Results 11 to 20 of about 361 (216)
Photonics, 2022 We report on synchronized dual-wavelength (1.07 μm and 1.24 μm) pulsed lasing driven by a quasi-synchronous primary pumping (at 0.98 μm) of an Yb-doped fiber laser, which incorporates also a P2O5-doped fiber as an intracavity Raman converter.
Boris Nyushkov +4 more
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Systems of advance-delay differential-difference equations and transformation groups
Electronic Journal of Differential Equations, 2016 A linear system of mixed-type differential difference equations is studied. A step derivation method and some conditions on an initial function are used to guarantee existence, uniqueness and smoothness of the solution.
Serguei I. Iakovlev, Valentina Iakovleva
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Few-Mode Fibers With Uniform Differential Mode Group Delay for Microwave Photonic Signal Processing
IEEE Access, 2020 We present a novel design of few-mode fiber (FMF) with a uniform differential mode group delay (U-DMGD) among propagating modes and apply the FMF to a single-fiber delay line module for implementing microwave photonic finite impulse response (FIR ...
Jian Zhao +5 more
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IEEE Access, 2023 We present a novel Z-trench-assisted (Z-TA) graded index 9-LP-mode fiber that significantly suppresses the maximum absolute differential modal group delay (Max $\vert $ DMGD $\vert$ ) while obtaining a high normalized spatial density (NSD).
Yuheng Xie +4 more
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IEEE Photonics Journal, 2010 We propose and experimentally demonstrate a photonic approach for the measurement of microwave frequencies with adjustable measurement range and resolution.
Songnian Fu +3 more
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The Effect of BDS-3 Time Group Delay and Differential Code Bias Corrections on Positioning
Applied Sciences, 2020 The timing group delay parameter (TGD) or differential code bias parameter (DCB) is an important factor that affects the performance of GNSS basic services; therefore, TGD and DCB must be taken seriously.
Peipei Dai +6 more
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مراقبة تشتت نمط الاستقطاب PMD من خلال قياس مطال النبضات الناتجة عن جمع مركبتي الاستقطاب المتعامدتين
مجلة جامعة دمشق للعلوم الهندسية, 2021 في هذا البحث تم اقتراح تقنية جديدة لمراقبة تشتت نمط الاستقطاب polarization mode dispersion (PMD) في شبكات الألياف الضوئية. تعتمد التقنية على تحويل مركبتي الاستقطاب المتعامدتين للإشارة الضوئية المراقبة إلى نفس حالة الاستقطاب ومن ثم يتم جمعهما معاً بفرق ...
د. حيدرا عبد الرحمن عبد الله
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Fractal and Fractional, 2022 In this paper, we give an affirmative answer to a question about the sufficient conditions which ensure that the set of mild solutions for a fractional impulsive neutral differential inclusion with state-dependent delay, generated by a non-compact semi ...
Zainab Alsheekhhussain +2 more
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Bending and twisting effects on multicore fiber differential group delay
Optics Express, 2019 In this paper we provide the theoretical and experimental evaluation of fiber bending and twisting effects on the group delay performance of a homogeneous 7-core fiber. We have experimentally evaluated the differential group delay between the central and outer cores for different curvature radii and twisting conditions, demonstrating that fiber ...
Sergi García +2 more
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Differential Group Delay of the Frequency Following Response Measured Vertically and Horizontally [PDF]
Journal of the Association for Research in Otolaryngology, 2016 The frequency following response (FFR) arises from the sustained neural activity of a population of neurons that are phase locked to periodic acoustic stimuli. Determining the source of the FFR noninvasively may be useful for understanding the function of phase locking in the auditory pathway to the temporal envelope and fine structure of sounds.
King, Andrew +2 more
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