scholarly journals On the study of pulse evolution in ultra-short pulse mode-locked fiber lasers by numerical simulations

2007 ◽  
Vol 15 (13) ◽  
pp. 8252 ◽  
Author(s):  
Thomas Schreiber ◽  
Bülend Ortaç ◽  
Jens Limpert ◽  
Andreas Tünnermann
Keyword(s):  
Numerical Simulations ◽  
Fiber Lasers ◽  
Short Pulse ◽  
Pulse Mode ◽  
Ultra Short Pulse

scholarly journals Laser characteristics of active medium LiLu0.7Y0.3F4:Ce3+in ultra-short pulse mode

2014 ◽  
Vol 560 ◽  
pp. 012016
Author(s):  
I I Farukhshin ◽  
A S Nizamutdinov ◽  
V V Semashko ◽  
S L Korableva
Keyword(s):  
Active Medium ◽  
Short Pulse ◽  
Pulse Mode ◽  
Ultra Short Pulse

scholarly journals Ultra short pico second chirped pulse generation using SESAM based mode-locked fiber laser

2019 ◽  
Author(s):  
Arpan Dutta
Keyword(s):  
Fiber Laser ◽  
Fiber Lasers ◽  
Short Pulse ◽  
Mode Locking ◽  
Pulse Generation ◽  
Short Pulses ◽  
Chirped Pulse ◽  
Chirped Pulse Amplification ◽  
Pulsed Fiber Laser ◽  
Ultra Short Pulse

Ultra short pulse fiber lasers are widely used in many photonic systems for industrial, biomedical and scientific applications. Popularity of these lasers rapidly developed due to increment in demand of shorter pulses for various applications like communication, ophthalmology, micromachining, medical imaging and precision metrology. Pulsed fiber laser can produce ultra short pulses in order of pico or femto second. Mode locking technique is widely used in rare earth doped fiber lasers to produce such ultra short pulses of light. In this paper, pulsed operation of fiber laser was studied experimentally at 1 micron region. Experiment on pulsed fiber laser has been done using ytterbium (Yb) doped active fiber. Using the principle of passive mode locking, a 2.3 pico-second pulse was produced at 1064nm wavelength. A semiconductor saturable absorber mirror was used to mode lock the laser. The spectral domain data showed that the pulse was not Fourier transform limited which means the pulse was chirped. Chirped pulse amplification systems exploit this pulse characteristic for power scaling of ultra-short pico- second to femto-second pulses.

Ultra-short pulse mode-locked rod-type fiber laser

2008 ◽  
Author(s):  
B. Ortac ◽  
O. Schmidt ◽  
T. Schreiber ◽  
A. Hideur ◽  
J. Limpert ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Short Pulse ◽  
Pulse Mode ◽  
Ultra Short Pulse ◽  
Type Fiber

Silicon Thinning using Ultra-Short Pulse Laser Ablation

2004 ◽  
Author(s):  
F. Beaudoin ◽  
P. Perdu ◽  
C. DeNardi ◽  
R. Desplats ◽  
J. Lopez ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Sample Preparation ◽  
Pulse Laser ◽  
Pulse Laser Ablation ◽  
Short Pulse ◽  
Special Care ◽  
Short Pulse Laser ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

Abstract Ultra-short pulse laser ablation is applied to IC backside sample preparation. It is contact-less, non-thermal, precise and can ablate the various types of material present in IC packages. This study concerns the optimization of ultra-short pulse laser ablation for silicon thinning. Uncontrolled silicon roughness and poor uniformity of the laser thinned cavity needed to be tackled. Special care is taken to minimize the silicon RMS roughness to less than 1µm. Application to sample preparation of 256Mbit devices is presented.

UKP-laserbasierte Herstellung von Netzen unterschiedlicher Transmissionsgrade/USP-laser based production of meshes of different transmission degrees

2020 ◽  
Vol 110 (11-12) ◽  
pp. 787-789
Author(s):  
Marcel Simons ◽  
Till Rusche ◽  
Tobias Valentino ◽  
Tim Radel ◽  
Frank Vollertsen
Keyword(s):  
High Precision ◽  
Processing Speed ◽  
Laser Processing ◽  
Short Pulse ◽  
High Quality ◽  
Mesh Width ◽  
Variable Transmission ◽  
Ultra Short Pulse ◽  
Mesh Structures

Die Ultrakurzpuls (UKP)-laserbasierte Bearbeitung erlaubt die Herstellung von Netzstrukturen mit verschiedenen Transmissionsgraden. Vorteile der UKP-laserbasierten Herstellung der Netze liegen vor allem in der hohen Präzision und Bearbeitungsgeschwindigkeit. Die UKP-Laserbearbeitung ermöglicht die Herstellung von Netzen aus Aluminium in hoher Qualität, bezogen auf die Stegbreitenabweichung von < 8 µm, mit variablen Transmissionsgraden. Ultra-short pulse (USP) laser based processing enables the production of mesh structures with different degrees of transmission. The advantages of USP-based production of mesh structures are mainly the high precision and processing speed. USP laser processing enables the production of meshes of aluminum in high quality, with respect to the mesh width deviation of < 8 µm with variable transmission degrees.

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