Title :
Alignment-relaxed 1.55 μm multiquantum well lasers fabricated using standard buried heterostructure laser processes
Author :
Shih, M.-H. ; Choa, F.S. ; Kapre, R.M. ; Tsang, W.T. ; Logan, R.A. ; Chu, S.N.G.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., Baltimore, MD, USA
fDate :
6/22/1995 12:00:00 AM
Abstract :
A mode-expansion laser that can be fabricated by standard buried heterostructure laser processes without introducing any extra complex processing steps is demonstrated. With the diluted waveguide structure. The originally strong guided laser mode can be expanded and better matched to the weakly guided fibre mode. Both the coupling efficiency and laser-to-fibre alignment tolerance are improved. Such a laser structure has a great potential to reduce the cost of laser diode modules
Keywords :
laser modes; optical couplers; optical fabrication; optical fibre couplers; quantum well lasers; semiconductor growth; 1.55 mum; alignment-relaxed; complex processing steps; coupling efficiency; diluted waveguide structure; laser diode module cost; laser structure; laser-to-fibre alignment tolerance; mode-expansion laser; multiquantum well lasers; originally strong guided laser mode; standard buried heterostructure laser processes; weakly guided fibre mode;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950747
