AWG optical filter with tunable central wavelength and bandwidth based on LNOI and electro-optic effect

Li, Jingyao; Yin, Rui; Ji, Wei; Huang, Qingjie; Gong, Zisu; Lv, Lingyu; Zhou, Xiaoteng

doi:10.1016/j.optcom.2019.124445

Cited by 13 publications

(2 citation statements)

References 12 publications

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“…For example, UMZIs are integrated on the silicon nitride (SiN) platform to generate time bins and analyze entanglement [27,28]. As a main choice for integrated DWDM systems [29], arrayed waveguide gratings (AWGs) have been integrated on silica [30,31], silicon-on-insulator (SOI) [32][33][34], SiN [35], thin-film lithium niobate on insulator (LNOI) [36] and polymer platforms [37]. However, these works are subject to limited scale, and in particular, the two most critical components-DWDMs and UMZIs have not been completely integrated on one single chip.…”

Section: Introductionmentioning

confidence: 99%

Photonic-chip-based dense entanglement distribution

et al. 2023

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The dense quantum entanglement distribution is the basis for practical quantum communication, quantum networks and distributed quantum computation. To make entanglement distribution processes stable enough for practical and large-scale applications, it is necessary to perform them with the integrated pattern. Here, we first integrate a dense wavelength-division demultiplexing system and unbalanced Mach-Zehnder interferometers on one large-scale photonic chip and demonstrate the multi-channel wavelength multiplexing entanglement distribution among distributed photonic chips. Specifically, we use one chip as a sender to produce high-performance and wideband quantum photon pairs, which are then sent to two receiver chips through 1-km standard optical fibers. The receiver chip includes a dense wavelength-division demultiplexing system and unbalanced Mach-Zehnder interferometers and realizes multi-wavelength-channel energy-time entanglement generation and analysis. High quantum interference visibilities prove the effectiveness of the multi-chip system. Our work paves the way for practical entanglement-based quantum key distribution and quantum networks.

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Section: Introductionmentioning

confidence: 99%

Photonic-chip-based dense entanglement distribution

et al. 2023

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“…Their ability to selectively pass or stop different spectral bands is very important in various applications, including optical communication, interconnect, spectroscopy, and sensing [1][2][3][4][5][6]. In recent decades, numerous integrated filters with diverse structures have been proposed, such as arrayed waveguide grating (AWG), echelle diffraction grating (EDG), microring, microdisk, Bragg grating, photonic crystal (PC), Mach-Zehnder interferometer (MZI), directional coupler (DC), and so on [7][8][9][10][11][12][13][14][15][16][17]. By modifying their basic structures, employing new materials, and combining them, customized filtering performances required for specific applications can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Integrated Broadband Filter with Sharp Transition Edges Based on SiN and SiON Composite Waveguide Coupler

Ma,

Shao,

et al. 2023

Photonics

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Broadband filters with sharp transition edges are important elements in diverse applications, including Raman and fluorescence spectral analysis, wideband wavelength-division multiplexing (WDM), and multi-octave interferometry. While the multi-layer thin-film interference broadband filter has been widely applied in various free-space optical systems, its integrated counterpart is still far from mature, which is also highly desired for constructing chip-scale miniature optical modules. In this article, we design, fabricate, and characterize an integrated broadband filter with sharp transition edges. An adiabatic coupler based on silicon nitride (SiN) and silicon oxynitride (SiON) composite waveguide is employed here. Long-pass, short-pass, band-pass, and band-stop filters can be realized in a single design of the composite waveguide coupler for a specific wavelength range, with only a difference in the SiN taper waveguide width. Experimental results with a roll-off value of larger than 0.7 dB nm−1 and a 15 dB extinction ratio (ER) are presented.

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LNOI waveguide grating based true time delay line for tunable bandpass microwave photonic filter

Gong

et al. 2020

Opt Quant Electron

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AWG optical filter with tunable central wavelength and bandwidth based on LNOI and electro-optic effect

Cited by 13 publications

References 12 publications

Photonic-chip-based dense entanglement distribution

Photonic-chip-based dense entanglement distribution

Integrated Broadband Filter with Sharp Transition Edges Based on SiN and SiON Composite Waveguide Coupler

LNOI waveguide grating based true time delay line for tunable bandpass microwave photonic filter

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