Receiver sensitivity improvement for NRZ-OOK signal by optical parametric amplifier-assisted detection

摘要

By using a fiber optical parametric amplifier, we demonstrate a novel pre-amplification scheme to improve receiver sensitivity for 10-Gb/s non-return-to-zero on-off keying (NRZ-OOK) format with dual-end superposition of signal and idler. We achieve receiver sensitivity of -40.5 dBm, and improve by 2 dB when comparing to its single-end counterpart. ©2009 Optical Society of America.