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Proceedings Paper

Monolithic on-chip nonreciprocal photonics based on magneto-optical thin films
Author(s): Juejun Hu; Xue Yin Sun; Qingyang Du; Mehmet Onbasli; Caroline A. Ross
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Paper Abstract

Monolithic integration of nonreciprocal optical devices on semiconductor substrates has been a long-sought goal of the photonics community. One promising route to achieve this goal is to deposit high quality magneto-optical (MO) oxide thin films directly on a semiconductor substrate. In this article, we will review our ongoing progress in material development and device engineering towards enabling a monolithically integrated, high-performance magneto-optical nonreciprocal photonics platform. In particular, we will discuss our recent work which has led to a new pulsed laser deposition (PLD) technique of Ce or Bi substituted yttrium iron garnet (YIG) thin films with reduced thermal budget, simplified growth protocols and improved magneto-optical characteristics. These materials were incorporated in monolithic resonator and interferometer based isolator devices to demonstrate on-chip optical isolation with improved device figure of merit. Challenges and opportunities for monolithic magneto-optical devices will be discussed in the context of our latest material and device performance metrics.

Paper Details

Date Published: 1 March 2016
PDF: 11 pages
Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97500W (1 March 2016); doi: 10.1117/12.2209658
Show Author Affiliations
Juejun Hu, Massachusetts Institute of Technology (United States)
Xue Yin Sun, Massachusetts Institute of Technology (United States)
Qingyang Du, Massachusetts Institute of Technology (United States)
Mehmet Onbasli, Massachusetts Institute of Technology (United States)
Caroline A. Ross, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 9750:
Integrated Optics: Devices, Materials, and Technologies XX
Jean-Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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