Title :
Spectrally flattened phase-locked multi-carrier light generator with phase modulators and chirped fibre Bragg grating
Author :
Yamamoto, T. ; Komukai, T. ; Suzuki, K. ; Takada, A.
Author_Institution :
NTT Corp., Tsukuba
Abstract :
Described is a phase-locked multi-carrier light generator with a flattened spectral envelope that contains two phase modulators and a dispersion medium. By adopting a chirped fibre Bragg grating as a dispersion medium instead of a long normal dispersion fibre, the stability of the optical output spectrum can be increased and the size of the multi-carrier light generator reduced. A prototype has been built with this configuration, that generates a 61 carrier light with a power deviation of less than 8 dB.
Keywords :
Bragg gratings; modulators; optical fibre dispersion; optical modulation; phase modulation; chirped fibre Bragg grating; flattened spectral envelope; normal dispersion fibre; optical output spectrum; phase modulators; phase-locked multi-carrier light generator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20071505