Flood E.;Guo W.;Smyth J.;Lynch M.;Bradley A.;Barry L.;Donegan J.

2012

May

IEEE Photonics Technology Letters

Dual polarization interferometric in-band OSNR measurement

Published

4 ()

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

24

11

873

875

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. © 2012 IEEE.

1041-1135

10.1109/LPT.2012.2189761