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The power transfer function of a nonlinear optical loop mirror (NOLM) is experimentally investigated for both continuous-wave and pulsed operation of the pump signal. The difference between transmission and reflection responses is discussed in view of using the interferometer for the amplitude regeneration of multilevel signals.
We demonstrate effective four-wave mixing in a 2- microfiber attached onto a graphene film by using two continuous-wave pump lasers at wavelengths near 1550 nm. With a contact length of 10 mm between the microfiber and the graphene film and input powers of 600 and 100 mW for the two pumps, we achieve a conversion efficiency that varies from to as the wavelength...
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