搜索结果: 1-3 共查到“光学工程 Coherent Transmission Systems”相关记录3条 . 查询时间(0.178 秒)
A Novel Dispersion and PMD Tolerant Clock Phase Detector for Coherent Transmission Systems
Novel Dispersion PMD Tolerant Clock Phase Detector Coherent Transmission Systems
2011/5/20
A novel clock phase detector is presented and shown to be tolerant to chromatic dispersion and PMD. The phase detector can be used in a clock recovery circuit for demodulation of 100 Gb/s coherent tra...
Comparison of RZ and NRZ Formats in 112-Gb/s PDM- QPSK Long Haul Coherent Transmission Systems
Coherent Transmission Systems PDM- QPSK RZ\NRZ Formats
2011/5/15
We show that 112-Gb/s PDM-QPSK coherent transmission systems with RZ pulse shape have better tolerance to ROADM filtering than NRZ, and time-interleaved RZ-PDM-QPSK outperform NRZ-PDM-QPSK in nonlinea...
Coherent optical communications were studied extensively in the 1980s; however, their R&D activities have been interrupted for almost 20 years behind the rapid progress in high-capacity WDM systems us...