Results 41 to 50 of about 9,378 (232)
IEEE Photonics Journal, 2016 We demonstrate a thulium-doped fiber ring laser (TDFRL) integrated with an amplifier, which has a watt-level single-frequency output at 2 $\mu\text{m}$ with a 120-nm wavelength tunability. The TDFRL is constructed based on a hybrid ring-linear resonator
Sun Do Lim, Jae-Keun Yoo, Seung Kwan Kim
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Optimized generation of spatial qudits by using a pure phase spatial light modulator [PDF]
, 2014 We present a method for preparing arbitrary pure states of spatial qudits, namely, D-dimensional (D > 2) quantum systems carrying information in the transverse momentum and position of single photons.
Iemmi, C. +5 more
core +3 more sources
2-D Grating Couplers for Vertical Fiber Coupling in Two Polarizations
IEEE Photonics Journal, 2019 We demonstrate highly efficient couplers in a two-dimensional grating configuration for a vertical fiber-coupling fabricated in the silicon-on-insulator platform.
Tatsuhiko Watanabe +2 more
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Design of high-efficiency all-dielectric polymer meta-surfaces beam deflection blazed grating
Results in Physics, 2020 Optical meta-surface element is a kind of two-dimensional ultra-thin device based on the regular arrangement of single-layer or multi-layer sub-wavelength nanostructure array. It can realize the sudden operation of optical amplitude, phase, polarization,
Yiman Wu +8 more
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Low line density blazed gratings with low blaze angles
Journal of Physics: Conference Series, 2022 Abstract Gratings installed in synchrotron beamlines and instruments have standard line densities ranging from ~300 L/mm up to 2400 L/mm with blaze angles from 0.3° to 2°. For FEL beamlines lower line densities and lower angles are required. To manufacture these in the required high quality poses some challenges with regard to the ruling
Lemke, S. +6 more
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Objective transmission gratings for large Schmidt telescopes [PDF]
, 1969 Several lamellar gratings of 18-in. aperture, with 300 diffraction elements per inch, have been made for determining stellar spectra with wide angle telescopes. Central orders are missing at λ4800, and weak at adjacent wavelengths.
Strong, John, Zwicky, Fritz
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New Journal of Physics, 2013 Intense, femtosecond laser interactions with blazed grating targets are studied through experiment and particle-in-cell (PIC) simulations. The high harmonic spectrum produced by the laser is angularly dispersed by the grating leading to near ...
M Yeung +10 more
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Polarization insensitive blazed diffraction gratings
Journal of the European Optical Society-Rapid Publications, 2006 Gratings insensitive to light polarization may be useful in many areas of optical engineering, particularly in light demultiplexing application. We study different kinds of binary gratings able to present reflected efficiencies higher than 98% in the –1st order.
Bonod, Nicolas +3 more
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Dynamic of Grating Thermal Deformation on Beam Quality for Spectral Beam Combining
Frontiers in Physics, 2022 For spectral beam combining, an experimental system of dynamic beam quality caused by the thermal deformation of a grating has been designed and established.
Zhi-feng Deng +4 more
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High-SMSR wavelength-swept laser with a CL-band mode-hopping free tuning range
Frontiers in Physics, 2023 A high side-mode suppression ratio external-cavity wavelength-swept laser system with a wide mode-hopping free tuning range is developed. The proposed wavelength-swept laser is based on a single-angled facet gain chip in a classical Littman-Metcalf ...
Shan Qiao +16 more
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