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Proceedings Paper

Focused-ion-beam post-processing technology for active devices
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Paper Abstract

Focused ion beam (FIB) etching technology is a highly efficient post-processing technique with the functionality to perform sputter etching and deposition of metals or insulators by means of a computer-generated mask. The high resolution and the ability to remove material directly from the sample in-situ make FIB etching the ideal candidate for device prototyping of novel micro-size photonic component design. Furthermore, the fact that arbitrary profile can be etched directly onto a sample without the need to prepare conventional mask and photolithography process makes novel device research with rapid feedback from characterisation to design activities possible. In this paper, we present a concise summary of the research work in Cambridge based on FIB technology. We demonstrate the applicability of focussed ion beam post processing technology to active photonic devices research. Applications include the integration of advanced waveguide architectures onto active photonic components. We documents details on the integration of lens structure on tapered lasers, photonic crystals on active SOA-integrated waveguides and surface profiling of low-cost gain-guided vertical-cavity surface-emitting lasers. Furthermore, we discuss additional functions of FIB in the measurement of buried waveguide structures or the integration of total-internal-reflection (TIR) mirror in optical interconnect structures.

Paper Details

Date Published: 10 October 2006
PDF: 12 pages
Proc. SPIE 6352, Optoelectronic Materials and Devices, 635210 (10 October 2006); doi: 10.1117/12.691640
Show Author Affiliations
Chyng Wen Tee, Univ. of Cambridge (United Kingdom)
Fat Kit Lau, Univ. of Cambridge (United Kingdom)
Xin Zhao, Univ. of Cambridge (United Kingdom)
Richard Penty, Univ. of Cambridge (United Kingdom)
Ian White, Univ. of Cambridge (United Kingdom)

Published in SPIE Proceedings Vol. 6352:
Optoelectronic Materials and Devices
Yong Hee Lee; Fumio Koyama; Yi Luo, Editor(s)

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