Results 11 to 20 of about 267,024 (268)
Gain Characteristics of Few-Mode EDFA With Different Pump
IEEE Photonics Journal, 2022 Few-mode erbium-doped fiber amplifier (FM-EDFA) is a key device to achieve power compensation in long-haul mode division multiplexing (MDM) optical system.
Wenxuan Xu +7 more
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IEEE Access, 2019 In this letter, a novel dual-beam and tri-band leaky-wave antenna (LWA) based on substrate integrated waveguide (SIW) structure is proposed, which has the capability of wide beam scanning range including broadside direction.
Yunjie Geng +5 more
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A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space
IEEE Access, 2019 A substrate integrated waveguide (SIW) leaky-wave antenna (LWA) array with beam-formed radiation pattern is investigated in this paper. The array is composed of two LWA elements with different parameters of slots.
Yunjie Geng +5 more
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Fiber Residual Stress Effects on Modal Gain Equalization of Few-Mode Fiber Amplifier
Sensors, 2023 The modal gain equalization (MGE) of few-mode fiber amplifiers (FMFAs) ensures the stability of signal transmission. MGE mainly relies on the multi-step refractive index (RI) and doping profile of few-mode erbium-doped fibers (FM-EDFs).
Li Pei +8 more
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Parity-time symmetry in parameter space of polarization
APL Photonics, 2021 Establishing parity-time (PT) symmetry in non-spatial space is a promising way to simplify the PT-symmetry system structure. In this paper, an implementation of PT symmetry in optical polarization space is reported.
Qi Ding +9 more
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IEEE Photonics Journal, 2017 A tunable polarization beam splitter (PBS) is proposed based on a dual-core photonic crystal fiber (DCPCF). The DCPCF is filled with magnetic fluids in the air holes, whose refractive index varies with the magnetic field strength. The two polarized modes
Jianshuai Wang +6 more
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IEEE Access, 2020 In this paper, a smart antenna array based on the image-aware technique that can automatically switch its beam to track users is proposed. Mobilenet, a deep neural network (DNN), is utilized to find the users' position information from images; it is ...
Yuchen Ma +7 more
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Wavefront reconfigurable metasurface through graphene micro-ribbons with resonant strategy
Results in Physics, 2023 The majority of metasurfaces are static in their optical properties due to the principles of their construction. For the effect of wavefront reconfigurable, graphene provides the opportunity for adjustability via gate biasing.
Kai He +6 more
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Transverse Asymmetry of the Index Modulation Profile in Few-Mode Fiber Bragg Grating
Photonics, 2021 The transverse asymmetry of the index modulation profile in the asymmetric few-mode fiber Bragg grating (FM-FBG) was investigated. The transverse asymmetry of the index modulation profile will lead to mode conversion between modes with the different ...
Peihong Guan +6 more
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A New Kind of Circular Polarization Leaky-Wave Antenna Based on Substrate Integrated Waveguide
International Journal of Antennas and Propagation, 2015 A new kind of circular polarization leaky-wave antenna with N-shaped slots cut in the upper side of substrate integrated waveguide (SIW) is investigated and presented.
Chong Zhang +4 more
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