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Proceedings Paper

Designing nonvolatile integrated photonics with low-loss optical phase change materials
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Paper Abstract

The development of low-loss optical phase change materials (O-PCMs) promises to enable a plethora of nonvolatile integrated photonic applications. However, the relatively large optical constants change between different states of calls for a set of new design rationales. Here we report a non-perturbative design that enables low-loss device operation beyond the traditional figure-of-merit limit. The basic design rationale is to engineer the light propagation path through the OPCMs when it is in the low-loss amorphous state, and divert light away from the lossy crystalline state leveraging the large mode modification induced by the O-PCM phase transition. Following this approach, we demonstrate broadband photonic switches with significantly enhanced performances compared to current state-of-the-art.

Paper Details

Date Published: 12 September 2019
PDF: 6 pages
Proc. SPIE 11081, Active Photonic Platforms XI, 110811S (12 September 2019);
Show Author Affiliations
Yifei Zhang, Massachusetts Institute of Technology (United States)
Qihang Zhang, Massachusetts Institute of Technology (United States)
Jeffrey B Chou, Massachusetts Institute of Technology (United States)
Junying Li, Massachusetts Institute of Technology (United States)
Christopher Roberts, Massachusetts Institute of Technology (United States)
Myungkoo Kang, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Claudia Gonçalves, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Richard Soref, Univ. of Massachusetts, Boston (United States)
Carlos Ríos, Massachusetts Institute of Technology (United States)
Mikhail Shalaginov, Massachusetts Institute of Technology (United States)
Kathleen Richardson, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Tian Gu, Massachusetts Institute of Technology (United States)
Vladimir Liberman, Massachusetts Institute of Technology (United States)
Juejun Hu, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 11081:
Active Photonic Platforms XI
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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