Title :
A new assembly architecture for multichannel single mode-fiber-pigtail LD/PD modules
Author :
Kato, Takeshi ; Yuuki, Fumio ; Tanaka, Katsuya ; Habu, Tooru ; Akiyama, Yasuhiro ; Shimura, Takanori ; Takai, Atsushi ; Mizuishi, Kenichi ; Teraoka, Tatsuo ; Motegi, Yoshihiro
Author_Institution :
Hitachi Ltd., Tokyo, Japan
fDate :
2/1/1993 12:00:00 AM
Abstract :
A new assembly architecture is developed for alignment and soldering between single-mode (SM)-fiber arrays and laser-diode/photodiode (LD/PD) arrays. The image position detection method, by eliminating degrees of freedom for alignment, improves assembly throughput to twice that of the conventional assembly architecture. The thermal shrinkage compensation method achieves high-precision soldering by cancelling misalignments due to thermal shrinkage of assembly equipment and solder volume. As a result, assembly, through all processes, achieves ± 1.5-μm precision, which corresponds to a ±1-dB fluctuation of coupling efficiency. Based on this architecture, eight-channel SM-fiber-pigtail LD/PD modules were successfully assembled
Keywords :
microassembling; modules; optical communication equipment; optical fibres; optical interconnections; packaging; photodetectors; photodiodes; semiconductor laser arrays; soldering; alignment; assembly architecture; image position detection; laser diode arrays; multichannel type; photodiode arrays; single mode fibre pigtail modules; soldering; thermal shrinkage compensation; Assembly; Etching; Lenses; Optical arrays; Optical coupling; Optical fiber devices; Optical fibers; Silicon; Soldering; Throughput;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
