Mh. Chou et al., Efficient wide-band and tunable midspan spectral inverter using cascaded nonlinearities in LiNbO3 waveguides, IEEE PHOTON, 12(1), 2000, pp. 82-84
We report on efficient (-7-dB fiber-to-fiber), wide-band (over 70 nm), tuna
ble, and excess-noise-free mid-span spectral inverters based on cascaded se
cond-order nonlinearities in periodically poled LiNbO3 waveguides, We demon
strate their performance in a 4 x 10 Gb/s transmission over 150 km of stand
ard single-mode fiber.