Invention Grant
US09124362B2 Optical amplification stage for OTDR monitoring and related method and system for OTDR monitoring of an optical communication link
有权
用于OTDR监控的光放大级，以及光通信链路OTDR监控的相关方法和系统
- Patent Title: Optical amplification stage for OTDR monitoring and related method and system for OTDR monitoring of an optical communication link
- Patent Title (中): 用于OTDR监控的光放大级，以及光通信链路OTDR监控的相关方法和系统
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Application No.: US14049866Application Date: 2013-10-09
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Publication No.: US09124362B2Publication Date: 2015-09-01
- Inventor: Giorgio Grasso , Andrea Melloni , Aldo Righetti , Fausto Meli
- Applicant: PADTEC S.A.
- Applicant Address: BR Campinas
- Assignee: PADTEC S.A.
- Current Assignee: PADTEC S.A.
- Current Assignee Address: BR Campinas
- Agency: Pearne & Gordon LLP
- Priority: EP12188260 20121012
- Main IPC: H04B10/071
- IPC: H04B10/071 ; H04B10/291
Abstract:
Optical amplification stage (1) for OTDR monitoring, comprising a first (2a) and a second optical signal path (2b), a first (3a) and a second optical amplifier (3b), a first optical coupler (4a) placed along the first optical signal path downstream the first optical amplifier, a second optical coupler (4b) placed along the second optical signal path downstream the second optical amplifier, an optical by-pass path (5) optically connecting the first and the second optical coupler, a first (11a) and a second optical reflector (11b) optically connected to respectively the first and second optical coupler, and an optical filter (10) placed along the optical by-pass path which has attenuation high on the whole WDM band and low at the OTDR wavelength(s).
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