Results 31 to 40 of about 220,476 (294)
High-resolution, large dynamic range fiber length measurement based on frequency-shifted asymmetrical Sagnac interferometer [PDF]
, 2005 We propose and experimentally demonstrate a single-mode fiber length and dispersion measurement system based on a novel frequency-shifted asymmetric Sagnac interferometer incorporating an acousto-optic modulator (AOM).
Lo, Hoi-Kwong +3 more
core +2 more sources
Few-Mode Elliptical-Core Fiber Data Transmission
IEEE Photonics Technology Letters, 2012 Spatial mode-division-multiplexing is seen as paramount to overcoming the bandwidth limitations of single-mode fiber. In this letter, spatial-multiplexing of polarization-maintaining, elliptical-core fiber is proposed using asymmetric Y-junctions. Asymmetric Y-junctions also allow for straightforward wavelength- and polarization-multiplexing. Numerical
Riesen, Nicholas +2 more
openaire +3 more sources
Mode Field Diameter Definitions for Few-Mode Fibers Based on Spot Size of Higher-Order Gaussian Mode
IEEE Photonics Journal, 2020 The spot size at which the electric field distribution for higher-order modes in few-mode fibers (FMFs) is approximated by a higher-order Gaussian profile is a promising parameter for estimating various transmission characteristics.
Atsushi Nakamura, Daisuke Iida
doaj +1 more source
IEEE Photonics Journal, 2022 We studied the transverse mode instability (TMI) characteristics of few-mode fiber laser amplifier employing ytterbium-doped fiber (YDF) with core/cladding diameter of 30/400 μm under different bending diameters.
Yujun Wen +6 more
doaj +1 more source
Dispersive Fourier transform using few-mode fibers for real-time and high-speed spectroscopy [PDF]
, 2012 Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIIDispersive Fourier Transform (DFT) is a powerful technique for real-time and high-speed spectroscopy.
Qiu, Y, Tsia, KK, Wong, KKY, Zhang, C
core +1 more source
Mid-infrared generation beyond 3.5 µm in a graded-index silica fiber [PDF]
EPJ Web of Conferences, 2023 We present theoretical as well as experimental evidence of far-detuned nonlinear wavelength conversion towards the mid-infrared, namely beyond 3.5 µm, in a few-mode graded-index silica fiber pumped at 1.064 µm.
Stefanska Karolina +5 more
doaj +1 more source
Measurement of Principal Modes in Few-Mode Fibers by S2 Method
IEEE Photonics Journal, 2020 Using principal modes (PMs) can avoid the inter-mode crosstalk in fiber-optic communication and reduce the complexity of digital signal processing. In this paper, a new detection method for PMs based on spatially and spectrally resolved imaging (S2) is ...
Zixiang Di +5 more
doaj +1 more source
Block-Based Mode Decomposition in Few-Mode Fibers
PhotonicsA block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all ...
Chenyu Wang +6 more
doaj +1 more source
Mode division multiplexing using an orbital angular momentum mode sorter and MIMO-DSP over a graded-index few-mode optical fibre [PDF]
, 2015 Mode division multiplexing (MDM)– using a multimode optical fiber’s N spatial modes as data channels to transmit N independent data streams – has received interest as it can potentially increase optical fiber data transmission capacity N-times with ...
Ahmed, Nisar +14 more
core +2 more sources
Long distance transmission in few-mode fibers
Optics Express, 2010 Using multimode fibers for long-haul transmission is proposed and demonstrated experimentally. In particular few-mode fibers (FMFs) are demonstrated as a good compromise since they are sufficiently resistant to mode coupling compared to standard multimode fibers but they still can have large core diameters compared to single-mode fibers.
Yaman, Fatih +4 more
openaire +3 more sources