Title :
Widely Tunable Twin-Guide Laser Diodes With Sampled Gratings: Design and Performance
Author :
Todt, René ; Jacke, Thomas ; Meyer, Ralf ; Laroy, Reinhard ; Morthier, Geert ; Amann, Markus-Christian
Author_Institution :
NEC Corp., Ibaraki
Abstract :
The widely tunable twin-guide laser diode with sampled gratings is a monolithically integrated device that utilizes a vertical integration scheme to realize an electronically and widely tunable distributed feedback (DFB)-type laser. Owing to its DFB- type structure, it possesses many advantages, such as large continuous tuning ranges, simple wavelength tuning scheme, and promising dynamic characteristics. In this paper, we detail on the design of the sampled grating tunable twin-guide laser and discuss its performance. Recent devices achieve tuning ranges over 40 nm along with high side-mode suppression (ges35 dB) as well as large output power (ges10 mW).
Keywords :
diffraction gratings; distributed feedback lasers; laser beams; laser feedback; laser tuning; semiconductor lasers; distributed feedback laser; monolithically integrated device; sampled gratings; side mode suppression; twin guide laser diodes; vertical integration; wavelength tuning; widely tunable laser diodes; Diode lasers; Distributed feedback devices; Gratings; Laser feedback; Laser tuning; Optical design; Ring lasers; Semiconductor laser arrays; Tunable circuits and devices; Vertical cavity surface emitting lasers; Distributed feedback (DFB) lasers; laser tuning; optical communication; semiconductor lasers; wavelength division multiplexing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2007.904172
