Results 81 to 90 of about 1,253,373 (239)

Multifunctionality in Silicon Photonics Through Temperature‐Driven Inverse Design

Laser &Photonics Reviews, EarlyView.
Temperature‐conditioned inverse design embeds thermo‐optic reconfigurability directly into compact silicon photonic devices. By co‐optimizing a single geometry at 300 K (T1) and 520 K (T2), the same structure supports distinct optical functions, enabling experimentally verified switching and mode conversion without resonant architectures or additional ...
Berkay Neseli, Seokjin Hong, Yeonjun Kim, Seungsoo Lee, Seung‐Yoon Choi, Junyeop Lee, Hyo‐Hoon Park, Mirbek Turduev, Hamza Kurt   +8 more
wiley   +1 more source

Multi-Physics Modeling in Curved Surface Laser Cladding: Impact of Scanning Trajectories and Cladding Parameters on Temperature Field and Coating Thickness

Crystals
In order to apply laser cladding technology to the complex surface processing of hot-working dies, this study developed a numerical model for curved surface laser cladding along various scanning trajectories under multi-physics coupling considering the ...
Chenyun Deng, Wei Chen, Yingxia Zhu
doaj   +1 more source

Characterization and Repetition Rate Locking of a 1 GHz Erbium‐Doped ZBLAN Waveguide‐Chip Comb Laser

Laser &Photonics Reviews, EarlyView.
A compact, erbium‐doped ZBLAN waveguide chip mode‐locked laser that self‐starts, delivers stable ultrashort pulses, and repetition rate locked to a 1 GHz radio‐frequency reference. The laser produces near transform‐limited 324 fs pulses and 12 nm bandwidth with low noise and long‐term stability, with potential applications in optical frequency ...
Wen Qi Zhang, Nicolas Bourbeau Hébert, Dale E. Otten, Colin Hall, David G. Lancaster   +4 more
wiley   +1 more source

Noise Suppression via Gain‐Dispersion‐Managed Nonlinear Amplification in a High‐Power Er‐Fiber Laser

Laser &Photonics Reviews, EarlyView.
Gain‐dispersion‐managed nonlinear pre‐amplification simultaneously suppresses phase and intensity noise, enabling scalable high‐power fiber amplification. The system delivers 102.3 W linearly polarized pulses with 1.19 µJ energy at 85.69 MHz and compresses them to 380 fs. Near‐linear power scaling without evident saturation highlights a practical route
Mei Yang, Yuan Chen, Tingting Liu, Zhuoren Wan, Yan Dai, Suyang Xu, Zhengru Guo, Kun Huang, Ming Yan, Heping Zeng   +9 more
wiley   +1 more source

Chip Scale Emission of Blue Light at Elevated Temperatures in Optical Waveguides Integrated With Rubidium Vapor

Laser &Photonics Reviews, EarlyView.
An integrated atom‐clad waveguide enables chip‐scale blue light generation (420 nm) via a two‐photon ladder transition in rubidium vapor at temperatures up to 240°C. The observed bell‐shaped intensity profile reveals a competitive interplay between local photon generation and macroscopic vapor reabsorption.
Arieh Grosman, Ilan Sher, Roy Zektzer, Noa Mazurski, Uriel Levy   +4 more
wiley   +1 more source

Optimization and simulation of laser cladding process parameters for GX4CrNi13-4 martensitic stainless steel

Cailiao gongcheng
To improve the quality of laser cladding， a finite element analysis process was established， focusing on laser power， scanning speed and powder feed rate as the main process parameters， aiming to reduce the research and development cycle and economic ...
ZHANG Huawei, HE Linghuan, HOU Juan, LI Jiamin, HUANG Aijun   +4 more
doaj   +1 more source

Experimental Study of Laser Cladding Methods on Water Erosion Resistance to Low Pressure Blades Materials of Steam Turbine

Advances in Condensed Matter Physics, 2014
An experimental apparatus was built to study the effects of liquid-solid impact on laser cladding processing specimens of 17-4PH stainless steel material in the present investigation.
Di Zhang, Pengfei Zhao, Wei Zhao, Yaoyuan Luo, Yonghui Xie   +4 more
doaj   +1 more source

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

Laser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang, Tom Reep, Thi Ngoc Lam Tran, Stijn Poelman, Jing Zhang, Jose Carreira, Camiel Op de Beeck, Stijn Cuyvers, Michael Geiselmann, Maximilien Billet, Dries Van Thourhout, Gunther Roelkens, Bart Kuyken   +12 more
wiley   +1 more source

Innovation in additive manufacturing of parts from aluminium matrix composites

MATEC Web of Conferences, 2018
The laser build-up cladding is a well-known technique for additive manufacturing tasks. Modern equipment for the laser cladding enables material to be deposited with the lateral resolution of about 100 μm and to manufacture miniature parts. In this paper
Tarasova Tatiana, Gvozdeva Galina, Ableyeva Riana   +2 more
doaj   +1 more source

Characterization and evaluation of laser cladding deposited coatings [PDF]

INCAS Bulletin
The paper contains recent work of the authors regarding the quality of layers deposited with the laser cladding technique. In the field of additive manufacturing, directed energy deposition (DED) in laser cladding presents both opportunities and ...
Alina DRAGOMIRESCU, Mariana CIURDAS, Mihail BOTAN, Sorina ILINA, Nicolae CONSTANTIN   +4 more
doaj   +1 more source