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Registered APPARATUS FOR MEASURING PERFORMANCE OF COHERENT OPTICAL RECEIVER
- Inventors
- Youn Chun Ju, Kim Duk Jun, Kwon Yong-Hwan, Choe Joong-Seon, Eun Soo Nam, Jong-Hoi Kim
- Application No.
- 13687741 (2012.11.28)
- Publication No.
- 20130156424 (2013.06.20)
- Registration No.
- 8929731 (2015.01.06)
- Country
- UNITED STATES
- Project Code
- 10MB7400, Coherenr optical OFDM technologies for next generation optical transport networks, Eun Soo Nam
- Abstract
- An apparatus for measuring performance of a coherent optical receiver includes a beam splitter splitting light into first and second paths, a first optical modulator modulating the first path light, a variable optical attenuator controlling an optical power of the first optical modulator, a first polarization controller transmitting a signal controlling polarization of an output of the variable optical attenuator to the coherent optical receiver, a second optical modulator modulating the second path light, a variable optical delay line delaying time of an output of the second optical modulator, a second polarization controller transmitting a signal controlling polarization of an output of the variable optical delay line to the coherent optical receiver, a network analyzer measuring performance of the coherent optical receiver and controlling the optical modulators, and a controller transmitting a control signal to the optical modulators.
- KSP Keywords
- Coherent optical receiver, Control Signal, Optical attenuators, Optical delay, Optical power, Optical receiver, Polarization controller, Signal controlling, Variable optical delay line, beam splitter, delay line, network analyzer, optical delay line, optical modulator, variable optical attenuator(VOA)