Compact Mach-Zehnder interferometer Ce:YIG/SOI optical isolators

Samir Ghosh; Shahram Keyvaninia; Yuya Shoji; Wim Van Roy; Tetsuya Mizumoto; Gunther Roelkens; Roel G. Baets

doi:10.1109/LPT.2012.2212426

Compact Mach-Zehnder interferometer Ce:YIG/SOI optical isolators

Samir Ghosh
, Shahram Keyvaninia
, Yuya Shoji
, Wim Van Roy
, Tetsuya Mizumoto
, Gunther Roelkens
, Roel G. Baets

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate an optical isolator integrated with a silicon-on-insulator waveguide platform realized by the adhesive bonding of a Ce:YIG/SGGG die on top of a Mach-Zehnder interferometer (MZI). The design is based on the different nonreciprocal phase shifts (NRPS) experienced by both arms of the interferometer, which have different waveguide widths. Simulation of NRPS versus silicon waveguide width is shown for a few different benzocyclobutene bonding layer thicknesses for a particular silicon waveguide thickness and Ce:YIG/SGGG stack. Variations of NRPS as a function of MZI arm lengths with bonded stack on top of MZI are measured. Optical isolation of 11 dB is experimentally obtained for a device with a footprint of 1.5 mm × 4 μ.

Original language	English
Article number	6263269
Pages (from-to)	1653-1656
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	24
Issue number	18
DOIs	https://doi.org/10.1109/LPT.2012.2212426
Publication status	Published - 2012
Externally published	Yes

Keywords

Benzocyclobutene bonding
Ce:YIG
isolator
silicon on-insulator (SOI)

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10.1109/LPT.2012.2212426

Cite this

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title = "Compact Mach-Zehnder interferometer Ce:YIG/SOI optical isolators",

abstract = "We demonstrate an optical isolator integrated with a silicon-on-insulator waveguide platform realized by the adhesive bonding of a Ce:YIG/SGGG die on top of a Mach-Zehnder interferometer (MZI). The design is based on the different nonreciprocal phase shifts (NRPS) experienced by both arms of the interferometer, which have different waveguide widths. Simulation of NRPS versus silicon waveguide width is shown for a few different benzocyclobutene bonding layer thicknesses for a particular silicon waveguide thickness and Ce:YIG/SGGG stack. Variations of NRPS as a function of MZI arm lengths with bonded stack on top of MZI are measured. Optical isolation of 11 dB is experimentally obtained for a device with a footprint of 1.5 mm × 4 μ.",

keywords = "Benzocyclobutene bonding, Ce:YIG, isolator, silicon on-insulator (SOI)",

author = "Samir Ghosh and Shahram Keyvaninia and Yuya Shoji and \{Van Roy\}, Wim and Tetsuya Mizumoto and Gunther Roelkens and Baets, \{Roel G.\}",

year = "2012",

doi = "10.1109/LPT.2012.2212426",

language = "English",

volume = "24",

pages = "1653--1656",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "18",

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TY - JOUR

T1 - Compact Mach-Zehnder interferometer Ce:YIG/SOI optical isolators

AU - Ghosh, Samir

AU - Keyvaninia, Shahram

AU - Shoji, Yuya

AU - Van Roy, Wim

AU - Mizumoto, Tetsuya

AU - Roelkens, Gunther

AU - Baets, Roel G.

PY - 2012

Y1 - 2012

N2 - We demonstrate an optical isolator integrated with a silicon-on-insulator waveguide platform realized by the adhesive bonding of a Ce:YIG/SGGG die on top of a Mach-Zehnder interferometer (MZI). The design is based on the different nonreciprocal phase shifts (NRPS) experienced by both arms of the interferometer, which have different waveguide widths. Simulation of NRPS versus silicon waveguide width is shown for a few different benzocyclobutene bonding layer thicknesses for a particular silicon waveguide thickness and Ce:YIG/SGGG stack. Variations of NRPS as a function of MZI arm lengths with bonded stack on top of MZI are measured. Optical isolation of 11 dB is experimentally obtained for a device with a footprint of 1.5 mm × 4 μ.

AB - We demonstrate an optical isolator integrated with a silicon-on-insulator waveguide platform realized by the adhesive bonding of a Ce:YIG/SGGG die on top of a Mach-Zehnder interferometer (MZI). The design is based on the different nonreciprocal phase shifts (NRPS) experienced by both arms of the interferometer, which have different waveguide widths. Simulation of NRPS versus silicon waveguide width is shown for a few different benzocyclobutene bonding layer thicknesses for a particular silicon waveguide thickness and Ce:YIG/SGGG stack. Variations of NRPS as a function of MZI arm lengths with bonded stack on top of MZI are measured. Optical isolation of 11 dB is experimentally obtained for a device with a footprint of 1.5 mm × 4 μ.

KW - Benzocyclobutene bonding

KW - Ce:YIG

KW - isolator

KW - silicon on-insulator (SOI)

UR - https://www.scopus.com/pages/publications/84865714107

U2 - 10.1109/LPT.2012.2212426

DO - 10.1109/LPT.2012.2212426

M3 - Article

AN - SCOPUS:84865714107

SN - 1041-1135

VL - 24

SP - 1653

EP - 1656

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 18

M1 - 6263269

ER -

Compact Mach-Zehnder interferometer Ce:YIG/SOI optical isolators

Abstract

Keywords

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