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    • 4. 发明授权
    • Chromatic dispersion measurement and compensation
    • 色散测量和补偿
    • US07064814B2
    • 2006-06-20
    • US10509913
    • 2003-04-10
    • Mark Raymond ZaacksUri Mahlab
    • Mark Raymond ZaacksUri Mahlab
    • G01N21/00
    • G01M11/333G01M11/335G01M11/338G02B6/29394H04B10/25133
    • The invention proposes a technique for measuring chromatic dispersion in an optical communication line transmitting an optical signal at a predetermined optical wavelength. The technique comprises determining the sign of chromatic dispersion and includes introducing controlled changes of wavelength around the predetermined wavelength, monitoring the optical signal that has passed said line, and obtaining a first and a second signals, wherein the first signal reflects changes of the carrier wavelength, and the second signal reflects changes of delay of the optical signal transmitted via the line. The two signals are compared and the chromatic dispersion sign is determined based on the phase difference there-between.
    • 本发明提出了一种用于测量以预定光波长传输光信号的光通信线中的色散的技术。 该技术包括确定色散的符号,并且包括引入围绕预定波长的波长的受控变化,监测已经通过所述线的光信号,以及获得第一和第二信号,其中第一信号反映载波波长的变化 并且第二信号反映经由线路发送的光信号的延迟的变化。 比较两个信号,并根据其间的相位差来确定色散符号。
    • 8. 发明授权
    • Technique for securing transmission of data along an optical communication line
    • 用于确保沿光通信线路传输数据的技术
    • US08218966B2
    • 2012-07-10
    • US12667862
    • 2008-06-29
    • Michael GutinUri Mahlab
    • Michael GutinUri Mahlab
    • H04B10/00
    • H04B10/85H04B10/2503
    • A technique for securing data transmission via an optical communication line comprising an optical fiber extending between a first network element and a second network element; the technique comprises conveying a first optical signal carrying data via the optical fiber from the first network element towards the second network element at a predetermined optical wavelength, and conveying a second optical signal at the same predetermined optical wavelength via the same fiber in the opposite direction to create within the optical fiber a combined optical signal such that combination of the first and second optical signals is adapted to hamper an unauthorized non-intrusive extraction of the first optical signal from the combined optical signal.
    • 一种用于通过光通信线路保护数据传输的技术,包括在第一网络元件和第二网络元件之间延伸的光纤; 该技术包括以预定的光学波长将经由光纤传送数据的第一光信号从第一网络元件传送到第二网络元件,并且以相反的方向通过相同的光纤传送相同的预定光波长的第二光信号 在光纤内创建组合的光信号,使得第一和第二光信号的组合适于妨碍来自组合的光信号的未经授权的非侵入式提取第一光信号。
    • 9. 发明申请
    • TECHNIQUE FOR SECURING TRANSMISSION OF DATA ALONG AN OPTICAL COMMUNICATION LINE
    • 用于保护光通信线路传输数据的技术
    • US20100196015A1
    • 2010-08-05
    • US12667862
    • 2008-06-29
    • Michael GutinUri Mahlab
    • Michael GutinUri Mahlab
    • H04B10/12
    • H04B10/85H04B10/2503
    • A technique for securing data transmission via an optical communication line comprising an optical fiber extending between a first network element and a second network element; the technique comprises conveying a first optical signal carrying data via the optical fiber from the first network element towards the second network element at a predetermined optical wavelength, and conveying a second optical signal at the same predetermined optical wavelength via the same fiber in the opposite direction to create within the optical fiber a combined optical signal such that combination of the first and second optical signals is adapted to hamper an unauthorized non-intrusive extraction of the first optical signal from the combined optical signal.
    • 一种用于通过光通信线路保护数据传输的技术,包括在第一网络元件和第二网络元件之间延伸的光纤; 该技术包括以预定的光学波长将经由光纤传送数据的第一光信号从第一网络元件传送到第二网络元件,并且以相反的方向通过相同的光纤传送相同的预定光波长的第二光信号 在光纤内创建组合的光信号,使得第一和第二光信号的组合适于妨碍来自组合的光信号的未经授权的非侵入式提取第一光信号。