公开(公告)号：CA2400054A1

公开(公告)日：2001-08-23

申请号：CA2400054

申请日：2001-02-16

Applicant: CORNING INC

Inventor： MURPHY EDWARD F ,  BHATIA VIKRAM ,  HALLOCK ROBERT ,  HARRIS JAMES M ,  SPOCK DEREK E

IPC: H04B10/60 ,  H04B10/071 ,  H04B10/25 ,  H04B10/291 ,  H04B10/40 ,  H04B10/50 ,  H04J14/00 ,  H04J14/02

Abstract: Methods and apparatus for combining, adding, and/or dropping channels in optical communication systems that utilize thin film filters without the creation of deadbands, using fiber Bragg gratings (316,322) and additional thin film optical filters, are described. According to one aspect of the invention, an optical filter (318) is used to drop a wavelength (328) range from an optical signal (312). Prior to the optical signal entering the optic al filter, one or more fiber Bragg gratings and an optical circulator (310, 324 ) are used reflects a portion of the communications spectrum which would normally lie with the deadband region of the optical filter. According to another aspect of the present invention, an optical filter (320) is used to combine a first optical signal and a second optical signal to form a combine d optical signal. Neither the first optical signal nor the second optical sign al includes channels within a deadband region of the optical filter. One or mor e fiber Bragg gratings and an optical circulator or a coupler are used to add a third optical signal to the combined optical signal. The third optical signa l includes signal wavelengths within the deadband region of the optical filter .

公开(公告)号：WO0161871A3

公开(公告)日：2002-04-04

申请号：PCT/US0105163

申请日：2001-02-16

Applicant: CORNING INC

Inventor： BHATIA VIKRAM ,  HALLOCK ROBERT ,  HARRIS JAMES M ,  MURPHY EDWARD F ,  SPOCK DEREK E

IPC: H04B10/02 ,  H04J14/00 ,  H04J14/02

CPC classification number: H04J14/0213 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0216 ,  H04J14/0221

Abstract: Methods and apparatus for combining, adding, and/or dropping channels in optical communication systems that utilize thin film filters without the creation of deadbands, using fiber Bragg gratings (316,322) and additional thin film optical filters, are described. According to one aspect of the invention, an optical filter (318) is used to drop a wavelength (328) range from an optical signal (312). Prior to the optical signal entering the optical filter, one or more fiber Bragg gratings and an optical circulator (310, 324) are used reflects a portion of the communications spectrum which would normally lie with the deadband region of the optical filter. According to another aspect of the present invention, an optical filter (320) is used to combine a first optical signal and a second optical signal to form a combined optical signal. Neither the first optical signal nor the second optical signal includes channels within a deadband region of the optical filter. One or more fiber Bragg gratings and an optical circulator or a coupler are used to add a third optical signal to the combined optical signal. The third optical signal includes signal wavelengths within the deadband region of the optical filter.

Abstract translation: 描述了使用光纤布拉格光栅（316,322）和附加的薄膜光学滤波器来组合，添加和/或丢弃利用薄膜滤波器而不产生死区的光通信系统中的信道的方法和装置。 根据本发明的一个方面，光滤波器（318）用于从光信号（312）中降低波长（328）范围。 在光信号进入光滤波器之前，使用一个或多个光纤布拉格光栅和光环行器（310,324）来反映通常与光滤波器的死区区域正常相关的通信频谱的一部分。 根据本发明的另一方面，光滤波器（320）用于组合第一光信号和第二光信号以形成组合光信号。 第一光信号和第二光信号都不包括在滤光器的死区内的通道。 使用一个或多个光纤布拉格光栅和光环行器或耦合器将第三光信号加到组合光信号上。 第三光信号包括在滤光器的死区内的信号波长。

公开(公告)号：AU6290801A

公开(公告)日：2001-08-27

申请号：AU6290801

申请日：2001-02-16

Applicant: CORNING INC

Inventor： BHATIA VIKRAM ,  HALLOCK ROBERT ,  HARRIS JAMES M ,  MURPHY EDWARD F ,  SPOCK DEREK E

IPC: H04B10/60 ,  H04B10/071 ,  H04B10/25 ,  H04B10/291 ,  H04B10/40 ,  H04B10/50 ,  H04J14/00 ,  H04J14/02

Abstract: Methods and apparatus for combining, adding, and/or dropping channels in optical communication systems that utilize thin film filters without the creation of deadbands, using fiber Bragg gratings and additional thin film optical filters, are described. According to one aspect of the invention, an optical filter is used to drop a wavelength range from an optical signal. Prior to the optical signal entering the optical filter, one or more fiber Bragg gratings and an optical circulator are used reflects a portion of the communications spectrum which would normally lie with the deadband region of the optical filter. According to another aspect of the present invention, an optical filter is used to combine a first optical signal and a second optical signal to form a combined optical signal. Neither the first optical signal nor the second optical signal includes channels within a deadband region of the optical filter. One or more fiber Bragg gratings and an optical circulator or a coupler are used to add a third optical signal to the combined optical signal. The third optical signal includes signal wavelengths within the deadband region of the optical filter.