Optical amplification apparatus

Details Optical amplification apparatus Optical amplification apparatus

H - Electricity

01

S

H01S 3/07 (2006.01) H04B 10/08 (2006.01) H04B 10/17 (2006.01)

Patent

CA 2069567

There is provided an optical amplifying apparatus comprising an optical isolator and applicable for various measurement and monitoring of optical transmission systems involving bidirectional telecommunication and retrogres- sive light. Such an optical amplifying apparatus specifi- cally comprises an optical transmission line 3 for convey- ing signal light p1, an optical amplifier 1 connected to an optical transmission line 2 for amplifying signal light p1 and an optical isolator 2 connected to the optical transmission line 3 for suppressing oscillation of the optical amplifier 1 caused by reflected signal light p1, to which optical devices 4, 5 connected to the optical transmission line 3 for isolating and combining signal light p1 and retrogressive light p2 are added. As signal light and retrogressive light can be independently isolat- ed and combined together in an optical amplifying appara- tus according to the invention, it can be used for bidi- rectional telecommunication, measurement and monitoring of various optical transmission systems utilizing retrogres- sive light and other applications.

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