Title :
Widely tunable (45 nm, 5.6 THz) multi-quantum-well three-branch Y3-lasers for WDM networks
Author :
Kuznetsov, M. ; Verlangieri, P. ; Dentai, A.G. ; Joyner, C.H. ; Burrus, C.A.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
Abstract :
A widely tunable semiconductor laser structure, the three-branch Y3-laser, is demonstrated. Using a multiple-quantum-well (MQW) active region, the lasers show a tuning range of 45 nm (5.6 THz) and a sidemode suppression of 25 dB, with potential access to 120 frequency channels. The laser spectral characteristics agree well with the design. Such lasers appear promising for multichannel wavelength-division-multiplexed (WDM) optical networks.<>
Keywords :
laser modes; laser tuning; optical communication equipment; semiconductor lasers; wavelength division multiplexing; 25 dB; 45 nm; 5.6 THz; frequency channels; multi-quantum-well lasers; multichannel wavelength-division-multiplexed optical networks; sidemode suppression; spectral characteristics; three-branch Y3-lasers; tunable semiconductor laser structure; Frequency; Laser tuning; Optical design; Optical fiber networks; Optical tuning; Quantum well devices; Semiconductor lasers; Tunable circuits and devices; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
