公开(公告)号：US07555215B2

公开(公告)日：2009-06-30

申请号：US10535526

申请日：2004-05-28

申请人： Hirotaka Nakamura ,  Junichi Kani ,  Hiroo Suzuki ,  Mitsuhiro Teshima ,  Ukyo Yamaguchi ,  Hidetaka Onishi ,  Katsumi Iwatsuki

发明人： Hirotaka Nakamura ,  Junichi Kani ,  Hiroo Suzuki ,  Mitsuhiro Teshima ,  Ukyo Yamaguchi ,  Hidetaka Onishi ,  Katsumi Iwatsuki

IPC分类号： H04J14/00 ,  H04B10/08

CPC分类号： H04J14/0294 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0282 ,  H04J14/0283

摘要： A dual structure for a multiplexing section extended to an OSU is obtained without adding a dynamic function, such as an optical switch, to a W-MULDEM. The W-MULDEM of an optical wavelength division multiplexing access system divides, among ports corresponding to the individual ONUs, downstream optical signals having wavelengths λd1 to λdn, which are received along a current-use optical fiber, or downstream optical signals having wavelengths λd1+Δλ to λdn+Δλ, which are received along a redundant optical fiber. The W-MULDEM also multiplexes, for the port that corresponds to the current-use optical fiber or the redundant optical fiber, upstream optical signals having wavelengths λu1 to λun or wavelengths λu1+Δλ to λun+Δλ, which are received along optical fibers corresponding to the ONUs. A wavelength difference between the downstream optical signal and the upstream optical signal that are consonant with each ONU is defined as an integer times the FSR of an AWG.

摘要翻译： 获得扩展到OSU的复用部分的双重结构，而不向诸如光开关的动态功能添加到W-MULDEM。 光波分复用接入系统的W-MULDEM在对应于各个ONU的端口中，沿着当前使用的光纤接收波长为lambdad1至lambdadn的下行光信号，或者具有波长lambdad1 + Deltalambda到lambdadn + Deltalambda，沿冗余光纤接收。 对于与当前使用的光纤或冗余光纤对应的端口，W-MULDEM还将具有波长lambdau1至lambdaun或波长lambdau1 + Deltalambda的上行光信号复用到λun+ Deltalambda，沿着光纤对应接收 到ONU。 与每个ONU相关联的下行光信号和上行光信号之间的波长差定义为AWG的FSR的整数倍。

公开(公告)号：US20060062576A1

公开(公告)日：2006-03-23

申请号：US10535526

申请日：2004-05-28

申请人： Hirotaka Nakamura ,  Junichi Kani ,  Hiroo Suzuki ,  Mitsuhiro Teshima ,  Ukyo Yamaguchi ,  Hidetaka Onishi ,  Katsumi Iwatsuki

发明人： Hirotaka Nakamura ,  Junichi Kani ,  Hiroo Suzuki ,  Mitsuhiro Teshima ,  Ukyo Yamaguchi ,  Hidetaka Onishi ,  Katsumi Iwatsuki

IPC分类号： H04J14/00

CPC分类号： H04J14/0294 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0282 ,  H04J14/0283

摘要： A dual structure for a multiplexing section extended to an OSU is obtained without adding a dynamic function, such as an optical switch, to a W-MULDEM. The W-MULDEM of an optical wavelength division multiplexing access system divides, among ports corresponding to the individual ONUs, downstream optical signals having wavelengths λd1 to λdn, which are received along a current-use optical fiber, or downstream optical signals having wavelengths λd1+Δλ to λdn+Δλ, which are received along a redundant optical fiber. The W-MULDEM also multiplexes, for the port that corresponds to the current-use optical fiber or the redundant optical fiber, upstream optical signals having wavelengths λu1 to λun or wavelengths λu1+Δλ to λun+Δλ, which are received along optical fibers corresponding to the ONUs. A wavelength difference between the downstream optical signal and the upstream optical signal that are consonant with each ONU is defined as an integer times the FSR of an AWG.

摘要翻译： 获得扩展到OSU的复用部分的双重结构，而不向诸如光开关的动态功能添加到W-MULDEM。 光波分复用接入系统的W-MULDEM在对应于各个ONU的端口中，沿着当前使用的光纤接收波长为lambdad1至lambdadn的下行光信号，或者具有波长lambdad1 + Deltalambda到lambdadn + Deltalambda，沿冗余光纤接收。 对于与当前使用的光纤或冗余光纤对应的端口，W-MULDEM还将具有波长lambdau1至lambdaun或波长lambdau1 + Deltalambda的上行光信号复用到λun+ Deltalambda，沿着光纤对应接收 到ONU。 与每个ONU相关联的下行光信号和上行光信号之间的波长差定义为AWG的FSR的整数倍。