Results 21 to 30 of about 63,682 (291)
Mode resolved bend loss in few-mode optical fibers
Optics Express, 2013 We present a novel approach to directly measure the bend loss of individual modes in few-mode fibers based on the correlation filter technique. This technique benefits from a computer-generated hologram performing a modal decomposition, yielding the optical power of all propagating modes in the bent fiber.
P Christian Schulze +2 more
exaly +3 more sources
Sparse intensity sampling for ultrafast full-field reconstruction in low-dimensional photonic systems [PDF]
Communications PhysicsPhase-sensitive measurements usually utilize interferometric techniques to retrieve the optical phase. However, when the feature space of an electromagnetic field is inherently low dimensional, most field parameters can be extracted from intensity ...
Egor Manuylovich
doaj +2 more sources
Interconnection of Few-Mode Fibers and Photonic Integrated Circuits Using Mode-Field Adapters
Photonics, 2022 We propose a detailed method for the interconnection between optical fibers and waveguides of photonic integrated circuits. Appropriate modal transmission is accomplished by matching the mode field diameters from both waveguide structures. Links from one
Oscar González-Cortez +1 more
doaj +1 more source
M2 factor for evaluating fiber lasers from large mode area few-mode fibers
Frontiers in Physics, 2023 Evaluating the laser quality accurately is one of the most important and fundamental physical issues for laser sources, and the beam quality of lasers from the large mode area few-mode fibers have been haunted by the presence of high order mode for many ...
Rumao Tao +7 more
doaj +1 more source
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
Few-Mode Fibers: Characterizations and Applications
2023 Optical Fiber Communications Conference and Exhibition (OFC), 2023 We report design guidelines and modal loss characterizations (light scattering and extra-loss phenomena) of few-mode fibers that allow optimizing their crosstalk, differential mode group delay and differential mode attenuation for practical applications.
Bigot, M. +4 more
openaire +1 more source
Applied Sciences, 2020 Few mode optical fibers are a promising way to continue increasing the data rate in optical communications. However, an efficient method to launch and extract separately each mode is essential. The design of a interferometric spatial mode (de)multiplexer
Xesús Prieto-Blanco +5 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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