Title :
New collimating lens systems for laser diode package
Author :
Yagiu, Yasutoshi ; Kumazawa, Tetsuo ; Shimaoka, Makoto
Author_Institution :
Hitachi Ltd., Ibaraki, Japan
Abstract :
The design of a new collimating lens system for a laser diode package for optical communication is discussed. This collimating lens system achieves enough space between the laser chip and the lens, with the beam diameter smaller than the effective diameter of the isolator. This system consists of two lenses. For beam angle deviations caused by misalignments of the laser diode and the lens system, the relationships between the beam diameter and the beam angle deviation ratios are the same as those of the conventional lens system. It is demonstrated that making the beam diameter small decreases the beam angle deviation ratios. This result is useful for designing a laser diode package
Keywords :
integrated optics; lenses; optical collimators; optical communication equipment; optical fibre communication; optical transmitters; packaging; semiconductor lasers; beam angle deviations; beam diameter; collimating lens systems; laser diode package; optical communication; Assembly; Diode lasers; Driver circuits; Laser beams; Lenses; Optical collimators; Optical design; Optical surface waves; Packaging; Surface emitting lasers;
Conference_Titel :
Electronic Components and Technology Conference, 1993. Proceedings., 43rd
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0794-1
DOI :
10.1109/ECTC.1993.346692
