应的第二显性热机械响应的第二光学材料形成。 第一和第二热机械响应是充分不同的,以便产生独立的温度和应变测量。 特定实施例采用内在或外在的法布里 - 珀罗干涉仪(IFP,EFP),传感器,直列光纤标准具(ILFE)传感器和光纤布拉格光栅。
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公开(公告)号:US5659644A
公开(公告)日:1997-08-19
申请号:US659853
申请日:1996-06-07
申请人: David John DiGiovanni , Stephen Gregory Grubb , Daryl Inniss , Ralph Stephen Jameson , Kenneth Lee Walker
发明人: David John DiGiovanni , Stephen Gregory Grubb , Daryl Inniss , Ralph Stephen Jameson , Kenneth Lee Walker
CPC分类号: G02B6/4215 , H01S3/094003 , G02B6/14 , G02B6/29356 , G02B6/2937 , G02B6/4207 , H01S3/0675 , H01S3/094069
摘要: In an optical fiber light source a section of multimode fiber is interposed between an energizing laser (e.g,, a diode laser) and a single mode fiber active medium. In a preferred embodiment the single mode fiber active medium is surrounded by a multimode cladding coupled to the multimode fiber. The source may serve as a pump laser for a fiber amplifier or as an amplified spontaneous emission source. Arrangements for coupling several energizing lasers to the active medium are also described.
摘要翻译: 在光纤光源中,将多模光纤的一部分介于激光激光器(例如,二极管激光器)和单模光纤活性介质之间。 在优选实施例中,单模光纤有源介质由耦合到多模光纤的多模包层围绕。 源可以用作光纤放大器的泵浦激光器或者作为放大的自发发射源。 还描述了将几个激励激光器耦合到活性介质的布置。
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公开(公告)号:US4726644A
公开(公告)日:1988-02-23
申请号:US752735
申请日:1985-07-08
申请人: Ronald F. Mathis
发明人: Ronald F. Mathis
IPC分类号: G02B6/28 , G02B6/34 , H04B10/152 , H04B10/207 , G02F1/00 , H04B9/00
CPC分类号: G02B6/29356 , G02B6/2852 , G02B6/29335 , H04B10/2725 , H04B10/54
摘要: A fiber optic data bus that includes a multiplexer means for generating a plurality of optical signals and for intensity modulating each of the optical signals in response to a respective one of a plurality of input RF signals each at a different RF carrier frequency to provide a plurality of intensity modulated optical signals. A signal collection means combines the plurality of intensity modulated optical signals into a combined optical signal. A conducting means conducts the combined optical signal to a signal distribution means which distributes the combined optical signal to each of a plurality of output ports. A demultiplexer means extracts from a portion of one of the distributed combined optical signals an output RF signal substantially identical to a predetermined one of the plurality of RF input signals.
摘要翻译: 一种光纤数据总线,其包括多路复用器装置,用于响应于多个输入RF信号中的相应一个,以不同的RF载波频率产生多个光信号并强调调制每个光信号,以提供多个 的强度调制光信号。 信号采集装置将多个强度调制光信号组合成组合光信号。 导电装置将组合的光信号传导到信号分配装置,其将组合的光信号分配到多个输出端口中的每一个。 解复用器装置从分布式组合光信号中的一个的一部分中提取与多个RF输入信号中的预定的一个RF输入信号基本相同的输出RF信号。
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公开(公告)号:US4358851A
公开(公告)日:1982-11-09
申请号:US125415
申请日:1980-02-28
CPC分类号: G02B6/4215 , G02B6/29361 , G02B6/29368 , H01S5/146 , G02B6/29356 , H01S5/005
摘要: A fiber optic device basically comprising an optical fiber/interference filter combination finds useful application in optical communication systems for wavelength selection or bandwidth selection from a multiwavelength light source or emitter. If the emitter is a semiconductor laser, the device may be also employed to provide single longitudinal mode control at the selected wavelength or bandpass.
摘要翻译: 基本上包括光纤/干涉滤光器组合的光纤设备在用于波长选择或来自多波长光源或发射器的带宽选择的光通信系统中发现有用的应用。 如果发射极是半导体激光器,则该器件也可用于在所选择的波长或带通处提供单纵向模式控制。
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公开(公告)号:US09709745B2
公开(公告)日:2017-07-18
申请号:US14786821
申请日:2014-04-17
发明人: Xuewen Shu , Miguel Angel Preciado
CPC分类号: G02B6/29353 , C03B37/14 , G01B2290/25 , G02B6/02085 , G02B6/02138 , G02B6/2861 , G02B6/29356 , G02B2006/02166 , G03F1/26
摘要: A delay line interferometer comprising an optical waveguide having a distributed Bragg reflector, e.g. Bragg grating, fabricated therein. The distributed Bragg reflector has a refractive index modulation with a period variation Λ(z) along its length z that is arranged to output in transmission an output optical signal fout(t) in response to a input optical signal fin(t), wherein the output optical signal fout(t) is the result of temporal interference between one or more time-delayed replicas of the input optical signal fin(t). In other words, the distributed Bragg reflector is operable to generate and permit temporal interference between two or more time-delayed replicas of the input optical signal fin(t). The invention may thus mimic the behaviour of one or more MZIs.
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公开(公告)号:US20160109657A1
公开(公告)日:2016-04-21
申请号:US14786821
申请日:2014-04-17
发明人: Xuewen SHU , Miguel Angel PRECIADO
CPC分类号: G02B6/29353 , C03B37/14 , G01B2290/25 , G02B6/02085 , G02B6/02138 , G02B6/2861 , G02B6/29356 , G02B2006/02166 , G03F1/26
摘要: A delay line interferometer comprising an optical waveguide having a distributed Bragg reflector, e.g. Bragg grating, fabricated therein. The distributed Bragg reflector has a refractive index modulation with a period variation Λ(z) along its length z that is arranged to output in transmission an output optical signal fout(t) in response to a input optical signal fin(t), wherein the output optical signal fout(t) is the result of temporal interference between one or more time-delayed replicas of the input optical signal fin(t). In other words, the distributed Bragg reflector is operable to generate and permit temporal interference between two or more time-delayed replicas of the input optical signal fin(t). The invention may thus mimic the behaviour of one or more MZIs.
摘要翻译: 一种延迟线干涉仪,包括具有分布式布拉格反射器的光波导。 布拉格光栅,其中制造。 分布式布拉格反射器具有沿其长度z的周期变化Λ(z)的折射率调制,其布置成响应于输入光信号fin(t)传输输出光信号fout(t),其中, 输出光信号fout(t)是输入光信号鳍(t)的一个或多个延时复制之间的时间干扰的结果。 换句话说,分布式布拉格反射器可操作以产生并允许输入光信号鳍(t)的两个或多个延时复制之间的时间干扰。 因此,本发明可以模拟一个或多个MZI的行为。
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公开(公告)号:US09239507B2
公开(公告)日:2016-01-19
申请号:US14510799
申请日:2014-10-09
申请人: Forelux Inc.
发明人: Shu-Lu Chen , Yun-Chung Na
CPC分类号: G02B6/29328 , G02B6/1226 , G02B6/124 , G02B6/29323 , G02B6/29356 , G02B6/30 , G02B6/34 , G02B2006/12104 , G02B2006/12107 , G02F1/025 , G02F1/2257
摘要: An apparatus including a waveguide region configured to guide light propagating along a first direction; a reflector region configured to reflect incident light; an interference region formed between the waveguide region and the reflector region, the interference region configured to confine at least a portion of interference light formed by the incident light and the reflected incident light; and a grating region including a grating formed on a region confining at least a portion of the interference light, the grating configured to couple at least a portion of the light along a second direction that is different from the first direction.
摘要翻译: 一种装置,包括:波导区域,被配置为引导沿着第一方向传播的光; 被配置为反射入射光的反射器区域; 在所述波导区域和所述反射器区域之间形成的干涉区域,所述干涉区域被配置为限制由所述入射光形成的干涉光的至少一部分和所述反射入射光; 以及光栅区域,包括形成在限定干涉光的至少一部分的区域上的光栅,所述光栅被配置为沿着与第一方向不同的第二方向耦合光的至少一部分。
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