Integrated multimode interference coupler-based Mach–Zehnder interferometric modulator fabricated on a silicon-on-insulator substrate

Chuang, Ricky W.; Hsu, Mao Teng; Chang, Yin-Jung; Lee, Y.-J.; Chou, Shen Horng

doi:10.1049/iet-opt.2010.0106

Cited by 14 publications

(7 citation statements)

References 14 publications

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“…As stated by the theory of MMI (Lucas B. Soldano and Erik C. M., 1995, Guzman et al, 2010, Younus et al 2021, the transmitted wavelength can be given as Where , D, and L is the NCF RI, diameter and length, P is an integer represents self-image order and = − (Mukhopadhyay et al, 2014), − is the distance of re-image. The peak wavelength shifts as the length, diameter or the RI is varied.…”

Section: Theory and Simulationmentioning

confidence: 99%

“…Optical filters based on cascade (SMS) has considerable attention as a reliable optical device. The principle of the operation is based on the self-image and multimode interference (MMI) phenomena introduced by Soldano (Lucas B. Soldano and Erik C. M., 1995). The peak transmission wavelength shifts by external effect as strain, temperature, and external refractive index (ERI) change.…”

Section: Introductionmentioning

confidence: 99%

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Tunable optical fiber cascade filter by magneto-optical effect

Younus

Al-Dergazly

Abass

2021

Preprint

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Optical filters based on cascade single mode - multimode - single mode fiber structure (SMS) has considerable attention as a reliable optical device the reliability is due to its simplicity, compactness, low cost, all fiber device, low transmission loss, and can be continuously tune the laser wavelength at a specific spectral range. The principle of the operation is based on self- image and multimode interference (MMI) phenomena. A tunable filter was simulated based on cascade single mode-no core-single mode (SNS) fiber structure surrounded by magneto-optical fluid (MOF) using finite element method (FEM), the influence of the no core fiber (NCF) diameter and length on the tunablility and the bandwidth is investigated and optimized. Two materials were adopted as a MOF. The results show that the tunability of the filter can be improved by decreasing the NCF diameter. A continuous wavelength tunability about 37 nm from 1518 to 1555 nm with a bandwidth about 10 nm is obtained. The device is highly stable, inexpensive, provide wide tuning range compared with other tuning methods. This device can be used in optical communication, fiber sensor, spectroscopy, and in fiber laser technology. To the best of our knowledge, this is the first optical fiber MMI tunable filter by magnetic field effect.

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Section: Theory and Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tunable optical fiber cascade filter by magneto-optical effect

Younus

Al-Dergazly

Abass

2021

Preprint

View full text Add to dashboard Cite

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“…This allows a small bending radius, enabling high density of integration [17]. With so many features, a magnitude of research effort was poured into this direction and resulted in many effective designs of integrated components such as ring resonators [18][19][20][21], Mach-Zender interferometers (MZI) [22], interleavers [23], multi-mode interferometers (MMIs) [24], sensors [25][26][27], gyroscopes [28], Bragg-gratings [29], and fiber-grating couplers [30].…”

Section: Introductionmentioning

confidence: 99%

Design of compact, high-speed and low-loss silicon-on-silica electro-optic modulators

Mahrous

Azmy

Afifi

et al. 2020

Semicond. Sci. Technol.

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Throughout a careful step-by-step study, two simple designs of electro-optic modulators are proposed. The study shows the effect of dimensions and doping concentration on the performance parameters such as the modulation bandwidth, the size, the insertion loss and the extinction ratio. One design shows a modulation bandwidth of 54.5 GHz with a relatively short phase shifter length of 2.5 mm, a low optical insertion loss of 1.1 dB and a very high extinction ratio of 30 dB. The other one shows a bandwidth of 12.8 GHz, a phase shifter length of 9 mm, an optical insertion loss of 3.3 dB and an extinction ratio of 3 dB. It is shown that these two designs can fit to the requirements of the 5G telecommunications networks at different points which require different speeds of operation. The designs feature the complementary-metaloxide-semiconductor technology advantages of ease and low-cost of fabrication.

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“…Compared with the conventional directional coupler, the coupler based on the multimode interference (MMI) structure has many advantages including compact structure, good fabrication tolerance, low optical loss, and polarization insensitivity [1][2][3]. The MMI based coupler can constitute the high speed optical switch [4,5], large extinct ratio modulator [6], high Q waveguide microring filter [7], multi-wavelength laser array [8], and compact optical 90° hybrid for a balanced detection receiver [9].…”

Section: Introductionmentioning

confidence: 99%

Optimal design of 850 nm 2×2 multimode interference polymer waveguide coupler by imprint technique

Shao

Han

et al. 2016

Photonic Sens

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A 2×2 optical waveguide coupler at 850 nm based on the multimode interference (MMI) structure with the polysilsesquioxanes liquid series (PSQ-Ls) polymer material and the imprint technique is presented. The influence of the structural parameters, such as the single mode condition, the waveguide spacing of input/output ports, and the width and length of the multimode waveguide, on the optical splitting performance including the excess loss and the uniformity is simulated by the beam propagation method. By inserting a taper section of isosceles trapezoid between the single mode and multimode waveguides, the optimized structural parameters for low excess loss and high uniformity are obtained with the excess loss of -0.040 dB and the uniformity of -0.007 dB. The effect of the structure deviations induced during the imprint process on the optical splitting performance at different residual layer thicknesses is also investigated. The analysis results provide useful instructions for the waveguide device fabrication.

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Integrated multimode interference coupler-based Mach–Zehnder interferometric modulator fabricated on a silicon-on-insulator substrate

Cited by 14 publications

References 14 publications

Tunable optical fiber cascade filter by magneto-optical effect

Tunable optical fiber cascade filter by magneto-optical effect

Design of compact, high-speed and low-loss silicon-on-silica electro-optic modulators

Optimal design of 850 nm 2×2 multimode interference polymer waveguide coupler by imprint technique

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