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Bend-free multiarm interferometers on optical chips

Petrovic, Jovana and Maluckov, Aleksandra and Stojanovic, Nikola (2022) Bend-free multiarm interferometers on optical chips. Optical and Quantum Electronics. Springer Nature. doi: 10.1007/s11082-022-04048-1. ISSN 0306-8919.

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Multiarm interferometers can enhance measurement precision and provide multiparameter capability to the measurement. Their realization requires multiport beam splitters, which has been a long-standing challenge in free-space and integrated optics. Here, we propose a new type of multiport interferometers suitable for implementation on optical chips. Their prospective advantages over the standard directional-coupler architectures: an arbitrary number of arms, planar architecture and two orders of magnitude reduction in footprint, are achieved by the layout based exclusively on the finite modulated photonic lattices. The inverse design of photonic lattices is facilitated by restricting the light propagation to periodic patterns. The corresponding interferometer model predicts the maximum 1 divided by square root of N sensitivity scaling with the number of arms N. While the presented design solutions are ubiquitous to all implementations, the advantages are discussed in both the low and high refractive-index contrast platforms. Finally, we provide an outlook on the possibilities for the interferometer applications in distributed classical and quantum measurements.

Item URL in elib:https://elib.dlr.de/188313/
Document Type:Article
Title:Bend-free multiarm interferometers on optical chips
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Petrovic, JovanaVinca Institute of Nuclear Sciences, BelgradeUNSPECIFIEDUNSPECIFIED
Maluckov, AleksandraVinca Institute of Nuclear Sciences, BelgradeUNSPECIFIEDUNSPECIFIED
Stojanovic, NikolaDLR, Institut für Optische SensorsystemeUNSPECIFIEDUNSPECIFIED
Date:13 September 2022
Journal or Publication Title:Optical and Quantum Electronics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Springer Nature
Keywords:Multiarm interferometer · Photonic lattice · Coupler
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - OptoRob [SY]
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Stojanovic, Nikola
Deposited On:16 Sep 2022 08:45
Last Modified:04 Mar 2024 10:44

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