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公开(公告)号：US4796274A
公开(公告)日：1989-01-03
申请号：US13665
申请日：1987-02-12
申请人： Shigeyuki Akiba , Masashi Usami , Yukio Noda , Masatoshi Suzuki
发明人： Shigeyuki Akiba , Masashi Usami , Yukio Noda , Masatoshi Suzuki
CPC分类号： H01S5/1228 , H01S5/12 , H01S5/125
摘要： A semiconductor device with a distributed Bragg reflector is disclosed, in which periodic corrugations are formed between two semiconductor layers along the direction of travel of light. In accordance with the present invention, the periodic corrugations are formed by grid-like layers of a refractory material. The refractory material is an insulator, a refractory metal or a laminate member of an insulator and a refractory metal.
摘要翻译： 公开了一种具有分布式布拉格反射器的半导体器件，其中沿着光的行进方向在两个半导体层之间形成周期性波纹。 根据本发明，周期性波纹由耐火材料的格子状的层形成。 耐火材料是绝缘体，难熔金属或绝缘体和难熔金属的层叠构件。
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公开(公告)号：US4837526A
公开(公告)日：1989-06-06
申请号：US42433
申请日：1987-04-24
CPC分类号： G02F1/025 , G02F2001/0154 , G02F2001/0157 , G02F2203/25 , G02F2203/255
摘要： A semiconductor external modulator is disclosed in which the mode of polarization of incident light, the crystal plane of the substrate (the direction of application of an electrical field), the energy gap of the optical waveguide layer, and the direction of travel of light are determined so that, of variations in the real and imaginary parts of the refractive index of the optical waveguide layer which are caused by the application of the electric field to the semiconductor external optical modulator, the variation in the real part of the refractive index may be reduced to substantially zero.
摘要翻译： 公开了一种半导体外部调制器，其中入射光的偏振模式，衬底的晶面（施加电场的方向），光波导层的能隙以及光的行进方向是 确定为使得由于对半导体外部光学调制器施加电场而导致的光波导层的折射率的实部和虚部的变化，折射率的实部的变化可以是 降至基本为零。
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3.发明授权Method for manufacturing semiconductor optical integrated device with optical waveguide regions 失效具有光波导区域的半导体光集成器件的制造方法
公开(公告)号：US4820655A
公开(公告)日：1989-04-11
申请号：US15953
申请日：1987-02-18
IPC分类号： H01L27/15 , G02B6/122 , G02F1/025 , H01S5/00 , H01S5/026 , H01S5/10 , H01S5/12 , H01L21/20 , H01L21/203 , H01L21/205
CPC分类号： H01S5/0265 , H01S5/1021 , H01S5/12
摘要： A method for manufacturing a semiconductor optical integrated device in which a semiconductor element A having an optical waveguide region and a semiconductor element B having another optical waveguide region are integrated on a single substrate. In accordance with the present invention, there is provided steps of growing the optical waveguide region of the semiconductor element A and a protective layer therefor are grown on the entire area of the substrate surface, selectively removing them from the substrate surface in the region to be ultimately occupied by the semiconductor element B, and forming in the region the optical waveguide region of the semiconductor element B through crystal growth.
摘要翻译： 一种半导体光学集成装置的制造方法，其中具有光波导区域的半导体元件A和具有另一个光波导区域的半导体元件B集成在单个基板上。 根据本发明，提供了在衬底表面的整个区域上生长半导体元件A的光波导区域和其保护层的步骤，从该区域中的衬底表面选择性地将其除去 最终由半导体元件B占据，并且通过晶体生长在该区域中形成半导体元件B的光波导区域。
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公开(公告)号：US4811353A
公开(公告)日：1989-03-07
申请号：US15954
申请日：1987-02-18
IPC分类号： G02B6/12 , G02F1/015 , G02F1/025 , H01S5/00 , H01S5/026 , H01S5/12 , H01S5/16 , H01S3/19 , H01S3/10
摘要： A semiconductor optical modulator is disclosed which is capable of high-speed modulation without the necessity of increasing the modulating voltage. The present invention has its feature in that the carrier density of the clad layer adjoining the optical waveguide layer 3 is gradually raised toward the p-n junction or Schottky junction, thereby increasing the width of the depletion layer to decrease the junction capacitance.
摘要翻译： 公开了一种能够高速调制而不需要增加调制电压的半导体光调制器。 本发明的特征在于，与光波导层3相邻的包层的载流子密度朝向p-n结或肖特基结逐渐升高，从而增加耗尽层的宽度以降低结电容。
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公开(公告)号：US4773075A
公开(公告)日：1988-09-20
申请号：US893484
申请日：1986-08-05
申请人： Shigeyuki Akiba , Katsuyuki Utaka , Yukio Noda , Masatoshi Suzuki
发明人： Shigeyuki Akiba , Katsuyuki Utaka , Yukio Noda , Masatoshi Suzuki
CPC分类号： H01S5/0265 , G02B6/42 , G02B6/4207 , H01S5/0085 , H01S5/02248 , H01S5/0261 , H01S5/12
摘要： There is disclosed a light emitting device comprising at least a semiconductor laser and an optical modulating element for modulating the output light from the semiconductor laser. In accordance with the present invention, a capacitive element for suppressing noise of the semiconductor laser arising from reflected light is disposed in parallel relation to current injection terminals of the semiconductor laser.
摘要翻译： 公开了一种至少包括半导体激光器和用于调制来自半导体激光器的输出光的光调制元件的发光器件。 根据本发明，用于抑制由反射光产生的半导体激光器的噪声的电容元件与半导体激光器的电流注入端平行设置。
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6.发明授权公开(公告)号：US06181449B2
公开(公告)日：2001-01-30
申请号：US09032537
申请日：1998-02-27
申请人： Hidenori Taga , Kaoru Imai , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Hidenori Taga , Kaoru Imai , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04J1402
CPC分类号： H04B10/2935 , H04B10/25073 , H04B10/25133 , H04J14/0221
摘要： A wavelength division multiplexed optical processing device and an optical communication transmission path which are capable of significantly improving the transmission characteristic of wavelength division multiplexed optical signals. A wavelength division multiplexed optical processing device is formed by a first arrayed optical waveguide for demultiplexing entered wavelength division multiplexed optical signals, and outputting demultiplexed optical signals; a plurality of correction units for correcting respective optical signals demultiplexed by the first arrayed optical waveguide; and a second arrayed optical waveguide for multiplexing optical signals corrected by the correction unit, and outputting multiplexed optical signals. An optical communication transmission path is formed by an optical transmission path; and at least one wavelength division multiplexed optical processing device using an arrayed optical waveguide having a transmission wavelength characteristic with a flat top shape, which is inserted into the optical transmission path at a prescribed interval.
摘要翻译： 能够显着提高波分复用光信号的传输特性的波分复用光处理装置和光通信传输路径。 波分复用光处理装置由第一阵列光波导形成，用于对输入的波分复用光信号进行解复用，并输出解复用的光信号; 多个校正单元，用于校正由第一阵列光波导解复用的各个光信号; 以及第二阵列光波导，用于复用由所述校正单元校正的光信号，并且输出复用的光信号。 光通信传输路径由光传输路径形成; 以及使用具有平坦顶部形状的透射波长特性的排列光波导的至少一个波分复用光学处理装置，其以规定的间隔插入到光传输路径中。
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公开(公告)号：US5892608A
公开(公告)日：1999-04-06
申请号：US770455
申请日：1996-12-20
IPC分类号： G02F1/35 , H04B10/2507 , H04B10/2513 , H04B10/40 , H04B10/50 , H04B10/508 , H04B10/556 , H04B10/58 , H04B10/60 , H04J14/08 , H04B10/06
CPC分类号： H04B10/25077 , H04J14/08
摘要： An optical transmitter which reverses the ON-OFF state of the optical intensity of a bright soliton lightwave and generates a dark soliton lightwave having an optical phase shift, an optical receiver for the dark soliton lightwave, and a superfast, high-capacity optical transmission system which is capable of increasing the soliton pulse array density while suppressing timing jitter. The optical transmission system is provided with the optical transmitter which transmits a dark soliton lightwave having digital information, the optical receiver which receives the dark soliton lightwave as a return-to-zero pulse and a transmission optical fiber interconnecting the transmitter and the receiver. The system has a construction in which the transmission optical fiber has, at the wavelength of the transmission lightwave, a normal dispersion value which makes negative the average wavelength dispersion value over the entire length of the optical fiber, and the average value of the wavelength dispersion value and the optical output intensity of the transmission optical fiber have values so that a non-linear optical effect and a wavelength dispersion effect, which are exerted on the transmission lightwave, are balanced with each other.
摘要翻译： 一种光发射器，其反转明亮的孤子光波的光强度的ON-OFF状态并产生具有光学相移的暗孤子光波，用于暗孤子光波的光接收器，以及超快大容量光传输系统 其能够在抑制定时抖动的同时增加孤子脉冲阵列密度。 光传输系统设置有发射具有数字信息的暗孤子光波的光发射机，接收暗孤子光波作为归零脉冲的光接收机和互连发射机和接收机的传输光纤。 该系统具有这样的结构，其中传输光纤在传输光波长的波长处具有在光纤的整个长度上使平均波长色散值为负的正常色散值，并且波长色散的平均值 值和发射光纤的光输出强度具有使得施加在透射光波上的非线性光学效应和波长色散效应彼此平衡的值。
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公开(公告)号：US5629795A
公开(公告)日：1997-05-13
申请号：US521973
申请日：1995-08-31
申请人： Masatoshi Suzuki , Itsuro Morita , Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Shigeyuki Akiba
发明人： Masatoshi Suzuki , Itsuro Morita , Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Shigeyuki Akiba
IPC分类号： H04B10/2507 , H04B10/2525 , H04B10/29 , H04B10/291 , H01S3/00 , H04B10/02
CPC分类号： H04B10/25253
摘要： An optical amplifying-repeating transmission system is disclosed which is composed of an optical fiber for transmitting a lightwave signal with digital information added to return-to-zero lightwave pulses and a plurality of optical amplifying repeaters inserted in the optical fiber for transmission use. The mean value of wavelengths at which the wavelength dispersion of the optical fiber is zero is smaller than the wavelength of the lightwave signal which is transmitted over the system. The accumulated wavelength dispersion value of the optical fiber tends to increase with the distance of transmission, from a macroscopic viewpoint. The optical fiber for transmission is divided into a plurality of sections. In accordance with the accumulated wavelength dispersion value of the optical fiber in each section except at least the last one, a wavelength dispersion medium, which locally changes the wavelength dispersion in a manner to cancel the accumulated wavelength dispersion in the section at the wavelength of the lightwave signal, is inserted in the section to eliminate the accumulation of the timing jitter.
摘要翻译： 公开了一种光放大重复传输系统，其由用于传输光波信号的光纤与添加到归零光波脉冲的数字信息以及插入光纤中的多个光放大中继器组成，用于传输使用。 光纤的波长色散为零的波长的平均值小于在系统上传输的光波信号的波长。 从宏观的观点来看，光纤的累积波长色散值随着透射距离而增加。 用于传输的光纤被分成多个部分。 根据除了至少最后一个部分之外的每个部分中的光纤的累积波长色散值，波长色散介质以局部改变波长色散的方式来消除在波长的波长处的部分中的累积波长色散 光波信号，插入该部分以消除定时抖动的累积。
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公开(公告)号：US06188508B1
公开(公告)日：2001-02-13
申请号：US09324395
申请日：1999-06-03
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H04B10/0775 , H04B10/0777 , H04B2210/074 , H04B2210/078
摘要： A control signal superimposer for superimposing a control signal on a signal light, comprising a pumping light source for generating a pumping light with intensity fluctuation in accordance with the control signal; a Raman amplification medium pumped by the pumping light from the pumping light source for Raman-amplifying the signal light; a combiner for combining the pumping light output from the pumping light source and the signal light to be Raman-amplified and then supplying them to the Raman amplification medium; and an optical filter for extracting the signal light component from the output light of the Raman amplification medium and terminating the pumping light component.
摘要翻译： 一种用于将控制信号叠加在信号光上的控制信号叠加器，包括用于根据控制信号产生强度波动的泵浦光的泵浦光源; 由来自泵浦光源的泵浦光泵浦拉曼放大信号光的拉曼放大介质; 组合器，用于将从泵浦光源输出的泵浦光与要拉曼放大的信号光组合，然后将其提供给拉曼放大介质; 以及用于从拉曼放大介质的输出光提取信号光分量并终止泵浦光分量的滤光器。
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公开(公告)号：US6021235A
公开(公告)日：2000-02-01
申请号：US127564
申请日：1998-07-31
IPC分类号： H04J14/00 , G02B6/02 , H04B10/2507 , H04B10/2525 , H04J14/02 , G02B6/28
CPC分类号： H04B10/2525 , H04B2210/252 , H04B2210/254
摘要： A new two-way WDM optical transmission system is provided. The WDM optical transmission system comprises a two-way optical fiber cable, a first dispersion compensation optical fiber (DCOF) connected to one end of the optical fiber cable, a second DCOF connected to another end of the optical fiber cable, a chromatic dispersion compensating transmitter unit and a chromatic dispersion compensating receiver unit. The two-way optical fiber cable comprises a plurality of segments. The first DCOF is connected to one end of the optical fiber cable and has a compensation amount of a half of a one segment dispersion D.sub.c of the optical fiber cable. The second DCOF is connected to another end of the optical fiber cable and has the compensation amount of the half of the one segment dispersion D.sub.c. And the chromatic dispersion compensating transmitter unit compensates accumulated residual chromatic dispersions to be caused by higher-order wavelength dispersion of the optical fiber cable at each signal wavelength. Further, the chromatic dispersion compensating receiver unit compensates accumulated residual chromatic dispersions caused by higher-order wavelength dispersion of the optical fiber cable at each signal wavelength. The chromatic dispersion compensating transmitter unit has a plurality of optical transmitters, a multiplexer combining a plurality of different wavelength bands and a plurality of chromatic dispersion compensators. And the chromatic dispersion compensating receiver unit has a demultiplexer, a plurality of optical receiver and a plurality of chromatic dispersion compensators.
摘要翻译： 提供了一种新的双向WDM光传输系统。 WDM光传输系统包括双向光纤电缆，连接到光纤电缆的一端的第一色散补偿光纤（DCOF），连接到光纤电缆的另一端的第二DCOF，色散补偿 发射单元和色散补偿接收单元。 双向光缆包括多个段。 第一DCOF连接到光纤电缆的一端，并且具有光纤电缆的一个分段色散Dc的补偿量的一半。 第二DCOF连接到光纤电缆的另一端，并且具有一个分段分散体Dc的一半的补偿量。 并且色散补偿发送单元补偿在每个信号波长处由光纤电缆的高阶波长色散引起的累积残余色散。 此外，色散补偿接收单元补偿由每根信号波长的光纤缆线的高阶波长色散引起的累积的残留色散。 色散补偿发射器单元具有多个光发射器，多个组合多个不同波长带的多路复用器和多个色散补偿器。 并且色散补偿接收单元具有解复用器，多个光接收器和多个色散补偿器。
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