Title :
Chirp control and broadband wavelength-tuning of 40-GHz monolithic actively mode-locked laser diode module with an external CW light injection
Author :
Arahira, Shin ; Yaegashi, Hiroki ; Nakamura, Koji ; Ogawa, Yoh
Author_Institution :
Adv. Devices Labs., Corp. R&D Center, Tokyo, Japan
Abstract :
Chirp control behaviors of a 40-GHz monolithic actively mode-locked laser diode (MLLD) with an external continuous wave (CW) light injection were experimentally investigated in detail. Large frequency chirping of the Fabry-Pe´rot-type MLLD was found to be reduced by the CW light input with sufficient power. Broad-band wavelength tuning over 60 nm was also successfully achieved using the external CW light as a wavelength-selection element. Optical short pulses shorter than 4 ps were generated leaving small frequency chirping, low timing jitters less of than 0.2 ps, and low relative intensity noise values of less than -130 dB/Hz over the whole tuning range from 1530 to 1592 nm, almost covering both the C and the L bands in the wavelength region of optical communication systems.
Keywords :
chirp modulation; laser mode locking; laser noise; laser tuning; modules; optical communication equipment; optical pulse generation; semiconductor device noise; semiconductor lasers; timing jitter; 1530 to 1592 nm; 40 GHz; active mode locking; external CW light injection; frequency chirp control; laser diode module; optical pulse generation; relative intensity noise; timing jitter; wavelength tuning; Chirp; Diode lasers; Frequency; Laser tuning; Lighting control; Optical control; Optical noise; Optical pulse generation; Optical tuning; Timing jitter; Injection locking; mode-locked laser diode (MLLD); optical communications; wavelength tuning;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2005.853790
