Results 11 to 20 of about 478,180 (342)
Fiber Optic Sensors for Harsh and High Radiation Environments in Aerospace Applications
Sensors, 2023 In the upcoming space revolutions aiming at the implementation of automated, smart, and self-aware crewless vehicles and reusable spacecraft, sensors play a significant role in the control systems.
Alberto Rovera +5 more
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Fiber‐Optic Communication Systems [PDF]
, 2002 Preface. 1 Introduction. 1.1 Historical Perspective. 1.2 Basic Concepts. 1.3 Optical Communication Systems. 1.4 Lightwave System Components. Problems. References. 2 Optical Fibers. 2.1 Geometrical-Optics Description. 2.2 Wave Propagation.
G. Agrawal
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Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit [PDF]
Journal of Astronomical Telescopes Instruments and Systems, 2020 . Direct imaging instruments have the spatial resolution to resolve exoplanets from their host star. This enables direct characterization of the exoplanets atmosphere, but most direct imaging instruments do not have spectrographs with high enough ...
S. Haffert +33 more
semanticscholar +1 more source
Photonic lantern tip/tilt detector for adaptive optics systems.
Optics Letters, 2021 In this work, we demonstrate a four-core multicore fiber photonic lantern tip/tilt wavefront sensor. To diagnose the low-order Zernike aberrations, we exploit the ability of the photonic lantern to encode the characteristics of a complex incoming beam at
Daniel Cruz-Delgado +8 more
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Intrinsic Point Defects in Silica for Fiber Optics Applications
Materials, 2021 Due to its unique properties, amorphous silicon dioxide (a-SiO2) or silica is a key material in many technological fields, such as high-power laser systems, telecommunications, and fiber optics.
Giuseppe Mattia Lo Piccolo +2 more
semanticscholar +1 more source
FUTURE TRENDS IN FIBER OPTICS COMMUNICATION
International Journal of Engineering Applied Sciences and Technology, 2020 –Fiber optic systems are important telecommunication infrastructure for world-wide broadband networks. Wide bandwidth signal transmission with low delay is a key requirement in present day applications.
Ankur Tiwari, Raj Kumar, Abhishek Saxena
semanticscholar +1 more source
Achievable Information Rates for Fiber Optics: Applications and Computations [PDF]
Journal of Lightwave Technology, 2017 In this paper, achievable information rates (AIR) for fiber optical communications are discussed. It is shown that AIRs such as the mutual information and generalized mutual information are good design metrics for coded optical systems.
A. Alvarado +3 more
semanticscholar +1 more source
High-resolution beam scanning technique with microlens array and adaptive fiber-optics collimator.
Optics Express, 2020 Conventional beam scanning systems employing a microlens array (MLA) suffer from the problem that only discrete diffraction angles can be addressed because of the periodic structure of the MLA.
Xu Yang +7 more
semanticscholar +1 more source
Empowering high-dimensional optical fiber communications with integrated photonic processors [PDF]
Nature Communications, 2023 Mode-division multiplexing (MDM) in optical fibers enables multichannel capabilities for various applications, including data transmission, quantum networks, imaging, and sensing.
Kaihang Lu +6 more
semanticscholar +1 more source
Active and Passive Electronic Components, 2002 In this paper a MMIC QPSK modulator is described. The bit rate of the baseband signal is 155 Mbits/sec, while the frequency of the carrier is fLO=10 GHz . The modulation is performed directly at the RF band and therefore an IF stage is not necessary. The
Petros S. Tsenes +3 more
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