Asymmetric multimode interference isolator based on nonreciprocal phase shift

Chen, Ruiyi; Tao, Dongjie; Hao, Yinlei; Yang, Jianyi; Wang, Minghua; Jiang, Xiaoqing

doi:10.1016/j.optcom.2008.11.064

Cited by 14 publications

(6 citation statements)

References 12 publications

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“…With magnetization perpendicular to the direction of light propagation, the permittivity tensor in magnetooptical multi-mode waveguides can be given as [12]:…”

Section: Magneto-optic Eects and The Dielectric Tensormentioning

confidence: 99%

Mode Conversion in SiO₂/ZrO₂Layer Doped with Magnetic CoFe₂O₄Nanoparticles

Bouras

Hocini

2015

Acta Phys. Pol. A

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This paper describes the TE-TM mode conversion in a magneto-optical layer made by a SiO2/ZrO2 layer doped with magnetic CoFe2O4 nanoparticles. The mode conversion is caused by the Faraday rotation if the magnetization is aligned along the z-axis, parallel to mode propagation. The properties of this phenomenon are simulated using the full-vectorial beam propagation method (BPM). The simulation results show clearly the inuence of two parameters in such devices, the rst one is the o-diagonal component of tensor that enhances the rotation and the second one, the imaginary diagonal tensor (parameters K ) which makes it suering from absorption. This result of simulation is an important step to achieve a monolithic integration of optical isolators.

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“…With magnetization perpendicular to the direction of light propagation, the permittivity tensor in magnetooptical multi-mode waveguides can be given as [12]:…”

Section: Magneto-optic Eects and The Dielectric Tensormentioning

confidence: 99%

Mode Conversion in SiO₂/ZrO₂Layer Doped with Magnetic CoFe₂O₄Nanoparticles

Bouras

Hocini

2015

Acta Phys. Pol. A

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“…The asymmetric isolators are shown to be much efficient compared with symmetric ones [62]. The performance of small antennas embedded within MPCs constructed from periodic arrangements of homogenous and anisotropic material layers was demonstrated that the extraordinary high gain and enhanced power reception can be achieved [63].…”

Section: Introductionmentioning

confidence: 99%

New Developments in Liquid Crystals

Tkachenko¹

2009

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Georgiy Tkachenko obtained his MSc in Lasers and Optoelectronic Techniques form the Kharkiv National University of Radioelectronics (Ukraine) in 2007. He carried out his PhD studies at the same university working on tunable optical filters based on porous silicon multilayer films infiltrated with nematic liquid crystals. The degree in Optics and Laser Physics was granted to him in 2012. While working at the University of Bordeaux (France), he has realized a series of quantitative experimental studies on optical radiation forces controlled by the interplay between the chirality of matter and the chirality of optical fields. Georgiy joined the group in September 2014 as a research fellow working on optical trapping and rotation of microscopic particles in viscous environments. Georgiy left the group in May 2017 to take up a position at OIST. PrefaceLiquid crystal technology is a subject of many advanced areas of science and engineering. It is commonly associated with liquid crystal displays applied in calculators, watches, mobile phones, digital cameras, monitors etc. But nowadays liquid crystals find more and more use in photonics, telecommunications, medicine and other fields. Accordingly, first half of this book is dedicated to fundamental properties of liquid crystals, while Chapters 7-12 give a picture of recent trends in the sphere of liquid crystal displays and light modulators.Development of tunable photonic devices is very promising field of use for liquid crystals. Chapters 1 and 2 are focused on one-and two-dimensional photonic crystals whose optical properties are tuned by means of thermal, electrical or optical influence upon the infiltrated liquid crystals. Special attention is paid to infiltration efficiency and the molecule equilibrium organization within hollows of the host material. Chapter 3 presents the study of electrically tunable magneto-optical effects in magnetophotonic crystals filled with nematic liquid crystals.Chapter 4 demonstrates the use of a liquid crystal spatial light modulator for simulation of atmospheric turbulence. This technique can be applied for design and testing of highprecision telescopes, adaptive optical and laser communication systems.Chapter 5 describes a technique based on thermochromic liquid crystal films to obtain two-dimensional thermal images produced by ultrasound physiotherapy equipment.Chapter 6 proposes simple and accurate optical methods for determining the nonlinear refractive coefficient, the nonlinear absorption and the rotational viscosity coefficient in the dye-doped nematic liquid crystal.Of course, the book gives consideration to numerous issues of up-to-date liquid crystal displays. Chapter 7 suggests a polarizer-free display using dye-doped liquid crystal gels whose physical mechanism is mainly the combination of both light scattering and absorption. Potential applications are paper-like flexible displays, electrically tunable light shutters and decorative displays. Chapter 8 is focused on the fundamentals of an active matrix liquid crystal displa...

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“…Isolators are critical for the development of optical systems, particularly in optical communication system, for example, in PONs (Passive Optical Networks) [1][2][3][4][5]. PON is probably the first FTTx (Fiber to the x) technology, in which unidirection plays a very important role [6].…”

Section: Introductionmentioning

confidence: 99%

A Wavelength Selective Bidirectional Isolator

Huang

et al. 2010

2010 Symposium on Photonics and Optoelectronics

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A wavelength selective optical isolator is proposed. Being different from conventional isolators, a welldesigned wave plate is employed and works together with the Faraday rotator. Different wavelengths thus experiences different phase retardation so that wavelength-dependant polarization states are obtained for bidirectional beams. A (1.49μm, 1.31μm) wavelength selective isolator is demonstrated, which means 1.49μm light only may propagate along onedirection why the opposite wave is only for 1.31μm light. Over 60 dB optical isolation is obtained, which has promising applications in access optical networks.

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Asymmetric multimode interference isolator based on nonreciprocal phase shift

Cited by 14 publications

References 12 publications

Mode Conversion in SiO₂/ZrO₂Layer Doped with Magnetic CoFe₂O₄Nanoparticles

Mode Conversion in SiO₂/ZrO₂Layer Doped with Magnetic CoFe₂O₄Nanoparticles

New Developments in Liquid Crystals

A Wavelength Selective Bidirectional Isolator

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Asymmetric multimode interference isolator based on nonreciprocal phase shift

Cited by 14 publications

References 12 publications

Mode Conversion in SiO2/ZrO2Layer Doped with Magnetic CoFe2O4Nanoparticles

Mode Conversion in SiO2/ZrO2Layer Doped with Magnetic CoFe2O4Nanoparticles

New Developments in Liquid Crystals

A Wavelength Selective Bidirectional Isolator

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Mode Conversion in SiO₂/ZrO₂Layer Doped with Magnetic CoFe₂O₄Nanoparticles

Mode Conversion in SiO₂/ZrO₂Layer Doped with Magnetic CoFe₂O₄Nanoparticles