Title :
Surface-mountable silicon microlens for low-cost laser modules
Author :
Uekawa, Masahiro ; Sasaki, Hironori ; Shimura, Daisuke ; Kotani, Kyoko ; Maeno, Yoshinori ; Takamori, Takeshi
Author_Institution :
Corporate Res. & Dev. Center, Oki Electr. Ind. Co. Ltd., Tokyo, Japan
fDate :
7/1/2003 12:00:00 AM
Abstract :
A surface-mountable silicon microlens that can be passively aligned in a silicon V-groove is proposed. The microlens has a diffractive optical element on the end facet of a semicylindrical structure whose diameter is identical to that of a single-mode fiber (SMF). The experimental result of coupling efficiency between a distributed feedback laser diode and SMF shows low loss (-3.0 dB) as determined using the microlens. Monte Carlo simulations indicate that the microlens is suitable for low-cost and high-performance optical modules for metro networks.
Keywords :
Monte Carlo methods; distributed feedback lasers; metropolitan area networks; microlenses; modules; optical fibre couplers; optical fibre networks; semiconductor lasers; silicon; -3.0 dB; Monte Carlo simulations; coupling efficiency; diffractive optical element; distributed feedback laser diode; end facet; low-cost high-performance optical modules; low-cost laser modules; metro networks; passively aligned; semicylindrical structure; single-mode fiber; surface-mountable silicon microlens; Diode lasers; Distributed feedback devices; Fiber lasers; Lenses; Microoptics; Optical coupling; Optical diffraction; Optical feedback; Silicon; Surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.813396
