Results 121 to 130 of about 28,722 (257)
Multimode optical fiber based spectrometers
, 2013 A standard multimode optical fiber can be used as a general purpose spectrometer after calibrating the wavelength dependent speckle patterns produced by interference between the guided modes of the fiber. A transmission matrix was used to store the calibration data and a robust algorithm was developed to reconstruct an arbitrary input spectrum in the ...
Redding, Brandon +2 more
openaire +2 more sources
Weak Langmuir turbulence in disordered multimode optical fibers [PDF]
, 2022 K. Baudin +5 more
openalex +1 more source
Germanium‐Based Mid‐Infrared Integrated Photonics
Laser &Photonics Reviews, EarlyView.The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini +6 more
wiley +1 more source
Displacement sensor with a wide dynamic range based on a balloon-like long-period fiber grating
Zhongguo Jianchuan YanjiuObjectiveAiming at the problem of the narrow dynamic range of current optical fiber displacement sensors, a balloon-like long-period fiber grating (LPFG) displacement sensor with a simple structure and easy preparation method is designed. MethodsBased on
Pu CHENG, Huiling QIN, Liang PU
doaj +1 more source
Mid‐Infrared Quantum Scanning Microscopy via Visible Light Beyond Spatial Correlations
Laser &Photonics Reviews, EarlyView.This work introduces a raster‐scanning approach based on quantum imaging with undetected light (QIUL) that probes samples in the mid‐infrared (MIR) spectral range while performing detection in the visible domain. Unlike previous QIUL implementations, this technique operates independently of photon‐pair spatial correlations and relies solely on induced ...
Josué R. León‐Torres +6 more
wiley +1 more source
A Brief Review of Optical Fiber Sensor based on Multimode Interference
Guangtongxin yanjiuOptical fiber sensors based on Multimode Interference (MMI) have received widespread attention due to their distinguished advantages, such as high sensitivity and easy fabrication.
YU Zhenfang +5 more
doaj
Femtosecond nonlinear losses in multimode optical fibers [PDF]
, 2021 Mario Ferraro +6 more
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Non‐Uniform Programmable Photonic Waveguide Meshes
Laser &Photonics Reviews, EarlyView.Integrating defect cells into uniform hexagonal waveguide meshes overcomes the fundamental spectral and temporal limitations of programmable photonics. By leveraging the Vernier effect through non‐uniform coupled cavities, this architecture achieves a tenfold increase in free spectral range and ultra‐fast sampling times, paving the way for next ...
Cristina Catalá‐Lahoz, José Capmany
wiley +1 more source
NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes
Laser &Photonics Reviews, EarlyView.This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber +6 more
wiley +1 more source
Demonstration of Multimode Optical Fiber Communication System using 1300 nm Directly Modulated VCSEL for Gigabit Ethernet [PDF]
, 2018 Tomáš Huszaník +2 more
openalex +1 more source