Results 21 to 30 of about 369,043 (263)
IEEE Photonics Journal, 2021 Increasing the threshold of stimulated Brillouin scattering (SBS) by frequency and phase modulation is a productive approach to suppress SBS in optical fiber communications.
Peng Lei +6 more
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56-Gbit/s PAM-4 Optical Signal Transmission Over 100-km SMF Enabled by TCNN Regression Model
IEEE Photonics Journal, 2021 Due to the interaction between chromatic dispersion (CD) and direct detection, the CD induced power-fading effect has been considered as the key point to limit transmission rate and distance in intensity modulation direct-detection (IM/DD) systems.
Jing Zhang +6 more
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Photonics, 2023 This research proposes a method for the simultaneous acquisition of the second harmonic (2f) signal of quartz-enhanced photoacoustic spectroscopy (QEPAS) and the first harmonic (1f) signal of quartz-enhanced photothermal spectroscopy (QEPTS) based on the
Hao Liu +5 more
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IEEE Photonics Journal, 2018 In this paper, we investigate the characteristics of all-optical modulation via thermo-optic effects of an optical microfiber coupler (OMC) and the theoretical analysis and experimental results are shown. The intensity modulation and the phase modulation
Yang Yu +4 more
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On Parameter Estimation for Bandlimited Optical Intensity Channels
Computation, 2019 Parameter estimation is of paramount importance in every digital receiver. This is not only true for radio, but also for optical links; otherwise, subsequent processing stages, like detector units or error correction schemes, could not be operated ...
Wilfried Gappmair
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Intensity-Modulated Polymer Optical Fiber-Based Refractive Index Sensor: A Review
Sensors, 2021 The simple and highly sensitive measurement of the refractive index (RI) of liquids is critical for designing the optical instruments and important in biochemical sensing applications.
Chuanxin Teng +6 more
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Applied Sciences, 2020 We consider an integrated electro-absorption modulator within a coupled-cavity VCSEL structure (EAM-VCSEL). We derive expressions for the modulation transfer function (MTF) of the EAM-VCSEL for small-signal modulation of either VCSEL injection current or
Krassimir Panajotov, Richard Schatz
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All-Optical Modulation Characteristics of a Microfiber Coupler Combined Sagnac Loop
IEEE Photonics Journal, 2019 In this paper, we theoretically and experimentally investigate the all-optical modulation characteristics of a microfiber coupler combined Sagnac loop (MCSL).
Yang Yu +5 more
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Analysis and Experimental Study of a Silicon Photonic Single MRM-Assisted MZI PAM-4 Modulator
IEEE Photonics Journal, 2017 We report on the analysis and experimental study of a silicon photonic single microring modulator (MRM) assisted Mach–Zehnder interferometer for high-speed four-level pulse amplitude modulation (PAM-4).
Rui Li +7 more
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D-Shaped POF Sensors for Refractive Index Sensing—The Importance of Surface Roughness
Sensors, 2019 In this study the influence of the surface roughness on the transmission capacities of D-shaped plastic optical fibers (POFs) and sensors performance was investigated. Five D-shaped POF sensors were produced and characterized for refractive index sensing
Filipa Sequeira +5 more
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