High-Selectivity On-Chip Optical Bandpass Filter With Sub-100-MHz Flat-Top and Under-2 Shape Factor

Caterina  Taddei; Leimeng Zhuang; Chris G.H. Roeloffzen; M. Hoekman; Klaus-J. Boller

doi:10.1109/LPT.2019.2897859

High-Selectivity On-Chip Optical Bandpass Filter With Sub-100-MHz Flat-Top and Under-2 Shape Factor

Caterina Taddei^*, Leimeng Zhuang, Chris G.H. Roeloffzen, M. Hoekman, Klaus-J. Boller

^*Corresponding author for this work

Laser Physics & Nonlinear Optics

Research output: Contribution to journal › Article › Academic › peer-review

1 Citation (Scopus)

Abstract

We demonstrate a fully tunable microwave photonic bandpass filter fabricated with Si₃N₄/SiO₂ waveguides on a chip. The filter is based on coupled resonator optical waveguide architecture comprising a chain of eight coupled ring resonators, each with an optical roundtrip length of 21 cm (free spectral range of 1.4 GHz), with an adjustable resonance frequency, and with adjustable power coupling. The passband shows a 3-dB bandwidth of 72 MHz with at least 51-dB out-of-band rejection and features simultaneously a flat-top, a shape factor of 1.9, and a group delay variation smaller than 2 ns.

Original language	English
Article number	8636516
Pages (from-to)	455-458
Number of pages	4
Journal	IEEE photonics technology letters
Volume	31
Issue number	6
DOIs	https://doi.org/10.1109/LPT.2019.2897859
Publication status	Published - 15 Mar 2019

Keywords

Integrated optics
Microwave photonic filter
MWP filter
CROW
Optical waveguide filters
Resonator filter

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Taddei, C., Zhuang, L., Roeloffzen, C. G. H., Hoekman, M., & Boller, K-J. (2019). High-Selectivity On-Chip Optical Bandpass Filter With Sub-100-MHz Flat-Top and Under-2 Shape Factor. IEEE photonics technology letters, 31(6), 455-458. [8636516]. https://doi.org/10.1109/LPT.2019.2897859

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title = "High-Selectivity On-Chip Optical Bandpass Filter With Sub-100-MHz Flat-Top and Under-2 Shape Factor",

abstract = "We demonstrate a fully tunable microwave photonic bandpass filter fabricated with Si3N4/SiO2 waveguides on a chip. The filter is based on coupled resonator optical waveguide architecture comprising a chain of eight coupled ring resonators, each with an optical roundtrip length of 21 cm (free spectral range of 1.4 GHz), with an adjustable resonance frequency, and with adjustable power coupling. The passband shows a 3-dB bandwidth of 72 MHz with at least 51-dB out-of-band rejection and features simultaneously a flat-top, a shape factor of 1.9, and a group delay variation smaller than 2 ns.",

keywords = "Integrated optics, Microwave photonic filter, MWP filter, CROW, Optical waveguide filters, Resonator filter",

author = "Caterina Taddei and Leimeng Zhuang and Roeloffzen, {Chris G.H.} and M. Hoekman and Klaus-J. Boller",

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AU - Hoekman, M.

AU - Boller, Klaus-J.

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KW - Integrated optics

KW - Microwave photonic filter

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