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Broadband Terahertz Photonic Integrated Circuit with Integrated Active Photonic Devices

Mukherjee, Amlan Kusum ; Xiang, Mingjun ; Preu, Sascha (2022)
Broadband Terahertz Photonic Integrated Circuit with Integrated Active Photonic Devices.
In: Photonics, 2021, 8 (11)
doi: 10.26083/tuprints-00020326
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Broadband Terahertz Photonic Integrated Circuit with Integrated Active Photonic Devices
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2021
Publisher: MDPI
Journal or Publication Title: Photonics
Volume of the journal: 8
Issue Number: 11
Collation: 15 Seiten
DOI: 10.26083/tuprints-00020326
Corresponding Links:
Origin: Secondary publication service
Abstract:

Present-day photonic terahertz (100 GHz–10 THz) systems offer dynamic ranges beyond 100 dB and frequency coverage beyond 4 THz. They yet predominantly employ free-space Terahertz propagation, lacking integration depth and miniaturisation capabilities without sacrificing their extreme frequency coverage. In this work, we present a high resistivity silicon-on-insulator-based multimodal waveguide topology including active components (e.g., THz receivers) as well as passive components (couplers/splitters, bends, resonators) investigated over a frequency range of 0.5–1.6 THz. The waveguides have a single mode bandwidth between 0.5–0.75 THz; however, above 1 THz, these waveguides can be operated in the overmoded regime offering lower loss than commonly implemented hollow metal waveguides, operated in the fundamental mode. Supported by quartz and polyethylene substrates, the platform for Terahertz photonic integrated circuits (Tera-PICs) is mechanically stable and easily integrable. Additionally, we demonstrate several key components for Tera-PICs: low loss bends with radii ∼2 mm, a Vivaldi antenna-based efficient near-field coupling to active devices, a 3-dB splitter and a filter based on a whispering gallery mode resonator.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-203260
Additional Information:

Keywords: dielectric waveguides; resonator filters; terahertz; terahertz system-on-chip; Vivaldi antennas

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP)
Date Deposited: 14 Jan 2022 13:28
Last Modified: 23 Aug 2022 11:36
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20326
PPN: 494588551
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