公开(公告)号：EP1783931A4

公开(公告)日：2007-11-28

申请号：EP04747396

申请日：2004-07-12

申请人： MITSUBISHI ELECTRIC CORP

发明人： ABE JUN ICHI ,  SHIMIZU KATSUHIRO ,  HASEGAWA TOSHIO ,  NISHIOKA TSUYOSHI ,  ISHIZUKA HIROKAZU

IPC分类号： H04B10/516 ,  H04B10/524 ,  H04B10/61 ,  H04B10/70 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  H04L9/08 ,  H04L9/12

CPC分类号： H04L9/0852 ,  G01J11/00 ,  H04B10/70 ,  H04J14/02

摘要： A photon detecting apparatus for use in a quantum encryption receiver apparatus or the like, wherein a plurality of photon detectors are used to improve the response speed of the photon detecting apparatus. There are included wavelength branching means (12) for branching a wavelength-multiplexed incident photon pulse sequence for each of wavelengths; a plurality of photon detectors (13-1, ···, 13-n) for detecting the photons as branched by the wavelength branching means (12); bias applying means (14) for applying gate pulses, as bias voltages, to the respective ones of the plurality of photon detectors (13-1, ···, 13-n) in conformity with the timings at which the output lights of the wavelength branching means (12) are incident on the plurality of photon detectors (13-1, ···, 13-n); and data processing means (15) for converting the detection signals from the plurality of photon detectors (13-1, ···, 13-n) to time series signals.

摘要翻译： 一种用于量子加密接收机装置等的光子检测装置，其中使用多个光子检测器来提高光子检测装置的响应速度。 包括波长分支装置（12），用于分支每个波长的波长复用入射光子脉冲序列; 多个光子检测器（13-1，...，13-n），用于检测由波长分支装置（12）分支的光子; 偏置施加装置（14），用于根据所述多个光子检测器（13-1，...，13-n）中的输出光的定时将栅极脉冲作为偏置电压施加到所述多个光子检测器 波长分支装置（12）入射到多个光子检测器（13-1，...，13-n）上。 和数据处理装置（15），用于将来自多个光子检测器（13-1，...，13-n）的检测信号转换成时间序列信号。

公开(公告)号：EP1811693A4

公开(公告)日：2009-01-07

申请号：EP04822365

申请日：2004-11-08

申请人： MITSUBISHI ELECTRIC CORP

发明人： ABE JUN ICHI ,  SHIMIZU KATSUHIRO

IPC分类号： H04B10/516 ,  G02F1/015 ,  H01S3/10 ,  H04B10/07 ,  H04B10/293 ,  H04B10/564 ,  H04B10/572 ,  H04B10/61 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/50575 ,  G02F1/0123 ,  H04B10/07957 ,  H04B10/505 ,  H04B10/5057 ,  H04B10/50572 ,  H04B10/50593 ,  H04B10/50595 ,  H04B10/572

摘要： An optical transmitter and an optical communication system comprising it imparted with a wavelength independent function. The optical communication system comprises an optical modulator (11), a photocoupler (12) for branching the optical output signal from the optical modulator, a cross-point monitor means (13) for receiving one optical signal branched by the photocoupler and monitoring the cross-point of the optical output signal from the optical modulator, a reference value setting means (14) for setting such a bias reference value to be imparted to the optical modulator as the cross-point becomes constant based on the output signal from the cross-point monitor means, and a bias circuit (15) for applying a predetermined bias to the optical modulator based on the bias reference value outputted from the reference value setting means.