Translator Disclaimer
Paper
12 May 1995 Precision and performance of polysilicon micromirrors for hybrid integrated optics
Author Affiliations +
Abstract
We have designed and built integrated, movable micromirrors for on-chip alignment in silicon- optical-bench technology. The mirrors are fabricated using surface micromachining with three polysilicon layers. A polysilicon-hinge technology was used to achieve the required vertical dimensions and functionality for alignment in hybrid photonic integrated circuits. The positioning accuracy of the mirrors is measured to be on the order of 0.2 micrometers . This precision is shown theoretically and experimentally to be sufficient for laser-to-fiber coupling. In the experimental verification, we used external actuators to position the micromirror and obtained 45% coupling efficiency from a semiconductor laser (operating at 1.3 micrometers ) to a standard single-mode optical fiber. The stability and robustness of the micromirrors were demonstrated in shock and vibration tests that showed that the micromirrors will withstand normal handling and operation without the need for welding or gluing. This micromirror technology combines the low-cost advantage of passive alignment and the accuracy of active alignment. In addition to optoelectronic packaging, the micromirrors can be expected to find applications in grating-tuned external-cavity lasers, scanning lasers, and interferometers.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Olav Solgaard, Norman C. Tien, Michael J. Daneman, Meng-Hsiung Kiang, Alois Friedberger, Richard S. Muller, and Kam Y. Lau "Precision and performance of polysilicon micromirrors for hybrid integrated optics", Proc. SPIE 2383, Micro-Optics/Micromechanics and Laser Scanning and Shaping, (12 May 1995); https://doi.org/10.1117/12.209011
PROCEEDINGS
11 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Micromirrors used for waveguide coupling
Proceedings of SPIE (October 27 1999)
Reshaping technique for MOEM system fabrication
Proceedings of SPIE (September 02 1998)
Actuation of polysilicon surface-micromachined mirrors
Proceedings of SPIE (March 08 1996)
Micromachined microscanners for optical scanning
Proceedings of SPIE (April 11 1997)
MEMS widely tunable lasers for WDM system applications
Proceedings of SPIE (September 03 2002)

Back to Top