Dual Polarization Interferometric In-Band OSNR Measurement

作者：Flood Edward^*; Guo Wei Hua; Smyth John Frank; Lynch Michael; Bradley Ann Louise; Barry Liam P; Donegan John F

来源：IEEE Photonics Technology Letters, 2012, 24(11): 873-875.

DOI：10.1109/LPT.2012.2189761

• Differential phase-shift keying
• monitoring
• optical fiber communication
• optical fiber devices
• optical fiber networks
• optical interferometry

An in-band optical signal-to-noise ratio (OSNR) monitoring technique based on a Michelson fiber interferometer and a linear polarizer is presented in this letter. OSNR values of up to 25 +/- 0.5 dB were measured for 10-G nonreturn-to-zero-differential phase-OOK (NRZ-OOK) and NRZ-differential phase-shift keyed (NRZ-DPSK) signals without prior knowledge of the signal coherence properties. Measurements were also carried out with signals having 680 ps/nm of chromatic dispersion.

• 出版日期2012-6-1