Mutual optical format conversion between on-off keying and binary phase-shift keying based on stimulated brillouin scattering

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（10）
• 页码范围: 11-13
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.100601

摘要

We propose and experimentally demonstrate mutual optical format conversion between signals characterized as 10-Gb/s nonreturn-to-zero on-off-keying (NRZ-OOK) and NRZ binary phase-shift keying (BPSK) types.The conversion is based on stimulated Brillouin scattering (SBS) in a single-mode optical fiber.An OOK signal is converted into a BPSK signal through optical carrier absorption,for which a SBS loss of 30 MHz is used in long-haul transmission.The converted BPSK signal is reverted to an OOK signal with a corresponding SBS gain of 30 MHz for direct detection.The proposed OOK-to-BPSK and BPSK-to-OOK format conversions can be implemented in transmitter and receiver nodes by using a laser source as the Brillouin pump.