Low-power-consumption polymer Mach–Zehnder interferometer thermo-optic switch at 532  nm based on a triangular waveguide

This article demonstrates a dispersed-monolayer graphene-doped polymer/silica hybrid Mach–Zehnder interferometer (MZI) thermal optical switch with low-power consumption and fast response. The polymer/silica hybrid MZI structure reduces the power consumption of the device as a result of the large thermal optical coefficient of the polymer material. To further decrease the response time of the thermal optical switch device, a polymethyl methacrylate, doped with monolayer graphene as a cladding material, has been synthesized. Our study theoretically analyzed the thermal conductivity of composites using the Lewis–Nielsen model. The predicted thermal conductivity of the composites increased by 133.16% at a graphene volume fraction of 0.263 vol %, due to the large thermal conductivity of graphene. Measurements taken of the fabricated thermal optical switch exhibited a power consumption of 7.68 mW, a rise time of 40 μs, and a fall time of 80 μs at a wavelength of 1550 nm.

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Comparison of lithium niobate and silicon substrate on phase shift and efficiency performance for mach-zehnder interferometer modulator

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v22.i1.pp352-360 ◽

2021 ◽

Vol 22 (1) ◽

pp. 352

Author(s):

Nor Hidayah Roslan ◽

Aziati H. Awang ◽

Mohd Hanapiah M. Yusoff ◽

Ahmad Rifqi Md Zain

Keyword(s):

Phase Shift ◽

Lithium Niobate ◽

Power Consumption ◽

Low Power ◽

Slow Light ◽

High Efficiency ◽

Zehnder Interferometer ◽

Good Time ◽

Major Drawback ◽

Mach Zehnder Interferometer

<span>In this study, the low-group velocity slow-light mach-zehnder interferometer (MZI) modulator, low loss and high efficiency for two modulator substrate lithium niobate (LN) and silicon were presented and optimized at 1.55µm operating wavelength. The high power consumption of conventional modulator was the major drawback in the operation of modulators. Therefore, it was a good time for low-power modulator design and development and to compare the LN and Silicon modulator on the phase shifted using the slow-light technique by designing the full MZI modulator consisting of splitter and combiner on both substrates. The phase shift of LN is 2% compared with the silicon 0.09% and higher phase shift give better performance with low power consumption due to the change of modulating voltage of the MZI modulator for LN while the silicon depends on modulating voltage manipulating concentration of charge carrier in doped silicon.</span>

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Fabrication of polymer variable optical attenuator with ultra-low power consumption

Modern Physics Letters B ◽

10.1142/s0217984914501139 ◽

2014 ◽

Vol 28 (14) ◽

pp. 1450113 ◽

Cited By ~ 4

Author(s):

Jian Sun ◽

Xibin Wang ◽

Jingwen Sun ◽

Xiaoqiang Sun ◽

Changming Chen ◽

...

Keyword(s):

Power Consumption ◽

Low Power ◽

Wavelength Range ◽

Insertion Loss ◽

Zehnder Interferometer ◽

Low Power Consumption ◽

Spectral Variation ◽

Ultra Low Power ◽

Optical Attenuation ◽

Variable Optical Attenuator

In this paper, a Mach–Zehnder interferometer (MZI) variable optical attenuator (VOA) based on Norland Optical Adhesive73 (NOA73) material has been designed and fabricated. At 1550 nm wavelength, the insertion loss of the VOA was measured to be about 8.1 dB. The developed VOA exhibited ultra-low power consumption of 1.96 mW and high optical attenuation of -29.3 dB. When the attenuation at 1550 nm wavelength was -24.6 dB, the spectral variation was ±2.5 dB within wavelength range of 1510 nm to 1590 nm. The rise and fall times of the device were 1.7 ms and 1.3 ms, respectively.

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Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-209319 ◽

2020 ◽

Vol 64 (1-4) ◽

pp. 165-172

Author(s):

Dongge Deng ◽

Mingzhi Zhu ◽

Qiang Shu ◽

Baoxu Wang ◽

Fei Yang

Keyword(s):

Linear Programming ◽

Power Consumption ◽

Low Power ◽

Optimization Design ◽

Structural Parameters ◽

Axial Position ◽

Low Power Consumption ◽

Optimal Method ◽

Atomic Spin ◽

Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

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