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

Huang, Xingrui; Liu, Yang; Tu, Donghe; Yu, Zhiguo; Wei, Qingquan; Li, Zhiyong

doi:10.3390/photonics9030197

Cited by 16 publications

(8 citation statements)

References 22 publications

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“…Finally, the experiment of digitizing an 1 GHz sinusoidal signal with a 20 GS/s optical pulse train was demonstrated. The detailed fabrication process of the devices can be found in our previous work [23]. The devices were fabricated on a x-cut lithium niobate-on-insulator with a 400-nm thick TFLN and a 3-𝜇m buried oxide.…”

Section: Device Fabrication and Experimental Resultsmentioning

confidence: 99%

“…Fig.3(a)shows the microscope image of the demonstrated ADC, and Fig.3(b) and (c) show the scanning electron microscope (SEM) image of the 5×5 MMI and the grating coupler. The detailed fabrication process of the devices can be found in our previous work[23]. The devices were fabricated on a x-cut lithium niobate-on-insulator with a 400-nm thick TFLN and a 3-𝜇m buried oxide.…”

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confidence: 99%

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Photonic sampled and quantized analog-to-digital converters on thin-film lithium niobate platform

Tu¹,

Huang²,

Liu³

et al. 2022

Preprint

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In this paper, an on-chip photonic sampled and quantized analog-to-digital converter (ADC) on thin-film lithium niobate platform is experimentally demonstrated. Using two phase modulators as a sampler and a 5×5 multimode interference (MMI) coupler as a quantizer, an 1 GHz sinusoidal analog input signal was successfully converted to a digitized output with a 20 GSample/s sampling rate. To evaluate the system performance, the quantization curves together with the transfer function of the ADC were measured. The experimental effective number of bits (ENOB) was 3.17 bit. The demonstrated device is capable of operating at a high frequency up to 70 GHz, making it a promising solution for on-chip ultra-high speed analog-to-digital conversion.

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Section: Device Fabrication and Experimental Resultsmentioning

confidence: 99%

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confidence: 99%

Photonic sampled and quantized analog-to-digital converters on thin-film lithium niobate platform

Tu¹,

Huang²,

Liu³

et al. 2022

Preprint

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“…The device pattern was defined by electron beam lithography (EBL) and Argon-based inductively coupled plasma reactive ion etching. The detailed fabrication process can be found in our previous work [33].…”

Section: Methodsmentioning

confidence: 99%

Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate

Huang

Yin

et al. 2022

Photonics

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In this work, we propose a mode-conversion-based chirped Bragg grating on thin-film lithium niobate (TFLN). The device is mainly composed of a 4.7-mm long chirped asymmetric Bragg grating and an adiabatic directional coupler (ADC). The mode conversion introduced by the ADC allows the chirped Bragg grating operates in reflection without using an off-chip circulator. The proposed device has experimentally achieved a total time delay of 73.4 ps over an operating bandwidth of 15 nm. This mode-conversion-based chirped Bragg grating shows excellent compatibility with other devices on TFLN, making it suitable in monolithically integrated microwave photonics, sensing, and optical communication systems.

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“…Table 1 and 2 summarize the progress of different TFLN modulators with the MZI structure. [ 5,6,12,15,26–107 ] Figure summarizes the half‐wave voltage, device length, and bandwidth of etched and non‐etched TFLN modulators. Both these two kinds of modulators can realize a very high bandwidth.…”

Section: Mzi‐based Tfln Modulatormentioning

confidence: 99%

Compact and Efficient Thin‐Film Lithium Niobate Modulators

Chen,

Gao,

Lin

et al. 2023

Advanced Photonics Research

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Thin‐film lithium niobate (TFLN) modulators have garnered significant attention in the field of integrated photonics due to their ability to manipulate light. Numerous TFLN modulators have been demonstrated over the past few years, with speed records consistently being broken. However, due to the low refractive index contrast and anisotropic properties of TFLN, modulators based on this material feature larger device sizes and lower efficiency. A more compact and efficient modulator is important, as it is required for future dense integration and low power consumption applications. There have been some reports on how to reduce device size, and research is ongoing. A comprehensive summary can help individuals understand the current state of research and existing problems. In this review, we provide an overview of recent advancements in TFLN modulator technology, focusing on compactness and efficiency. Herein, various types of modulators, such as the Mach–Zehnder interferometer, Michelson interferometer, resonator cavity, and Z‐cut type modulators, are discussed. Moreover, potential improvement strategies and applications for compact and efficient TFLN modulators in advanced photonic systems are explored. In conclusion, in this review, the recent achievements in compact and efficient TFLN modulators are summarized and their significance in various optoelectronic applications is emphasized.

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

Cited by 16 publications

References 22 publications

Photonic sampled and quantized analog-to-digital converters on thin-film lithium niobate platform

Photonic sampled and quantized analog-to-digital converters on thin-film lithium niobate platform

Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate

Compact and Efficient Thin‐Film Lithium Niobate Modulators

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