Title :
Electrooptic phase modulation of stretched 250-fs pulses for suppression of third-order fiber dispersion in transmission
Author :
Pelusi, Mark D. ; Matsui, Yasuhiro ; Suzuki, Akira
Author_Institution :
Femtosecond Technol. Res. Assoc., Tsukuba, Japan
Abstract :
Optical pulse distortion due to third-order dispersion (TOD) in linear fiber transmission of 250-fs pulses at 5 GHz over 600 m is reduced by applying electrooptic phase modulation (EOPM) from a LiNbO/sub 3/ device. Initial propagation in dispersion-compensating fiber cancels the second-order dispersion of the fiber-link and also linearly chirps the pulses to a stretched width of 47 ps, which enables TOD compensation by the following 5-GHz EOPM. Good agreement between experimental and analytical results is shown. Comparable transmission improvement for the 250-fs pulses is achieved up to a maximum repetition rate of 6 GHz, limited by the RF amplifier bandwidth.
Keywords :
electro-optical modulation; integrated optics; optical fibre communication; optical fibre dispersion; optical pulse shaping; phase modulation; 250 fs; 47 ps; LiNbO/sub 3/; LiNbO/sub 3/ device; RF amplifier bandwidth; TOD compensation; dispersion-compensating fiber; electrooptic phase modulation; fiber-link; fs pulses; linear fiber transmission; linearly chirps; maximum repetition rate; second-order dispersion; stretched fs pulses; stretched width; third-order fiber dispersion suppression; transmission improvement; Chirp; Electrooptic devices; Optical distortion; Optical fiber devices; Optical propagation; Optical pulses; Phase distortion; Phase modulation; Pulse amplifiers; Pulse modulation;
Journal_Title :
Photonics Technology Letters, IEEE
