Results 1 to 10 of about 220,031 (271)
A magnetic field sensor with temperature insensitivity implemented by two fiber Bragg gratings (FBGs) structure is presented and experimentally demonstrated.
Biyan Zhan +9 more
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Smart antenna with automatic beam switching for mobile communication
A new kind of smart antenna capable of automatically switching its main beam to track a moving target is presented. The antenna, which is suitable for mobile communication in long straight spaces, such as railways or highways, integrates a sensing ...
Yuchen Ma +5 more
doaj +1 more source
Interval-Adjustable Multi-Wavelength Erbium-Doped Fiber Laser With the assistance of NOLM or NALM
A novel interval-adjustable multi-wavelength erbium-doped fiber laser (EDFL) is experimentally demonstrated in this paper. The proposed EDFL is based on the cascaded structure of two-segment Sagnac filter and nonlinear optical loop mirror (NOLM).
Qi Zhao +7 more
doaj +1 more source
Telecommunications networks [PDF]
This article assesses the innovation policy objectives underlying the proposed European Union (EU) Telecom Single Market regulation considering disruptive technological developments. The article explores the network operator’s dilemma how to deal with investments in a time where fundamental innovation comes from outside and the regulator’s dilemma how ...
openaire +3 more sources
Dual-Beam Leaky-Wave Antenna Array With Capability of Fixed-Frequency Beam Switching
A novel fixed-frequency beam switchable dual-beam antenna array is presented, which consists five dual-beam leaky-wave antenna (LWA) elements designed on substrate integrated waveguide (SIW) and integrated together on a common substrate. The LWAs work on
Xiaowen Li +5 more
doaj +1 more source
A resonant-ring-assisted large mode area segmented cladding fiber (RR-SCF) with a high-index ring in the core is proposed. Numerical investigations of the effects of the high-index ring on the leakage losses of guiding modes, mode area, and electric ...
Z. Guo +5 more
doaj +1 more source
An approach to generating triangular-shaped waveform with variable symmetry based on two single-drive Mach-Zehnder Modulator is proposed and analyzed. By setting the bias state of modulators, the rotation angle of polarization controller, phase shift of ...
Chuangye Wang +7 more
doaj +1 more source
Gain Characteristics of Few-Mode EDFA With Different Pump
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
doaj +1 more source
Programming telecommunication networks [PDF]
The move toward market deregulation and open competition has sparked a wave of serious introspection in the telecommunications service industry. Telecom providers and operators are now required to open up their primary revenue channels to competing industries.
openaire +1 more source
A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space
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
doaj +1 more source

