Title :
Impact of extinction ratio and switching efficiency of nonlinear optical loop mirror demultiplexer on error rate performance
Author_Institution :
AG Res. Center, Alcatel SEL, Stuttgart, Germany
Abstract :
A theory is evaluated that allows the calculation of the worst-case input power penalty of an optical demultiplexer using a nonlinear optical loop mirror (NOLM) as high-speed switch. Due to finite NOLM extinction ratio and switching efficiency reduction there exists a strong dependence of the penalty on the bitrate of the drop channel, which is investigated for different 100 Gbit/s demultiplexer configurations. Assuming a NOLM of 2 km loop fiber, a 20-dB extinction ratio, and a switching pulse EDFA of 14.5 dBm, demultiplexing with a penalty of less than 7 dB should be possible for drop rates between 2.5 GHz and 11.1 GHz.<>
Keywords :
demultiplexing equipment; fibre lasers; mirrors; optical fibre communication; optical resonators; 100 Gbit/s; 2 km; 2.5 to 11.1 GHz; drop channel; error rate performance; extinction ratio; finite NOLM extinction ratio; high-speed switch; nonlinear optical loop mirror; nonlinear optical loop mirror demultiplexer; optical demultiplexer; switching efficiency; switching efficiency reduction; switching pulse EDFA; worst-case input power penalty; Erbium; Erbium-doped fiber amplifier; Extinction ratio; Fiber nonlinear optics; High speed optical techniques; Mirrors; Nonlinear optics; Optical filters; Optical pulses; Optical receivers;
Journal_Title :
Photonics Technology Letters, IEEE
