公开(公告)号：US06744553B1

公开(公告)日：2004-06-01

申请号：US09885678

申请日：2001-06-20

申请人： Mohammed N. Islam ,  Ozdal Boyraz ,  Carl A. Dewilde

发明人： Mohammed N. Islam ,  Ozdal Boyraz ,  Carl A. Dewilde

IPC分类号： G02F135

CPC分类号： G02F1/39 ,  G02F1/3536

摘要： In one aspect of the invention, an apparatus operable to convert wavelengths of a plurality of optical signals includes a coupler operable to receive a pump signal and a plurality of input signals each input signal comprising at least one wavelength different than the wavelengths of others of the plurality of input optical signals. The apparatus further includes an optical medium operable to receive the pump signal and the plurality of input signals from the couplet, wherein the pump signal and each of the plurality of input signals are synchronized to overlap at least partially during at least a part of the time spent traversing the optical medium to facilitate generation of a plurality of converted wavelength signals each comprising a wavelength that is different than the wavelengths of at least some of the plurality of input signals. Various embodiments can result in low cross-talk and/or low polarization sensitivity.

摘要翻译： 在本发明的一个方面，可操作以转换多个光信号的波长的装置包括可操作以接收泵浦信号和多个输入信号的耦合器，每个输入信号包括至少一个波长不同于 多个输入光信号。 所述装置还包括光学介质，其可操作以从所述对联接收所述泵浦信号和所述多个输入信号，其中所述泵浦信号和所述多个输入信号中的每一个被同步至少部分地在所述时间的至少一部分期间重叠 经过光学介质以便于产生多个转换的波长信号，每个波长信号包括不同于多个输入信号中的至少一些的波长的波长。 各种实施例可导致低串扰和/或低偏振灵敏度。

公开(公告)号：US06532101B2

公开(公告)日：2003-03-11

申请号：US09811103

申请日：2001-03-16

申请人： Mohammed N. Islam ,  Carl A. Dewilde ,  Michael J. Freeman

发明人： Mohammed N. Islam ,  Carl A. Dewilde ,  Michael J. Freeman

IPC分类号： H01S300

CPC分类号： H04B10/2935 ,  H04B10/2916 ,  H04B2210/003

摘要： A multi-stage Raman amplifier includes a first Raman amplifier stage having a first sloped gain profile operable to amplify a plurality of signal wavelengths, and a second Raman amplifier stage having a second sloped gain profile operable to amplify at least most of the plurality of signal wavelengths after those wavelengths have been amplified by the first stage. The second sloped gain profile is approximately complementary slope to the slope of the first sloped gain profile. The combined effect of the first and second Raman stages contributes to an approximately flat overall gain profile over the plurality of signal wavelengths.

公开(公告)号：US06646788B2

公开(公告)日：2003-11-11

申请号：US10289198

申请日：2002-11-05

申请人： Mohammed N. Islam ,  Carl A. Dewilde

发明人： Mohammed N. Islam ,  Carl A. Dewilde

IPC分类号： H01S330

CPC分类号： H04B10/2935 ,  H04B10/2916 ,  H04B2210/003

摘要： A multi-stage Raman amplifier includes a first Raman amplifier stage having a first sloped gain profile operable to amplify a plurality of signal wavelengths, and a second Raman amplifier stage having a second sloped gain profile operable to amplify at least most of the plurality of signal wavelengths after those wavelengths have been amplified by the first stage. The second sloped gain profile is approximately complementary slope to the slope of the first sloped gain profile. The combined effect of the first and second Raman stages contributes to an approximately flat overall gain profile over the plurality of signal wavelengths.

摘要翻译： 多级拉曼放大器包括具有可操作以放大多个信号波长的第一倾斜增益分布的第一拉曼放大器级和具有第二倾斜增益分布的第二拉曼放大器级，该第二拉曼放大器级可用于放大多个信号中的至少大部分 这些波长的波长在第一阶段被放大。 第二倾斜增益曲线是与第一倾斜增益分布的斜率近似互补的斜率。 第一和第二拉曼级的组合效应有助于在多个信号波长上的大致平坦的总增益分布。