Silicon Waveguide Optical Isolator Integrated with TE-TM Mode Converter

2015 ◽  
Author(s):  
Akihiro Fujie ◽  
Yuya Shoji ◽  
Tetsuya Mizumoto
Keyword(s):  
Mode Converter ◽  
Optical Isolator ◽  
Silicon Waveguide ◽  
Tm Mode

Tunable acousto-optic TE–TM mode converter on a diffused optical waveguide

1980 ◽  
Vol 5 (3) ◽  
pp. 83 ◽  
Author(s):  
L. N. Binh ◽  
J. Livingstone ◽  
D. H. Steven
Keyword(s):  
Optical Waveguide ◽  
Mode Converter ◽  
Tm Mode

scholarly journals Silicon Waveguide Optical Isolator with Directly Bonded Magneto-Optical Garnet

2019 ◽  
Vol 9 (3) ◽  
pp. 609 ◽  
Author(s):  
Yuya Shoji ◽  
Tetsuya Mizumoto
Keyword(s):  
Phase Shift ◽  
Transverse Electric ◽  
Core Layer ◽  
Transverse Magnetic ◽  
Silicon Waveguide ◽  
Optical Isolation ◽  
Tm Mode ◽  
Mode Converters ◽  
Optical Isolators ◽  
Thin Interlayer

Silicon waveguide optical isolators were fabricated by direct bonding of magneto-optical (MO) garnet. The technique allowed efficient MO phase shift owing to the use of single-crystalline garnet and negligibly thin interlayer on the silicon core layer. A Mach–Zehnder interferometer (MZI) provided optical isolation utilizing the MO phase shift. High isolation, wide bandwidth, and temperature-insensitive operations had been demonstrated by tailoring the MZI design. Also, transverse electric (TE)–transverse magnetic (TM) mode converters were integrated to control operating polarization. In this paper, we reviewed these progresses on silicon waveguide optical isolators.

TE-TM mode converter based on PPLN waveguide

2001 ◽  
Vol 253 (1) ◽  
pp. 201-208
Author(s):  
Yuanxin Xi ◽  
Quan Wang ◽  
Zhiliang Wan ◽  
Xuejin Zhang ◽  
Yanqing Lu ◽  
...  
Keyword(s):  
Mode Converter ◽  
Tm Mode

On-chip optical isolator based on unidirectional wavelength-mode conversion waveguide

2018 ◽  
Vol 32 (22) ◽  
pp. 1850258 ◽  
Author(s):  
Wenlong Liu ◽  
Xuebin Liu ◽  
Qiangqiang Yan ◽  
Simiao Qiang ◽  
Haifeng Pi ◽  
...  
Keyword(s):  
Fundamental Mode ◽  
Mode Conversion ◽  
Forward Direction ◽  
Light Signal ◽  
Necessary Condition ◽  
Order Mode ◽  
Optical Isolator ◽  
Silicon Waveguide ◽  
Time Space ◽  
On Chip

Breaking Lorentz reciprocity is one necessary condition of optical isolator design. Unidirectional wavelength-mode conversion will be realized in a time-dependent system through a short operating range. Based on plasma dispersion effect, generate space-asymmetric periodical time-space modulation on silicon waveguide, and non-reciprocal propagation is realized in the waveguide. The designed unidirectional wavelength-mode conversion waveguide demonstrated that in the forward direction, input 1.55 [Formula: see text]m fundamental mode light signal and then output 1.5492 [Formula: see text]m is of 1st-order mode, while in the backward direction, input 1.5492 [Formula: see text]m is of 1st-order mode light signal and then output 1.5484 [Formula: see text]m is of fundamental mode. Based on this non-reciprocal structure, mode conversion waveguide and two-ring resonance filters were designed then, to accomplish on-chip optical isolation. The scale of the designed isolator is 160 [Formula: see text]m × 60 [Formula: see text]m, and the isolation is 21 dB, revealing perfect application potential.

Design of polarization rotators in TE–TM mode conversion optical isolator with Ce:YIG guiding layer

2015 ◽  
Vol 54 (9) ◽  
pp. 092202 ◽  
Author(s):  
Yukihiro Okada ◽  
Daisuke Tamura ◽  
Kouya Kobayashi ◽  
Hideki Yokoi
Keyword(s):  
Mode Conversion ◽  
Optical Isolator ◽  
Tm Mode ◽  
Polarization Rotators
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