Results 21 to 30 of about 7,039,787 (310)
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Time and frequency transfer over optical networks [PDF]
, 2013 This paper aims to summarize and express network requirements of time and frequency transfer over optical networks performed in National Research and Education networks of France and Czech Republic.
Camisard, Emilie; GIP RENATER +1 more
core +1 more source
Ultra-Wideband WDM Optical Network Optimization
, 2020 Ultra-wideband wavelength division multiplexed networks enable operators to use more effectively the bandwidth offered by a single fiber pair and thus make significant savings, both in operational and capital expenditures.
Mateusz Żotkiewicz +2 more
core +1 more source
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
doaj +1 more source
IEEE Photonics Journal, 2020 An image compression-encryption scheme utilizing the combination of fiber specklegram-based compressive sensing (CS) and double random phase encoding (DRPE) was demonstrated.
Yan Liu +7 more
doaj +1 more source
Probabilistically Shaped PAM-8 Transmission With Simplified Volterra Equalizer
IEEE Photonics Journal, 2022 Intensity-modulation direct-detection (IM/DD) probabilistically shaped (PS) 8-level pulse-amplitude modulation (PAM) signal is promising for high-speed intra-data-center networks.
Mingyi Gao +3 more
doaj +1 more source