Title :
Coupling and conversion characteristics of spot-size-converter integrated laser diodes
Author :
Kawano, Kenji ; Kohtoku, Masaki ; Okamoto, Hiroshi ; Itaya, Yoshio ; Naganuma, Mitsuru
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
12/1/1998 12:00:00 AM
Abstract :
The coupling and conversion characteristics of four types of spot-size converter integrated laser diodes (SS-LDs) to a single-mode fiber (SMF) in the 1.3-μm-wavelength region are numerically clarified. The SS-LDs are categorized into types with vertical tapers and types with a combination of a lateral taper and a thin-film core. The eigenmodes are obtained by the finite-element method (FEM). The semivectorial 3-D finite-difference (FD) beam propagation method (BPM) is used to calculate the propagating beams
Keywords :
eigenvalues and eigenfunctions; finite difference methods; finite element analysis; integrated optics; optical transmitters; quantum well lasers; conversion characteristics; eigenmodes; finite-element method; semivectorial 3-D finite-difference beam propagation method; single-mode fiber; spot-size converter integrated laser diodes; spot-size-converter integrated laser diodes; thin-film core; vertical tapers; Diode lasers; Finite difference methods; Laser beams; Optical coupling; Optical propagation; Optical waveguides; Quantum well devices; Semiconductor thin films; Semiconductor waveguides; Structural engineering;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.658789
