Results 1 to 10 of about 12,800 (128)
Programmable space-frequency linear transformations in photonic interlacing architectures [PDF]
Scientific ReportsProgrammable photonic circuits are versatile platforms that route light through multiple interference paths using reconfigurable optoelectronic elements to perform complex discrete linear operations.
Jonathan Friedman +3 more
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High-Q-Factor Silica-Based Racetrack Microring Resonators
Photonics, 2021 In this paper, ultrahigh-Q factor racetrack microring resonators (MRRs) are demonstrated based on silica planar lightwave circuits (PLCs) platform. A loaded ultrahigh-Q factor Qload of 1.83 × 106 is obtained.
Yue-Xin Yin +8 more
doaj +1 more source
High-Q-Factor Tunable Silica-Based Microring Resonators
Photonics, 2021 A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as the tunable coupler was integrated with a racetrack resonator.
Yue-Xin Yin +8 more
doaj +1 more source
IEEE Photonics Journal, 2022 Based on cascaded Mach-Zehnder interferometer (MZI) lattice filters, we demonstrate and compare silicon O-band 8-channel (de-)multiplexers with flat and Gaussian-like passbands for the 400 GBASE-LR8 norm.
Nannan Ning +5 more
doaj +1 more source
Resolving deep sub-wavelength scattering of nanoscale sidewalls using parametric microscopy
Journal of Electronic Science and Technology, 2021 The quantitative optical measurement of deep sub-wavelength features with sub-nanometer sensitivity addresses the measurement challenge in the semiconductor fabrication process.
Nagendra Parasad Yadav +6 more
doaj +1 more source
Multi-Wavelength Polarizer Based on Metal Grating-Assisted Microstructured Fiber
IEEE Photonics Journal, 2022 Multi-wavelength polarizers have many essential applications in optics, quantum communication, Q switch and relating research fields. However, polarizing waveband of the traditional polarizer is restricted in the structure of fibers, which results in ...
Jiexuan Gu +4 more
doaj +1 more source
Multilayer Architectures Based on a-SiC:H Material: Tunable Wavelength Filters in Optical Processing Devices [PDF]
Journal of Nanoscience and Nanotechnology, 2011 The characteristics of tunable wavelength filters based on a-SiC:H multilayered stacked pin cells are studied both theoretically and experimentally. The optical transducers were produced by PECVD and tested for a proper fine tuning of the cyan and yellow fluorescent proteins emission.
Vieira, Manuela +6 more
openaire +3 more sources
All-Optical OFDM Demultiplexer Based on an Integrated Silicon-on-Insulator Technique
IEEE Photonics Journal, 2016 An all-optical orthogonal frequency-division multiplexing (OFDM) demultiplexer based on silicon-on-insulator (SOI) waveguide technology is proposed and experimentally demonstrated. Such an integrated structure performing a discrete Fourier transform (DFT)
Hai Yu +5 more
doaj +1 more source
Nanomaterials, 2020 The miniaturization and integration of photonic devices are new requirements in the fast-growing optics field. In this paper, we focus on a feature-rich sub-wavelength nanograting-coated single-layer metal film.
Wenli Cui +5 more
doaj +1 more source
IEEE Photonics Journal, 2019 We report a rapid and precise spectral determination approach based on visually patterned integrated narrow bandpass filters. The wavelength of light can be determined accurately even by naked eyes in the aid of the device.
Zhiyi Xuan +11 more
doaj +1 more source