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Proceedings Paper

Transfer and characterization of silicon nanomembrane-based photonic devices on flexible polyimide substrate
Author(s): Xiaochuan Xu; Harish Subbaraman; Daniel Pham; Amir Hosseini; Xiaohui Lin; Ray T. Chen
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Paper Abstract

In this paper, we report the transfer and characterization of in-plane silicon nanomembrane based photonic devices on a Kapton polyimide flexible substrate. Compared with electronic devices and surface normal optical devices, in-plane photonic devices have stringent requirements on transfer precision because any shift in the position or breakage can affect the performance of devices. Therefore, a supporting layer consisting of a photoresist is exploited to protect the device during the transfer process. A modified stamp-assisted transfer technique is employed in order to transfer nanomembrane devices onto the flexible film and the transfer of large aspect ratio (up to 4000) waveguides and 1x6 multimode interference (MMI) couplers on a flexible Kapton substrate is demonstrated. A two-step cleaving method is developed in order to prepare the facets of the transferred waveguides and in-plane light coupling into a 60μm wide, 8mm long flexible waveguide from a lensed fiber is demonstrated. This demonstration opens limitless possibilities for a whole new area of high performance flexible photonic components using silicon nanomembrane technology.

Paper Details

Date Published: 10 February 2011
PDF: 6 pages
Proc. SPIE 7944, Optoelectronic Interconnects and Component Integration XI, 79440F (10 February 2011); doi: 10.1117/12.876037
Show Author Affiliations
Xiaochuan Xu, The Univ. of Texas at Austin (United States)
Harish Subbaraman, Omega Optics, Inc. (United States)
Daniel Pham, The Univ. of Texas at Austin (United States)
Amir Hosseini, The Univ. of Texas at Austin (United States)
Xiaohui Lin, The Univ. of Texas at Austin (United States)
Ray T. Chen, The Univ. of Texas at Austin (United States)

Published in SPIE Proceedings Vol. 7944:
Optoelectronic Interconnects and Component Integration XI
Alexei L. Glebov; Ray T. Chen, Editor(s)

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