High Efficiency Multimode Waveguide Grating Coupler for Few-Mode Fibers
IEEE Photonics Journal, 2022 We describe a novel high coupling efficiency multimode waveguide grating coupler which uses a polysilicon overlay numerically optimized to improve both the directivity and mode-matching of the grating coupler with different modes. The device was realized
Xuetong Zhou, Hon Ki Tsang
doaj +1 more source
Betelgeuse scope: Single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring [PDF]
, 2020 Betelgeuse has experienced a sudden shift in its brightness and dimmed mysteriously. This is likely caused by a hot blob of plasma ejected from Betelgeuse and then cooled to obscuring dust.
J Stone (8102570) +14 more
core +6 more sources
Few-Mode Fiber Characterization System Based on the Spatially and Spectrally Imaging Technique
Sensors, 2022 With the widespread use of few-mode fibers, mode characteristics testing becomes essential. In this paper, current few-mode fiber testing techniques are discussed, and the S2 imaging technique is chosen and demonstrated to be capable of few-mode fiber ...
Jianxun Yu, Fengze Tan, Changyuan Yu
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Autocompensating Measurement-Device-Independent quantum cryptography in few-mode optical fibers [PDF]
EPJ Web of Conferences, 2020 We present an autocompensating quantum cryptography technique for Measurement-Device-Independent quantum cryptography devices with different kind of optical fiber modes.
Liñares-Beiras Jesús +3 more
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Learning the matrix of few-mode fibers for high-fidelity spatial mode transmission
APL Photonics, 2022 Few-mode fibers (FMFs) are promising for advancements in transmission capacity in classical and quantum communications. However, the inherent modal crosstalk limits the practical application of FMF.
Qian Zhang +3 more
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The Brillouin gain of vector modes in a few-mode fiber [PDF]
Scientific Reports, 2017 AbstractIn this work, we demonstrate the measurement of the Brillouin gain spectra of vector modes in a few-mode fiber for the first time using a simple heterodyne detection technique. A tunable long period fiber grating is used to selectively excite the vector modes supported by the few-mode fiber.
Prabin Pradhan +5 more
openaire +3 more sources
Design of Few-Mode Fibers for Mode-Division Multiplexing Transmission
IEEE Photonics Journal, 2013 We investigate the fiber parameters that meet the design conditions for low bending loss and an effectively few-mode operation on few-mode fibers with a step-index profile and a W-shaped refractive index profile for mode-division multiplexing ...
Motoki Kasahara +7 more
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A Review of Using Few-Mode Fibers for Optical Sensing
IEEE Access, 2020 The development of few-mode fiber (FMF) has found numerous interesting applications in optical sensing. Given the remarkable capabilities of FMF, optical sensors of novel functionalities can be deployed.
Islam Ashry +6 more
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Advanced fibre designs for high power laser beam delivery and generation [PDF]
, 2009 Microstructured optical fiber (MOF) technology provides a powerful means to develop fibers with unique and enabling properties with potential uses spanning a very wide range of applications.
Hayes, John +11 more
core +2 more sources
Contactless vital signs monitoring based on few-mode and multi-core fibers
Opto-Electronic Advances, 2020 Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation.
Tan Fengze +4 more
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