Title :
Two-section gain-levered tunable distributed feedback laser with active tuning section
Author :
Griffel, Giora ; Lang, Robert J. ; Yariv, Amnon
Author_Institution :
Center for Adv. Technol. in Telecommun., Polytechnic Univ., Brooklyn, NY, USA
fDate :
1/1/1994 12:00:00 AM
Abstract :
A composite cavity semiconductor laser structure that consists of two active (gain) sections is analyzed. One of the sections has a grating corrugation, while the other is flat. The operation of the device is enhanced by utilizing the gain-lever effect. A round-trip analysis is combined with the rate equations pertinent for this structure to study the characteristics of the device. The performance of the device is compared to that of a similar case without the gain lever. It is shown that, utilizing the gain-lever effect, improved operation in terms of tuning range, modulation efficiency, and output power control can be obtained
Keywords :
diffraction gratings; distributed feedback lasers; laser cavity resonators; laser theory; laser tuning; optical modulation; semiconductor lasers; active tuning section; composite cavity semiconductor laser structure; flat section; gain-lever effect; grating corrugation; modulation efficiency; output power control; performance; rate equations; round-trip analysis; tuning range; two active gain sections; two-section gain-levered tunable distributed feedback laser; Diode lasers; Distributed feedback devices; Equations; Gratings; Laser feedback; Laser tuning; Optical tuning; Power generation; Semiconductor lasers; Tunable circuits and devices;
Journal_Title :
Quantum Electronics, IEEE Journal of
