Title :
Asymmetric output characteristics in 1.3-μm spot-size converted laser diodes
Author :
Jang, Donghoon ; Shim, Jongin ; Lee, JungKee ; Eo, Yungseon
Author_Institution :
Optoelectronics Div., Samsung Electron. Company, Ltd, Kyungki-Do, South Korea
fDate :
12/1/2001 12:00:00 AM
Abstract :
A spot-size converted laser diode (SSC-LD) with a vertically tapered passive waveguide structure was fabricated by butt-joint-built-in (BJB) coupling and selective area metal organic chemical vapor deposition growth. A high coupling efficiency exceeding 50% and 1-dB alignment tolerance of ±2.5 μm were obtained at a distance of 20 μm between a flat-end single-mode fiber and the SSC-LD. Experimental results show that the asymmetric output property can be described by the radiation mode added to the guide mode and spatial hole-burning in the active region
Keywords :
MOCVD; laser beams; laser modes; optical couplers; optical fabrication; optical hole burning; quantum well lasers; waveguide lasers; 1.3 micron; 20 micron; 300 micron; 50 percent; active region; alignment tolerance; asymmetric output characteristics; asymmetric output property; butt-joint-built-in coupling; coupling efficiency; distance; experimental results; fabrication; flat-end single-mode fiber; guide mode; laser diodes; radiation mode; selective area metal organic chemical vapor deposition growth; spatial hole-burning; spot-size converted laser diode; spot-size converted laser diodes; vertically tapered passive waveguide structure; Costs; Diode lasers; Electrooptical waveguides; Laser beams; Optical coupling; Optical saturation; Optical waveguides; Packaging; Power generation; Threshold current;
Journal_Title :
Quantum Electronics, IEEE Journal of
