A novel symmetric 10 Gbit/s architecture with a single feeder fiber for WDM-PON based on chirp-managed laser

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2012,（6）
• 页码范围: 468-472
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11801-012-2299-1

摘要

We propose the single feeder fiber architecture for wavelength division multiplexing passive optical network (WDM-PON) based on directly modulated chirp managed laser (CML).The downilink (DL) signal output from the laser is converted to return-to-zero (RZ) differential phase shift signal using a pulse carver.The downstream signal is reused as a carrier for the upstream using intensity modulation technique.Simulation results show the error-free performance at symmetric data rate of 10 Gbit/s per channel with negligible power penalty and improved receiver sensitivity for the uplink (UL),over 25 km standard single-mode fiber (SSMF).A low-cost and reduced circuitry network design is implemented on a single feeder fiber with the elimination of differential encoder and one external modulator.