Alignment monitoring of the pulse carver and data modulator for RZ-DPSK systems
Photonics Technology Letters, IEEE（2003）
摘要
A novel technique for monitoring the alignment status between the pulse carver and data modulator for return-to-zero differential phase-shift keying systems is proposed and demonstrated. The proposed technique utilizes a polarization-maintaining fiber, polarizer, and power meter. Both the simulation and measurement results show that the proposed technique can monitor the bit-error-rate degradation caused by timing misalignment between the pulse carver and data modulator.
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关键词
differential phase shift keying,optical polarisers,RZ-DPSK transmitter,intensity modulator,bit-error-rate degradation,return-to-zero differential phase-shift keying systems,data modulator,power meter,optical fibre communication,polarizer,optical fibre polarisation,RZ-DPSK systems,polarization-maintaining fiber,alignment monitoring,electro-optical modulation,phase modulation,intensity modulation,pulse carver,optical transmitters,error statistics,phase modulator,timing misalignment
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