scholarly journals Recent developments in new laser systems used for material processing

1994 ◽  
Vol 04 (C4) ◽  
pp. C4-13-C4-23 ◽  
Author(s):  
E. BEYER ◽  
V. KRAUSE ◽  
P. LOOSEN
2021 ◽  
Vol 346 ◽  
pp. 01020
Author(s):  
Ruslan Chkalov

The article is devoted to the task of organization of complex interaction between separate modules of technological installations for material processing. The basic principles of control software development of industrial laser systems for precision processing, the possibility of implementing remote control of the complex executing hardware are considered. The system application examples for solving problems of high-precision processing of transparent solid materials are shown.


1986 ◽  
Author(s):  
David R. Taeusch ◽  
John M. Ruselowski

Author(s):  
H. Haferkamp ◽  
M. Goede ◽  
A. Ostendorf ◽  
M. Drygalla ◽  
O. Berend ◽  
...  

2014 ◽  
Vol 28 (12) ◽  
pp. 1442004
Author(s):  
Hongjie Wang ◽  
Dmitry Gaponov ◽  
Amélie Cabasse ◽  
Gilles Martel ◽  
Ammar Hideur ◽  
...  

In this paper, we review our recent developments on ultrafast pulse generation in erbium-doped fiber laser systems operating in the 1550 nm wavelength range. This work concerns the generation of ultrafast pulses from dissipative soliton fiber lasers featuring resonant saturable absorber mirrors, as well as their amplification in highly efficient erbium-doped large-mode-area fibers. Different amplification schemes featuring all-fiber components are studied leading to the achievement of record pulse energy from a high repetition rate laser system.


Science ◽  
2019 ◽  
Vol 363 (6422) ◽  
pp. eaar7709 ◽  
Author(s):  
Mohammad-Ali Miri ◽  
Andrea Alù

Exceptional points are branch point singularities in the parameter space of a system at which two or more eigenvalues, and their corresponding eigenvectors, coalesce and become degenerate. Such peculiar degeneracies are distinct features of non-Hermitian systems, which do not obey conservation laws because they exchange energy with the surrounding environment. Non-Hermiticity has been of great interest in recent years, particularly in connection with the quantum mechanical notion of parity-time symmetry, after the realization that Hamiltonians satisfying this special symmetry can exhibit entirely real spectra. These concepts have become of particular interest in photonics because optical gain and loss can be integrated and controlled with high resolution in nanoscale structures, realizing an ideal playground for non-Hermitian physics, parity-time symmetry, and exceptional points. As we control dissipation and amplification in a nanophotonic system, the emergence of exceptional point singularities dramatically alters their overall response, leading to a range of exotic optical functionalities associated with abrupt phase transitions in the eigenvalue spectrum. These concepts enable ultrasensitive measurements, superior manipulation of the modal content of multimode lasers, and adiabatic control of topological energy transfer for mode and polarization conversion. Non-Hermitian degeneracies have also been exploited in exotic laser systems, new nonlinear optics schemes, and exotic scattering features in open systems. Here we review the opportunities offered by exceptional point physics in photonics, discuss recent developments in theoretical and experimental research based on photonic exceptional points, and examine future opportunities in this area from basic science to applied technology.


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