Theoretical and experimental study on intensity modulation differential optical fiber angular displacement sensor
Sign Up to like & getrecommendations! Published in 2021 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32814
Abstract: A sensitive intensity modulation differential optical fiber angular displacement sensor has been developed. The influence of the distance between the end face of the emitting fiber and the reflecting surface, the tilt angle of receiving… read more here.
Keywords: angular displacement; sensor; intensity modulation; displacement ... See more keywords
16QAM spectral efficiency frequency division multiplexing transmission with Tomlinson–Harashima precoding for intensity modulation and direct detection optical links
Sign Up to like & getrecommendations! Published in 2020 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-020-02520-4
Abstract: In the spectral efficient frequency division multiplexing (SEFDM) system, in order to minimize mutual interference between subcarriers, a detector should be introduced at the receiver to handle the interference, but increases the complexity of system.… read more here.
Keywords: division multiplexing; intensity modulation; transmission; frequency division ... See more keywords
Intensity modulation of the population of atomic excited states by using near-infrared femtosecond laser pulses
Sign Up to like & getrecommendations! Published in 2021 at "Journal of the Korean Physical Society"
DOI: 10.1007/s40042-021-00136-9
Abstract: We have theoretically investigated the modulation structures of the excited-state population of an argon atom exposed to a linearly polarized 800-nm laser pulse in the tunneling region. The numerical result identifies a nearly opposite phase… read more here.
Keywords: population atomic; population; intensity modulation; modulation population ... See more keywords
Subcarrier intensity modulation for MIMO visible light communications
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.12.002
Abstract: Abstract In this paper, subcarrier intensity modulation (SIM) is investigated for multiple-input multiple-output (MIMO) visible light communication (VLC) systems. A new modulation scheme called DC-aid SIM (DCA-SIM) is proposed for the spatial modulation (SM) transmission… read more here.
Keywords: intensity modulation; modulation; mimo visible; visible light ... See more keywords
Performance Improvement for Wireless Sensors Networks by Adopting Hybrid Subcarrier Intensity Modulation Over Exponentiated Weibull Turbulence Channels
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3003329
Abstract: We conduct a research on free space optical (FSO) communication system that is applied for transmission in wireless sensor networks (WSN), which is based on the hybrid pulse position modulation-binary phase shift keying-subcarrier intensity modulation… read more here.
Keywords: subcarrier intensity; turbulence; performance; intensity modulation ... See more keywords
A Neuromorphic Silicon Photonics Nonlinear Equalizer For Optical Communications With Intensity Modulation and Direct Detection
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2900568
Abstract: We present the design and numerical study of a nonlinear equalizer for optical communications based on silicon photonics and reservoir computing. The proposed equalizer leverages the optical information processing capabilities of integrated photonic reservoirs to… read more here.
Keywords: optical communications; silicon photonics; equalizer optical; intensity modulation ... See more keywords
Linewidth-related residual intensity modulation in lithium niobate phase modulators.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.388681
Abstract: We present a modified model for residual intensity modulation (RIM) observed in lithium niobate phase modulators, which is suitable for both narrow linewidth and wide linewidth lasers. This model is based on two key points… read more here.
Keywords: intensity modulation; lithium niobate; residual intensity; niobate phase ... See more keywords
Beyond intensity modulation: new approaches to pump-probe microscopy.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.417905
Abstract: Pump-probe microscopy is an emerging nonlinear imaging technique based on high repetition rate lasers and fast intensity modulation. Here, we present new methods for pump-probe microscopy that keep the beam intensity constant and instead modulate… read more here.
Keywords: microscopy; intensity; intensity modulation; probe microscopy ... See more keywords
Complete characterization of picosecond optical pulses by the offset frequency intensity modulation.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.475647
Abstract: We present a method for characterizing the intensity waveform, spectrum, frequency chirp, and spectral phase of picosecond pulses at a moderate repetition rate of ∼100 MHz. The proposed method exploits the intensity modulation at ∼10 GHz, which… read more here.
Keywords: picosecond; frequency; intensity modulation; intensity ... See more keywords
Intensity modulation as a preemptive measure against blinding of single-photon detectors based on self-differencing cancellation
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.17863/cam.33980
Abstract: A.K.-S. gratefully acknowledges financial support from Toshiba Research Europe Ltd. and the Engineering and Physical Sciences Research Council (EPSRC) through an Industrial CASE studentship Grant No. NMZE\187 (RG84410). read more here.
Keywords: intensity modulation; preemptive measure; blinding single; measure blinding ... See more keywords