As[sub 2]S[sub 3]/Sr(Ti[sub 0.7]Co[sub 0.3])O[sub 3] and As[sub 2]S[sub 3]/Sr(Ti[sub 0.6]Fe[sub 0.4])O[sub 3] strip-loaded waveguides for integrated magneto-optical isolator applications
Name
Bi-2009-As2S3Sr(Ti0.7Co0.3)O 3 and As2S3Sr(Ti0.6Fe 0.4)O3 strip-loaded waveguides for integrated magneto-optical isolator applications.pdf
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Checksum (MD5)
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Author(s)
Bi, Lei
Kim, Hyun-Suk
Hu, Juejun
Ross, Caroline A.
Kimerling, Lionel C
Date Issued
February 2009
Journal
Proceedings of SPIE--the International Society for Optical Engineering
Publisher
Society of Photo-optical Instrumentation Engineers
Citation
Bi, Lei et al. “As[sub 2]S[sub 3]/Sr(Ti[sub 0.7]Co[sub 0.3])O[sub 3] and As[sub 2]S[sub 3]/Sr(Ti[sub 0.6]Fe[sub 0.4])O[sub 3] strip-loaded waveguides for integrated magneto-optical isolator applications.” Integrated Optics: Devices, Materials, and Technologies XIII. San Jose, CA, USA: SPIE, 2009. 721803-10. ©2009 SPIE
Version
Final published version
Abstract
Sr(Ti[sub 0.6]Fe[sub 0.4])O[sub 3] (STF) and Sr(Ti[sub 0.7]Co[sub 0.3])O[sub 3] (STC) room-temperature ferromagnetic oxides were grown epitaxially on LaAlO[sub 3](001), (LaSr)(AlTa)O[sub 3] (001) and Si (001) substrates. Both materials were demonstrated to be magneto-optically active, and more optically transparent at 1550nm wavelength compared with other non-garnet ferromagnetic materials. As[sub 2]S[sub 3]/STF and As[sub 2]S[sub 3]/STC strip-loaded waveguides were fabricated on epitaxial STF or STC films grown on LSAT (001) substrates using thermal evaporation and lift-off processing. The absorption of STF at 1550 nm was measured by ellipsometry and by optical transmission spectrum measurements of the As[sub 2]S[sub 3]/STF waveguides, which gave similar results. A novel design for a Non-Reciprocal Phase Shift (NRPS) strip-loaded waveguide using chalcogenide glass (ChG) as the guiding layer is proposed. The NRPS and figure of merit of these waveguides are simulated. The ChG strip-loaded waveguide structure shows advantages both in fabrication and device performance according to the simulation results. Our study suggests the possibility of magneto-optical magneto-optical isolators monolithically integrated on a silicon platform.
MIT Department
Massachusetts Institute of Technology. Materials Processing Center
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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DOI of Published Version
http://dx.doi.org/10.1117/12.809392
