High-beam-quality photonic-crystal lasers
Web1 de jun. de 2024 · Watt-class high-power, high-beam-quality photonic-crystal lasers. Nat. Photonics (2014) C. Holder et al. Demonstration of nonpolar GaN-based vertical-cavity surface-emitting lasers. Appl. Phys. Express (2012) View more references. Cited by (11) WebOptical resonant cavities with high quality factor (Q-factor) are widely used in science and technology for their capabilities of strong confinement of light and enhanced light–matter interaction. The 2D photonic crystal structure with bound states in the continuum (BICs) is a novel concept for resonators with ultra-compact device size, which can be used to …
High-beam-quality photonic-crystal lasers
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Web9 de fev. de 2024 · We propose and develop a new type of non-mechanical three-dimensional (3D) light detection and ranging (LiDAR) system, which integrates a beam-scanning-type laser source and a flash-type laser source. Employing on-chip dually modulated photonic crystal lasers for both flash and beam-scanning sources, we … WebBecause the pattern of the surface-emitted beam from a photonic crystal laser can be determined by the Fourier transformation of its two-dimensional ... Y. Liang, Y. Kurosaka, …
Web15 de jun. de 2024 · A passively Q-switched Yb:YAG/Cr:YAG laser pumped by a photonic-crystal surface-emitting laser (PCSEL) was developed. Yb:YAG crystal was … WebPhotonic-crystal surface-emitting lasers (PCSELs) with modulated photonic crystals have attracted much attention for their unrivaled capabilities, such as broad area coherent …
Web24 de jun. de 2024 · A photonic crystal fiber-based chirped pulse amplification delivering 272 fs pulses of 66.4 µJ energy at a repetition rate of 500 kHz is presented, resulting in an average/peak power of 33.2 W/244 MW. A single grating is adopted for the pulse width stretching and compression, which leads to high-compactness and low cost of the … Web14 de abr. de 2024 · Photonic Crystal Lasers & Membranes for Smart Society & Biomedical Applications. ... The laser, in the 60 years since its invention, has been the critical engine in virtually every facet of modern life. ... The challenges in scaling towards watts level high power high beam quality lasers will be discussed.
Web22 de nov. de 2024 · Epitaxially regrown electrically pumped photonic crystal surface emitting lasers (PCSELs) operating near 2 µm were designed and fabricated within a III-V-Sb material system. A high-index-contrast photonic crystal layer was incorporated into the laser heterostructures by air-pocket-retaining epitaxial regrowth. Transmission electron …
Web30 de mar. de 2024 · Watt-class high-power, high-beam-quality photonic-crystal lasers Kazuyoshi Hirose1,2†*,YongLiang2†,YoshitakaKurosaka1,2, Akiyoshi Watanabe1, … ctiaf speakersWeb14 de abr. de 2024 · A randomly rotated glass slice is inserted before each source to randomise the phase of the laser pulse before hitting on the sandwich crystal. PBS polarisation beam splitter, HWP half-wave plate ... ctiahaoWebThere are (so far less common) lasers where the intracavity laser light essentially propagates in a plane along the wafer surface. That approach allows one to combine some of the advantages of edge-emitting and surface-emitting lasers: The active area and thus the output power can be much higher, also the round-trip gain due to the longer … ctia discount codeWeb13 de abr. de 2024 · Fabrication and characterization of tapered photonic crystal fiber for ... While they exhibit a very good efficiency and exceptionally high damage threshold and/or low thermal loads at high repetition rate, crystal-based OP(CP)A generally suffers from rather poor beam quality. Thus, more recently, fibered OPCPA (f-OPCPA ... earthly bonds defineWeb7 de out. de 2024 · A GaN-based PCSEL can realize high-power, high-beam-quality operation owing to broad-area coherent oscillation at a singularity (e.g., Γ) point of its two … earthly bonds meaningWebThe fiber design has outer dimensions of a rod laser, meaning a diameter in the range of a few millimeters and a length of just a few tens of centimeters, and includes two important waveguide structures, one for pump radiation and one for laser radiation. We obtained 120-W output power in single-mode beam quality from a 48-cm-long fiber cane ... earthly bondsWeb14 de abr. de 2024 · Photonic Crystal Lasers & Membranes for Smart Society & Biomedical Applications. ... The laser, in the 60 years since its invention, has been the … earthly bound