scholarly journals Novel non-planar ring cavity for enhanced beam quality in high-pulse-energy optical parametric oscillators

2014 ◽  
Vol 4 (3) ◽  
pp. 411 ◽  
Author(s):  
Stefano Bigotta ◽  
Georg Stöppler ◽  
Jörg Schöner ◽  
Martin Schellhorn ◽  
Marc Eichhorn
Keyword(s):  
Pulse Energy ◽  
Beam Quality ◽  
Ring Cavity ◽  
Optical Parametric Oscillators ◽  
High Pulse Energy ◽  
Parametric Oscillators ◽  
Optical Parametric ◽  
High Pulse

Novel Non-Planar Ring Cavity for Enhanced Beam Quality in High-Pulse-Energy Optical Parametric Oscillators

2013 ◽  
Author(s):  
Marc Eichhorn ◽  
Georg Stoeppler ◽  
Joerg Schoener ◽  
Martin Schellhorn ◽  
Stefano Bigotta
Keyword(s):  
Pulse Energy ◽  
Beam Quality ◽  
Ring Cavity ◽  
Optical Parametric Oscillators ◽  
High Pulse Energy ◽  
Parametric Oscillators ◽  
Optical Parametric ◽  
High Pulse

scholarly journals High pulse energy fiber/solid-slab hybrid picosecond pulse system for material processing on polycrystalline diamonds

2018 ◽  
Vol 6 ◽  
Author(s):  
Wei Chen ◽  
Bowen Liu ◽  
Youjian Song ◽  
Lu Chai ◽  
Qianjin Cui ◽  
...  
Keyword(s):  
Material Processing ◽  
Pulse Energy ◽  
Beam Quality ◽  
Picosecond Pulse ◽  
High Pulse Energy ◽  
Central Wavelength ◽  
Picosecond Pulses ◽  
High Pulse ◽  
Fiber Mode ◽  
Mode Locked Laser

We demonstrate an all polarization-maintaining (PM) fiber mode-locked laser seeded, hybrid fiber/solid-slab picosecond pulse laser system which outputs $40~\unicode[STIX]{x03BC}\text{J}$, 10 ps pulses at the central wavelength of 1064  nm. The beam quality factors $M^{2}$ in the unstable and stable directions are 1.35 and 1.31, respectively. $15~\unicode[STIX]{x03BC}\text{J}$ picosecond pulses at the central wavelength of 355 nm are generated through third harmonic generation (THG) by using two $\text{LiB}_{3}\text{O}_{5}$ (LBO) crystals, in order to get better processing efficiency on polycrystalline diamonds. The high pulse energy and beam quality of these ultraviolet (UV) picosecond pulses are confirmed by latter experiments of material processing on polycrystalline diamonds. This scheme which combines the advantages of the all PM fiber mode-locked laser and the solid-slab amplifier enables compact, robust and chirped pulse amplification-free amplification with high power picosecond pulses.

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