Silicon dual-series Mach–Zehnder modulator with high linearity

Zhang, Qiang; Yu, Hui; Wang, Linghua; Xia, Penghui; Cheng, Qiman; Fu, Zhilei; Wang, Xiaofei; Yang, Jianyi

doi:10.1364/ol.44.005655

Cited by 14 publications

(1 citation statement)

References 12 publications

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“…In the TFLN platform, the linearity of modulators is mostly limited by the sinusoidal transfer function of the MZM. Additionally, the TFLN platform enables advanced modulation schemes, such as ring-assisted MZMs [17], dual-parallel MZMs [18,19] and cascade MZMs [20], which could further improve the linearity performances of TFLN modulators. To the best of our knowledge, the highest SFDR achieved in the TFLN platform is 99.6 dB•Hz 2/3 [14], and the advanced modulation schemes are yet to be explored.…”

Section: Introductionmentioning

confidence: 99%

Linearity-Enhanced Dual-Parallel Mach–Zehnder Modulators Based on a Thin-Film Lithium Niobate Platform

Huang

Liu

et al. 2022

Photonics

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In this work, we report a linearity-enhanced dual-parallel Mach–Zehnder modulator (MZM) on a thin-film lithium niobate platform. By setting the optical and electrical splitting ratios at a specific condition, the third-order intermodulation distortions (IMD3) of the child MZMs cancel with each other, whereas the first-order harmonics (FH) reach the maximum. Passive devices instead of thermo-optical switches are used to control the optical power and phase of the child MZMs, which greatly improve the device stability and simplify the operation complexity. To the best of our knowledge, the experimental results show a record-high spurious-free dynamic range on a thin-film lithium niobate platform (110.7 dB·Hz2/3 at 1 GHz). The E-O response decayed about 1.9 dB from 10 MHz to 40 GHz, and the extrapolated E-O 3 dB bandwidth is expected to be 70 GHz. A half-wave voltage of 2.8 V was also achieved. The proposed modulator provides a promising solution for high-bandwidth and low-voltage analog optical links.

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Section: Introductionmentioning

confidence: 99%

Linearity-Enhanced Dual-Parallel Mach–Zehnder Modulators Based on a Thin-Film Lithium Niobate Platform

Huang

Liu

et al. 2022

Photonics

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Recent Progress in Electro‐Optic Modulators: Physical Phenomenon, Structures Properties, and Integration Strategy

Yan,

Zhang,

Liu

et al. 2024

Laser & Photonics Reviews

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Electro‐optic modulators (EOMs), serving as indispensable components within photonic integrated circuits, are essential for enabling energy‐efficient, high‐speed, and high‐capacity optical communication systems. This review illustrates the principal physical phenomenon exploited in EOMs and provides a comprehensive analysis of the cutting‐edge EOMs featuring interference structures (Mach–Zehnder modulators and Michelson‐interferometer modulators) and resonance structures (microring modulators, racetrack modulators, and photonic crystal modulators). The comparative analysis of the performance merits and limitations in EOMs is presented, highlighting the combination of diverse electro‐optic material compositions with different optical structures, which reveals a promising integration strategic so as to pursue a trade‐off in modulation performance. It is contributed to the ongoing discourse on optimizing EOMs for the subsequent communication technologies and the advancement of photonic chips.

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Linearity-Enhanced integrated lithium niobate modulator based on carrier separated asymmetric Mach − Zehnder structure

Li,

Zhao,

Tao

et al. 2024

Optics & Laser Technology

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Silicon dual-series Mach–Zehnder modulator with high linearity

Cited by 14 publications

References 12 publications

Linearity-Enhanced Dual-Parallel Mach–Zehnder Modulators Based on a Thin-Film Lithium Niobate Platform

Linearity-Enhanced Dual-Parallel Mach–Zehnder Modulators Based on a Thin-Film Lithium Niobate Platform

Recent Progress in Electro‐Optic Modulators: Physical Phenomenon, Structures Properties, and Integration Strategy

Linearity-Enhanced integrated lithium niobate modulator based on carrier separated asymmetric Mach − Zehnder structure

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