Title :
Measurement of crossphase modulation in coherent wavelength-division multiplexing using injection lasers
Author :
Chraplyvy, A.R. ; Stone, Joshua
Author_Institution :
AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA
Abstract :
Light from two InGaAsP injection lasers of different wavelengths was multiplexed into a 15 km-long single-mode fibre. Owing to the nonlinear refractive index, the phase of light in one channel was changed by power changes in the other channel. A 1 mW power charge in one channel produced a 1.4° phase shift in the other channel.
Keywords :
frequency division multiplexing; optical fibres; optical modulation; semiconductor junction lasers; InGaAsP; coherent wavelength-division multiplexing; crossphase modulation; injection lasers; nonlinear refractive index; power changes; single-mode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840678
