Dual Concentric-Ring-Core Fiber With Four Zero-Dispersion Wavelengths for Bey…
Orbital angular momentum (OAM) beams, featuring with unique spatial field distributions, have been extensively investigated and applied into a wide range of fields. In most applications, OAM beams …
Highly Dispersive Optical Fiber for Orbital Angular Momentum Modes
Orbital angular momentum (OAM) modes, featured by the unique properties of the helical phase front and annular intensity profile, have shown enormous potential for a wide range of applications. Opt…
Photothermal Gas Detection With a Dithered Low-Finesse Fiber-Optic Fabry-Pero…
Pump-probe photothermal spectroscopy has been recently proposed for sensitive gas detection. The probe laser wavelength was usually locked at the quadrature point of an interferometer to provide a …
Performance-Enhanced Three-Dimensional Trellis Coded Modulation Based on Four…
In this paper, an encrypted three-dimensional (3D) trellis-coded modulation (TCM) based on mapping by set-partitioning (MSP) of 3D constellation is proposed, for highly reliable and secure short-re…
The Generation of 1.2 μJ Pulses From a Mamyshev Oscillator Based on a High C…
We demonstrate a high-energy and high-average power Mamyshev oscillator based on a high performance large-mode-area step-index germanosilicate-cladding Yb-doped fiber. The oscillation of higher-ord…
Learning Spatially Variant Linear Representation Models for Joint Filtering
Joint filtering mainly uses an additional guidance image as a prior and transfers its structures to the target image in the filtering process. Different from existing approaches that rely on local …
Video-Based Facial Micro-Expression Analysis : A Survey of Datasets, Features…
Unlike the conventional facial expressions, micro-expressions are involuntary and transient facial expressions capable of revealing the genuine emotions that people attempt to hide. Therefore, they…
Deblurring Dynamic Scenes via Spatially Varying Recurrent Neural Networks
Deblurring images captured in dynamic scenes is challenging as the motion blurs are spatially varying caused by camera shakes and object movements. In this paper, we propose a spatially varying neu…
High Power Narrow-Linewidth Fiber Laser Based on Double-Tapered Fiber
A homemade double-tapered Yb-doped fiber is employed in a high-power narrow-linewidth fiber amplifier to improve the thresholds of nonlinear effects and transverse mode instability (TMI) effect. A …
Secure OCDM Mode Division Multiplexed Short-Reach Optical Communication Based…
A secure orthogonal chirp division multiplexing (OCDM) mode division multiplexed (MDM) short-reach optical communication based on time-frequency joint perturbation is proposed in this paper. Firstl…
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