Title :
Design and fabrication of high-coupling efficiency spot-size converter integrated laser diodes using three-dimensional BMP program
Author :
Yokoyama, Kiyoyuki ; Sekino, Naoko ; Hirono, Takuo ; Tohmori, Yuuichi ; Kawaguchi, Yoshihiro
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
8/1/1998 12:00:00 AM
Abstract :
Attention is focused on butt-joint-type spot-size converter integrated laser diodes (SSC-LD´s), which allow us to independently optimize the high-temperature performance and coupling efficiency. Increasing the coupling efficiency is achieved by using the three-dimensional (3-D) beam propagation method (BPM). Particular attention is paid to keeping coupling efficiency high, while minimizing variations due to fluctuations in fabrication conditions, such as composition and mesa width. The validity of this method is demonstrated by fabricating a device designed in this way; its coupling efficiency is in excellent agreement with the designed value
Keywords :
fluctuations; integrated optics; optical couplers; optical design techniques; optical fabrication; optical transmitters; optical waveguide theory; semiconductor lasers; waveguide lasers; 3D beam propagation method; coupling efficiency; fabrication conditions; fluctuations; high-coupling efficiency spot-size converter integrated laser diode design; high-coupling efficiency spot-size converter integrated laser diode fabrication; high-temperature performance; mesa width; three-dimensional BMP program; Diode lasers; Optical coupling; Optical design; Optical device fabrication; Optical fiber LAN; Optical fiber communication; Optical fiber networks; Optical fiber subscriber loops; Optical losses; Optical waveguides;
Journal_Title :
Lightwave Technology, Journal of
