公开(公告)号：US06445850B1

公开(公告)日：2002-09-03

申请号：US09829412

申请日：2001-04-09

申请人： Jianying Zhou ,  Richard A. Barry ,  Murat Azizoglu ,  Derek Spock ,  John Z. Jiang

发明人： Jianying Zhou ,  Richard A. Barry ,  Murat Azizoglu ,  Derek Spock ,  John Z. Jiang

IPC分类号： G02B628

CPC分类号： H04J14/02 ,  H04J14/0213

摘要： A high speed DWDM optical transmission system that reduces a fiber dispersion limit without reducing the total channel count of a multi-wavelength optical signal. The system achieves such reduction in the fiber dispersion limit by employing a multi-wavelength optical signal comprising a gap-free band structure, and performing per-band dispersion compensation on the optical signal by adjusting residual dispersion values associated with one or more of the bands. In one embodiment, the system includes a first dispersion compensation module (DCM) that provides a dispersion-compensated multi-wavelength optical signal containing wavelength-dependent residual dispersion to a band splitter. The band splitter separates the dispersion-compensated optical signal into a plurality of bands such that no band gaps are formed between adjacent bands, and provides each band to a respective second DCM configured to reduce the residual dispersion associated with that band to a predetermined range of residual dispersion values.

公开(公告)号：US06388805B1

公开(公告)日：2002-05-14

申请号：US09820266

申请日：2001-03-28

申请人： Derek Spock ,  Murat Azizoglu ,  Jonathan C. Bloch

发明人： Derek Spock ,  Murat Azizoglu ,  Jonathan C. Bloch

IPC分类号： H01S300

CPC分类号： H04B10/2971 ,  H01S3/06754 ,  H01S3/06783 ,  H01S3/06787

摘要： An optical amplifier for a 4-fiber system having two inputs and outputs is provided that makes use of a single amplifier rather than two separate amplifiers. The optical amplifier node makes use of an interleaver before and after the single amplifier to demultiplex and multiplex even and odd channel signals traveling in opposite directions. The optical amplifier node can be combined with other like amplifier nodes to provide more complex amplifier solutions at reduced costs due to the need for only half of the typical number of amplifiers. The optical amplifier node can also be combined with, e.g., variable optical attenuators, L/C filters, channel add/drop, and dispersion compensation modules to modify the optical signals as desired.

摘要翻译： 提供了具有两个输入和输出的用于4光纤系统的光放大器，其利用单个放大器而不是两个单独的放大器。 光放大器节点利用单放大器之前和之后的交织器来解复用和复用沿相反方向行进的偶信道信号和奇信道信号。 由于仅需要典型数量的放大器的一半，光放大器节点可以与其他类似的放大器节点组合以便以更低的成本提供更复杂的放大器解决方案。 光放大器节点还可以与例如可变光衰减器，L / C滤波器，信道分插和色散补偿模块组合以根据需要修改光信号。

公开(公告)号：US06496305B2

公开(公告)日：2002-12-17

申请号：US09911926

申请日：2001-07-23

申请人： Derek Spock ,  Murat Azizoglu ,  Jonathan C. Bloch ,  Farzana I. Khatri ,  Vijayanand Vusirikala ,  Eric Arthur Swanson

发明人： Derek Spock ,  Murat Azizoglu ,  Jonathan C. Bloch ,  Farzana I. Khatri ,  Vijayanand Vusirikala ,  Eric Arthur Swanson

IPC分类号： H01S300

CPC分类号： H01S3/06754 ,  H01S3/06783 ,  H01S3/06787 ,  H04B10/2971

摘要： An optical amplifier for a 4-fiber system having two inputs and outputs is provided that makes use of a single amplifier rather than two separate amplifiers. The optical amplifier node makes use of an interleaver before and after the single amplifier to demultiplex and multiplex even and odd channel signals traveling in opposite directions. The arrangement can also amplify wide channel spaced signals traveling through a plurality of optical fibers. The optical amplifier node can be combined with other like amplifier nodes to provide more complex amplifier solutions at reduced costs due to the need for only half of the typical number of amplifiers. The optical amplifier node can also be combined with, e.g., variable optical attenuators, L/C/S filters, channel add/drop, co- and counter-propagating Raman amplification, and dispersion compensation modules to modify the optical signals as desired.

摘要翻译： 提供了具有两个输入和输出的用于4光纤系统的光放大器，其利用单个放大器而不是两个单独的放大器。 光放大器节点利用单放大器之前和之后的交织器来解复用和复用沿相反方向行进的偶信道信号和奇信道信号。 该布置还可以放大穿过多根光纤的宽信道间隔信号。 由于仅需要典型数量的放大器的一半，光放大器节点可以与其他类似的放大器节点组合以便以更低的成本提供更复杂的放大器解决方案。 光放大器节点还可以与例如可变光衰减器，L / C / S滤波器，信道加/减，共反相传播拉曼放大和色散补偿模块组合，以根据需要修改光信号。