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1.发明授权公开(公告)号：US06768872B1
公开(公告)日：2004-07-27
申请号：US09670003
申请日：2000-09-25
IPC分类号： H04J1402
CPC分类号： H04B10/25253
摘要： An optical transmitter outputs WDM signal lights comprising signal lights with 100 wavelengths of 10 Gbit/s, onto an optical transmission fiber. In the optical transmission line, a transmission fiber and a local area dispersion compensation fiber are disposed per repeater span defined by an optical amplification repeater, the local area dispersion compensation fiber is for compensating the average chromatic dispersion in the repeater span to become 2 ps/nm/km as well as a dispersion slope to become zero, and a wide area dispersion compensation fiber for compensating the average chromatic dispersion to become −0.2 ps/nm/km as well as the dispersion slope to become zero is disposed per predetermined number of optical repeater spans. The optical transmission fiber comprises a single mode optical fiber with large core diameter having a zero dispersion wavelength at a 1.3 &mgr;m band and plus chromatic dispersion at a signal wavelength band (a 1.55 &mgr;m band). The optical amplification repeater comprises an erbium-doped optical fiber to be pumped by a 0.98 &mgr;m band pumping light.
摘要翻译： 光发射机将包含10兆比特/秒波长的信号光的WDM信号灯输出到光传输光纤上。 在光传输线路中，在由光放大中继器限定的每个中继器跨度上布置传输光纤和局部色散补偿光纤，局部色散补偿光纤用于将中继器跨度中的平均色散补偿为2ps / nm / km以及色散斜率为零，并且将用于将平均色散补偿为-0.2ps / nm / km以及将色散斜率补偿为零的广域色散补偿光纤设置为每个预定数量的 光中继器。 光传输光纤包括在1.3mum波段处具有零色散波长的大芯径的单模光纤，并且在信号波长带（1.55μm波段）处加上色散。 光放大中继器包括一个掺铒光纤，通过0.98 mum带激发光泵浦。
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公开(公告)号：US06754420B2
公开(公告)日：2004-06-22
申请号：US10056999
申请日：2002-01-25
IPC分类号： G02B602
CPC分类号： H04B10/2525
摘要： An optical fiber transmission line for realizing satisfactory long haul transmission characteristics using two kinds of optical fibers. The optical fiber transmission line includes a plurality of local dispersion compensating spans, wide dispersion compensating spans disposed at predetermined intervals, and optical repeating amplifiers to connect each span. The local dispersion compensating span includes a first optical fiber with positive dispersion having an effective core area of 130 &mgr;m2 or more and a second optical fiber with a negative dispersion value of −50 ps/nm/km or less to transmit the light output from the first optical fiber. The wide dispersion compensating span consists of a third optical fiber having the same configuration and composition with the first optical fiber.
摘要翻译： 一种用于使用两种光纤实现令人满意的长距离传输特性的光纤传输线。 光纤传输线包括多个局部色散补偿范围，以预定间隔设置的宽色散补偿跨度以及连接每个跨度的光学重复放大器。 局部色散补偿范围包括具有130μm或更大的有效核心面积的正色散的第一光纤和具有-50ps / nm / km或更小的负色散值的第二光纤传输光 从第一光纤输出。 宽色散补偿范围由具有与第一光纤具有相同配置和组成的第三光纤组成。
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公开(公告)号：US06594428B1
公开(公告)日：2003-07-15
申请号：US09520481
申请日：2000-03-08
IPC分类号： G02B616
CPC分类号： H04B10/25253
摘要： A dispersion compensating optical transmission line comprises a plurality of optical transmission fibers for transmitting signal light, at least one first dispersion compensator disposed at a first dispersion compensating cycle for compensating an accumulated chromatic dispersion of the signal light so that an average chromatic dispersion is equal to a first desired value, and a plurality of second dispersion compensators disposed at a second dispersion compensating cycle shorter than the first dispersion compensating cycle for compensating the accumulated chromatic dispersion of the signal light so that an average chromatic dispersion is equal to a second desired value which absolute value is larger than that of the first desired value.
摘要翻译： 色散补偿光传输线包括用于传输信号光的多个光传输光纤，至少一个以第一色散补偿周期布置的第一色散补偿器，用于补偿信号光的累积色散，使得平均色散等于 第一期望值，以及多个第二色散补偿器，其布置在比第一色散补偿周期短的第二色散补偿周期，用于补偿信号光的累积色散，使得平均色散等于第二期望值， 绝对值大于第一个期望值的绝对值。
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4.发明授权公开(公告)号：US06744989B2
公开(公告)日：2004-06-01
申请号：US09848606
申请日：2001-05-02
IPC分类号： H04B1000
CPC分类号： H04B10/2935 , H04J14/0221
摘要： An object of this invention is to improve transmission characteristics in WDM transmission. An optical transmitter (10) wavelength-multiplexes signal lights of wavelengths &lgr;1 through &lgr;n and outputs them onto an optical transmission line (12). Optical powers of the signal lights of the respective wavelength &lgr;1 through &lgr;n are identical or become smaller proportional to the wavelength. One repeater span of the optical transmission line (12) is composed of an optical fibers (20, 22) and an optical amplifier (24), and a gain equalizer (26) is dispersed every several repeater spans. The optical amplifier (24) in the repeater span amplifies each signal light so that optical power of a signal on the shorter wavelength side becomes smaller than that of a signal on the longer wavelength side. The gain equalizer (26) equalizes optical powers of the respective signal lights.
摘要翻译： 本发明的目的是提高WDM传输中的传输特性。 光发射机（10）将波长λ1至兰博的信号光波长多路复用并输出到光传输线路（12）上。 相应波长λ1至lambdan的信号光的光功率与波长成比例相同或变小。 光传输线（12）的一个中继器跨度由光纤（20,22）和光放大器（24）组成，增益均衡器（26）每隔几个中继器分散。 中继器中的光放大器（24）放大每个信号光，使得较短波长侧的信号的光功率变得比较长波长侧的信号的光功率小。 增益均衡器（26）使各个信号灯的光功率相等。
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公开(公告)号：US06640026B2
公开(公告)日：2003-10-28
申请号：US09956573
申请日：2001-09-18
IPC分类号： G02B628
CPC分类号： G02B6/29386 , G02B6/12007 , G02B6/29344 , G02B6/29352
摘要： To realize an optical demultiplexer with a constant chromatic dispersion value, an optical signal of wavelength (&lgr;1) enters a port (A) of an optical circulator (10), and an optical signal of wavelength (&lgr;2) enters a port (A) of an optical circulator (12). A port (B) of the optical circulator (10) connects to a port (X0) of an interleaved optical filter (14), and a port (B) of the optical circulator (12) connects to a port (X1) of the optical filter (14). A port (Y0) of the optical filter (14) connects to a port (Y1) of the optical filter (14) through an optical isolator (16). The optical isolator (16) allows the optical propagation from the port (Y0) to the port (Y1) of the optical filter (14) and refuses the optical propagation from the port (Y1) to the port (Y0). An optical coupler (18) combines the input lights of the input ports (X0 and X1) from ports (C) of the optical circulators (10 and 12) and outputs from the output port (Y0). The optical filter (14) transmits wavelength (&lgr;1) in the straight propagation between the ports (X0, Y0) and between the ports (X1, Y1) and transmits wavelength (&lgr;2) in the cross propagation between the ports (X0, Y1) and between the ports (X1, Y0).
摘要翻译： 为了实现具有恒定色散值的光解复用器，波长（λ1）的光信号进入光环行器（10）的端口（A），并且波长（λ2）的光信号进入端口（A） 光循环器（12）。 光环行器（10）的端口（B）连接到交错滤光器（14）的端口（X0），并且光环行器（12）的端口（B）连接到 滤光器（14）。 滤光器（14）的端口（Y0）通过光隔离器（16）连接到滤光器（14）的端口（Y1）。 光隔离器（16）允许从端口（Y0）到滤光器（14）的端口（Y1）的光传播，并且拒绝从端口（Y1）到端口（Y0）的光传播。 光耦合器（18）将输入端口（X0和X1）的输入光与光循环器（10和12）的端口（C）和输出端口（Y0）的输出相结合。 光滤波器（14）在端口（X0，Y0）之间和端口（X1，Y1）之间的直线传播中传输波长（λ1），并且在端口（X0，Y1）之间的交叉传播中传输波长（λ2） 和端口（X1，Y0）之间。
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公开(公告)号：US20070127924A1
公开(公告)日：2007-06-07
申请号：US11607962
申请日：2006-12-04
申请人： Takehiro Tsuritani , Tomohiro Otani
发明人： Takehiro Tsuritani , Tomohiro Otani
IPC分类号： H04J14/02
CPC分类号： H04J14/0224 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical signal is transmitted via a WDM device 4 including a transponder 13, an all-optical node 1, and a wavelength multiplexing and demultiplexing optical filter 38. A route and wavelength selecting functional part 32 transmits a band varying request and a wavelength varying request to the transponder 13 based on a requested band of a wavelength path setting request, link information of a network, and band limitation information with respect to each filter wavelength of the wavelength multiplexing and demultiplexing optical filter 38. A multi-rate functional part 36 of the transponder 13 sets a band to be requested to the network side according to the band varying request. A wavelength varying functional part 35 sets a wavelength of the optical signal according to the wavelength varying request. The wavelength multiplexing and demultiplexing filter 38 includes a bit rate (band) dependent wavelength multiplexing and demultiplexing functional part 39.
摘要翻译： 光信号经由包括应答器13，全光节点1和波分复用和解复用光滤波器38的WDM设备4发送。 路由和波长选择功能部分32基于波长路径设置请求的所请求的频带，网络的链路信息和关于每个滤波器波长的频带限制信息，将频带变化请求和波长变化请求发送到应答器13 的波长复用和解复用光学滤波器38。 应答器13的多速率功能部分36根据频带变化请求将要请求的频带设置到网络侧。 波长变化功能部35根据波长变化请求设定光信号的波长。 波长复用和解复用滤波器38包括一个依赖于比特率（带）的波长复用和解复用功能部分39。
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公开(公告)号：US08254782B2
公开(公告)日：2012-08-28
申请号：US12273180
申请日：2008-11-18
CPC分类号： H04B10/07953
摘要： The present invention relates to the quality monitoring of optical signals, which have different symbol rates and generated by different modulation schemes, used for example in a wavelength division multiplexing network. The apparatus according to the invention includes an optical splitter for outputting the input optical signal to a first optical route and a second optical route, an optical coupler for coupling a optical signal from the first optical route with a optical signal from the second optical route, a delay unit provided on the first optical route, and a phase shift unit provided on the first optical route or the second optical route.
摘要翻译： 本发明涉及具有不同符号率并由不同调制方式生成的光信号的质量监测，例如在波分复用网络中使用。 根据本发明的装置包括：光分路器，用于将输入光信号输出到第一光路和第二光路;光耦合器，用于将来自第一光路的光信号与来自第二光路的光信号相耦合; 设置在第一光路上的延迟单元，以及设置在第一光路或第二光路上的相移单元。
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公开(公告)号：US07903969B2
公开(公告)日：2011-03-08
申请号：US11822908
申请日：2007-07-11
IPC分类号： H04B17/00
CPC分类号： H04J14/0227 , H04J14/0221 , H04Q11/0062 , H04Q2011/0083
摘要： A link connectivity verification message to recognize a physical link connection state is transmitted from the WDM to the PXC on a C-plane. The PXC transmits a link connectivity verification ACK message including information representing a physical link connection state, and the WDM transmits a cross-connect instruction message to cross-connect a transmission side and a reception side of a port (port 1) of the PXC. Probe light transmitted from the port (port a) of the WDM is turned back by a cross-connect of the port (port 1) of the PXC. The WDM receives the probe light to verify a link connectivity.
摘要翻译： 用于识别物理链路连接状态的链路连接验证消息在C-plane上从WDM发送到PXC。 PXC发送包括表示物理链路连接状态的信息的链路连接验证ACK消息，并且WDM发送交叉连接指令消息以交叉连接PXC的端口（端口1）的发送侧和接收侧。 通过PXC端口（端口1）的交叉连接，从WDM的端口（端口a）发送的探测光被转回。 WDM接收探测灯以验证链路连接。
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公开(公告)号：US07747167B2
公开(公告)日：2010-06-29
申请号：US11607962
申请日：2006-12-04
申请人： Takehiro Tsuritani , Tomohiro Otani
发明人： Takehiro Tsuritani , Tomohiro Otani
IPC分类号： H04J14/00
CPC分类号： H04J14/0224 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical signal is transmitted via a transponder 13, an all-optical node 1, and a WDM device 4 including an optical filter 38. A control means which includes a route and wavelength selecting functional part 32, transmits a request band information and a wavelength information based on a requested band information, link information of a network, and band limitation information with respect to each filter wavelength of the optical filter 38. A multi-rate functional part 36 sends a bit rate varying request to set a band to be requested to the network side according to the requested band information. A wavelength varying functional part 37 sends a wavelength varying request to set a wavelength of the optical signal according to the wavelength information. The optical filter 38 includes a bit rate (band) dependent wavelength multiplexing and demultiplexing functional part 39.
摘要翻译： 经由应答器13，全光节点1和包括滤光器38的WDM设备4发送光信号。包括路由和波长选择功能部分32的控制装置，发送请求频带信息和波长 基于所请求的频带信息，网络的链接信息和关于光学滤波器38的每个滤波器波长的频带限制信息的信息。多速率功能部分36发送比特率变化请求以设置要请求的频带 根据所请求的频带信息到网络侧。 波长变化功能部37发送波长变化请求，根据波长信息设定光信号的波长。 光滤波器38包括一个依赖于比特率（带）的波长复用和解复用功能部分39。
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公开(公告)号：US20080013949A1
公开(公告)日：2008-01-17
申请号：US11822908
申请日：2007-07-11
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J14/0221 , H04Q11/0062 , H04Q2011/0083
摘要： A link connectivity verification message to recognize a physical link connection state is transmitted from the WDM to the PXC on a C-plane. The PXC transmits a link connectivity verification ACK message including information representing a physical link connection state, and the WDM transmits a cross-connect instruction message to cross-connect a transmission side and a reception side of a port (port 1) of the PXC. Probe light transmitted from the port (port a) of the WDM is turned back by a cross-connect of the port (port 1) of the PXC. The WDM receives the probe light to verify a link connectivity.
摘要翻译： 用于识别物理链路连接状态的链路连接验证消息在C-plane上从WDM发送到PXC。 PXC发送包括表示物理链路连接状态的信息的链路连接验证ACK消息，并且WDM发送交叉连接指令消息以交叉连接PXC的端口（端口1）的发送侧和接收侧。 通过PXC端口（端口1）的交叉连接，从WDM的端口（端口a）发送的探测光被转回。 WDM接收探测灯以验证链路连接。
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