期刊
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
卷 21, 期 4, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2014.2369743
关键词
VCSEL; MEMS; MOEMS; polymer; microoptics; SU-8; microlens fabrication; self-alignment; collective fabrication; electro-thermal actuation
资金
- RENATECH (French Network of Major Technology Centers) within LAAS-CNRS
- Region Midi-Pyrenees
- French National Research Agency (ANR) [ANR-09-BLAN-0168-01]
- Agence Nationale de la Recherche (ANR) [ANR-09-BLAN-0168] Funding Source: Agence Nationale de la Recherche (ANR)
In this paper, we discuss the design, fabrication, and characterization of electrothermally actuated polymer-based microoptical electromechanical microsystems (MOEMS) for active microoptics in vertical cavity surface emitting laser (VCSEL) devices. We describe in particular the principle of a SU8-based MOEMS designed for single-mode VCSEL beam active focusing. The ultimate objective is the realization of parallel compact optical scanners for sensing applications using collective and low-cost technologies. After discussing the advantages of the epoxy resist SU-8 for fabricating an integrated movable lens on active optical devices, we present our latest advances in technology for ensuring precise MOEMS fabrication on small III-V samples and for achieving accurate alignment of lenses on suspended circular membranes. Finally, we present our first results on the beam focusing of multimode VCSELs, which demonstrate the feasibility of our approach and could provide new insights in the MEMS-VCSEL field.
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