Abstract
This paper presents an on-chip miniaturized MEMS tunable laser, with a 3-dimensional micro coupling system to improve the coupling efficiency and side mode suppression radio. The prototype is fabricated on an SOI wafer by DRIE process. It obtains a coupling efficiency as high as 76.5%. It offers an improved tuning over a range of 48 nm. Compared with other hybrid-integrated tunable lasers, the compact MEMS tunable laser has merits as fast tuning speed, large tuning range, and a single-chip solution.
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