Yb:YAG/Cr:YAG microchip laser output energy optimization

2019 ◽  
Author(s):  
Jan Šulc ◽  
Jan Eisenschreiber ◽  
Helena Jelínková ◽  
Karel Nejezchleb ◽  
Václav Škoda
Keyword(s):  
Energy Optimization ◽  
Microchip Laser ◽  
Laser Output ◽  
Output Energy

scholarly journals Passively Q-switched Erbium-Doped Fiber Laser based on Graphene Oxide as Saturable Absorber

2018 ◽  
Vol 39 (3) ◽  
pp. 307-310 ◽  
Author(s):  
A. K. W. Mansoor ◽  
Belal Ahmed Hamida ◽  
Tawfig Eltaif ◽  
E. I. Ismail ◽  
N. A. A. Kadir ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Pulse Width ◽  
Laser Cavity ◽  
Experimental Results ◽  
Laser Output ◽  
Output Energy ◽  
Erbium Doped

Abstract In this paper, passively Q-switched fiber laser is demonstrated and the laser output energy is stabilized by using 2.4 m Erbium-doped fiber laser (EDFL) with a graphene oxide used as saturable absorber (GO-SA). According to the experimental results in the Q-switched configuration, the laser cavity emits a wavelength centered at 1,558.75 nm, and by inserting the GO-SA into EDFL cavity, hence, the laser output energy around 1.68 nJ with an FWHM pulse width of 2.3 µs at 123.5 kHz was achieved.

scholarly journals POWER SCALING IN CONTINUOUS-WAVE YB:YAG MICROCHIP LASER FOR MEASURING APPLICATIONS

2017 ◽  
Vol 8 (3) ◽  
pp. 222-227
Author(s):  
A. M. Ivashko ◽  
V. E. Kisel ◽  
N. V. Kuleshov
Keyword(s):  
Laser Beam ◽  
Output Power ◽  
Continuous Wave ◽  
Beam Quality ◽  
Microchip Laser ◽  
Laser Output ◽  
Laser Beams ◽  
Laser Output Power ◽  
Simultaneous Generation ◽  
Diode Pumped

Characteristics optimization of lasers used in different measuring systems is of great interest up to now. Diode-pumped microchip lasers is one of the most perspective ways for development of solid-state light sources with minimal size and weight together with low energy power consumption. Increasing of output power with good beam quality is rather difficult task for such type of lasers due to thermal effects in the gain crystal under high pump power.The investigation results of continuous-wave longitudinally diode-pumped Yb:YAG microchip laser are presented. In the presented laser radiation from multiple pump laser diodes were focused into the separate zone in one gain crystal that provides simultaneous generation of multiple laser beams. The energy and spatial laser beam characteristics were investigated.Influence of neighboring pumped regions on energy and spatial laser beams parameters both for separate and for sum laser output was observed. The dependences of laser output power from distance between neighboring pumped regions and their number were determined. Decreasing of laser output power was demonstrated with corresponding distance shortening between pumped regions and increasing their quantity with simultaneous improvement of laser beam quality.Demonstrated mutual influence of neighboring pumped regions in the longitudinally diode pumped Yb:YAG microchip laser allow as to generate diffraction limited Gaussian beam with 2W of continuous-wave output power that 30 % higher than in case of one pumped zone. 

Color Centers and Ruby‐Laser Output‐Energy Degradation

1969 ◽  
Vol 40 (4) ◽  
pp. 1792-1802 ◽  
Author(s):  
C. M. Stickley ◽  
H. Miller ◽  
E. E. Hoell ◽  
C. C. Gallagher ◽  
R. A. Bradbury
Keyword(s):  
Ruby Laser ◽  
Laser Output ◽  
Output Energy ◽  
Color Centers ◽  
Energy Degradation

Active optoelectronic system for stabilizing pulsed laser output energy at the fourth‐harmonic frequency

1993 ◽  
Vol 64 (3) ◽  
pp. 612-617 ◽  
Author(s):  
A. Papayannis ◽  
G. Ancellet ◽  
J. L. Conrad ◽  
C. Laqui ◽  
J. Pelon
Keyword(s):  
Pulsed Laser ◽  
Laser Output ◽  
Output Energy ◽  
Harmonic Frequency ◽  
Optoelectronic System ◽  
Fourth Harmonic

scholarly journals Effect of Various Anions and Zwitterions on the Lasing Properties of a Photostable Cationic Laser Dye

1988 ◽  
Vol 8 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Joel M. Kauffman ◽  
James H. Bentley
Keyword(s):  
Chain Length ◽  
Carbon Chain ◽  
Laser Output ◽  
Output Energy ◽  
Energy Output ◽  
Carbon Chain Length ◽  
Laser Dye ◽  
Free Base ◽  
Quaternary Salts

An unusually photostable cationic laser dye first prepared by quaternization of the free base 4PyMPO (Figure 1) with methyl p-toluenesulfonate unexpectedly had, when flashlamp pumped in methanol, half the energy output of four other N-methyl quaternary salts: the methanesulfonate, the trifluoromethanesulfonate, the perchlorate, and the tetrafluoroborate. When four homologous zwitterions (Figure 2) prepared from 4PyMPO were tested in methanol, the output energies ranged from 1.4 to 2.5 times that of the p-toluenesulfonate, and up to 1.3 times that of the salt with the highest output. When flashlamp pumped in water, the zwitterions showed 1.5 to 2.0 times the output energy of the p-toluenesulfonate in water. Many of the dyes displayed laser output curves that were split in the middle, so that lasing energy appeared on either side of a dark valley. Among the zwitterions, a regular shifting from red to blue was observed as the carbon chain length was increased.

747 nm Pr:YAP microchip-laser output characteristics

2011 ◽  
Author(s):  
Martin Fibrich ◽  
Helena Jelínková ◽  
Jan Šulc ◽  
Karel Nejezchleb ◽  
Václav Škoda
Keyword(s):  
Microchip Laser ◽  
Laser Output ◽  
Output Characteristics
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