WebThe photorefractive effect induced by 775-nm laser light on doped lithium niobate crystals is investigated by the direct observation in the far field of the transmitted-beam distortion as a function of time. Measurements performed at various Zr-doping concentrations and different light intensities show that the 775-nm light beam induces a steady-state … WebA silicon nitride (SiN) and lithium niobate heterogenous integration platform on SiN waveguide circuits is introduced. An efficient evanescent coupling structure is realized for low‐loss light transitions between waveguides of different materials with a measured mode transition loss of 0.4 dB. An electro‐optic Mach–Zender modulator on SiN is built with …
Crystals Free Full-Text Add-Drop Filter Based on Wavelength ...
Web2 dagen geleden · Lithium niobate compact photonic devices on silicon substrates Slot-Waveguide Silicon Nitride Organic Hybrid Distributed Feedback Laser. Optically Tunable Photoluminescence and Up-Conversion Lasing on a Chip Room-Temperature Broad-Wavelength-Tunable Single-Mode Lasing from Alloyed CdS1–xSex Nanotripods ...点击 … Web27 sep. 2016 · Numerical simulations show that the device has a good performance for the separation of TE and TM polarizations with a high extinction ratio (about 30 dB). The simulated fabrication tolerance for the variation of the waveguide width is about 110 nm and the bandwidth is about 70 nm for the extinction ratio higher than 10 dB. tss invictus
Digitally tunable optical delay line based on thin-film lithium niobate ...
Web14 sep. 2024 · In this paper, we demonstrate integrated photonic chips for multichannel quantum frequency conversion (QFC) based on reverse-proton-exchange periodically … WebIndex Terms—Electrooptical modulators, lithium niobate, op- tical modulator, waveguide devices. INTRODUCTION - nications services and bandwidth has boomed, the need for … Web1 jun. 2011 · Ridge Waveguide Structures in Magnesium-Doped Lithium Niobate This work proposes to establish the feasibility of fabricating isolated ridge waveguides in 5% … tss in the va