Ps. Cho et al., RZ WAVELENGTH CONVERSION WITH REDUCED POWER PENALTY USING A SEMICONDUCTOR-OPTICAL-AMPLIFIER FIBER-GRATING HYBRID DEVICE/, IEEE photonics technology letters, 10(1), 1998, pp. 66-68
We show that a fiber Bragg grating filter improves the bit-error-rate
(BER) performance of a semiconductor-optical-amplifier for return-to-z
ero (RZ) wavelength conversion, A 14-dB reduction in power penalty was
obtained at 10.6 Gb/s.