Continuous-wave fiber optical parametric amplifier with 60-dB gain using a novel two-segment design

Abstract

An isolator between two fiber segments was used to obtain a continuous-wave fiber optical parametric amplifier (OPA) with 60-dB internal gain. The isolator was placed between two fiber segments to increase the pump stimulated Brillouin scattering threshold. Subdecibel penalties were measured for transmission of 10-Gb/s signals with 35 dB of gain. The bit error rate of the amplified signal was measured in order to quantify the power penalty due to OPA.