Monolithic on-chip nonreciprocal photonics based on magneto-optical thin films

Juejun Hu; Xue Yin Sun; Qingyang Du; Mehmet Onbasli; Caroline A. Ross

doi:10.1117/12.2209658

1 March 2016 Monolithic on-chip nonreciprocal photonics based on magneto-optical thin films

Juejun Hu, Xue Yin Sun, Qingyang Du, Mehmet Onbasli, Caroline A. Ross

Proceedings Volume 9750, Integrated Optics: Devices, Materials, and Technologies XX; 97500W (2016) https://doi.org/10.1117/12.2209658
Event: SPIE OPTO, 2016, San Francisco, California, United States

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.

Citation Download Citation

Juejun Hu, Xue Yin Sun, Qingyang Du, Mehmet Onbasli, and Caroline A. Ross "Monolithic on-chip nonreciprocal photonics based on magneto-optical thin films", Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97500W (1 March 2016); https://doi.org/10.1117/12.2209658

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