Theory of spontaneous emission in gain-guided laser amplifiers

1983 ◽  
Vol 19 (19) ◽  
pp. 798 ◽  
Author(s):  
J. Arnaud
Keyword(s):  
Spontaneous Emission ◽  
Laser Amplifiers

scholarly journals The output of a laser amplifier with simultaneous amplified spontaneous emission and an injected seed

2009 ◽  
Vol 27 (3) ◽  
pp. 393-398 ◽  
Author(s):  
H. Huang ◽  
G.J. Tallents
Keyword(s):  
Spontaneous Emission ◽  
Extreme Ultraviolet ◽  
Amplified Spontaneous Emission ◽  
Gain Saturation ◽  
Free Electron Lasers ◽  
Laser Amplifier ◽  
One Dimensional ◽  
X Ray ◽  
Laser Amplifiers ◽  
Harmonic Radiation

AbstractThe minimum irradiance needed to overcome amplified spontaneous emission (ASE) of a seed beam injected into a laser amplifier is evaluated. The treatment is particularly applicable to extreme ultraviolet (EUV) and X-ray laser schemes to inject laser harmonic radiation as a seed into (1) plasma laser amplifiers and (2) free-electron lasers. Simple expressions and calculations are given for the minimum injected irradiance required for amplification of the injected seed beam to exceed ASE from the amplifier, including the effects of gain saturation, assuming one dimensional radiative transfer.

scholarly journals Effect of amplified spontaneous emission and parasitic oscillations on the performance of cryogenically-cooled slab amplifiers

2013 ◽  
Vol 31 (4) ◽  
pp. 553-560 ◽  
Author(s):  
Magdalena Sawicka ◽  
Martin Divoky ◽  
Antonio Lucianetti ◽  
Tomas Mocek
Keyword(s):  
Energy Storage ◽  
Spontaneous Emission ◽  
Operating Temperature ◽  
Three Dimensional ◽  
Amplified Spontaneous Emission ◽  
Stored Energy ◽  
Laser Amplifiers ◽  
Slab Laser ◽  
Heat Deposition

AbstractWe present a three-dimensional code for the optimization of energy storage, heat deposition, and amplification in square-shaped laser slabs and multi-slab laser amplifiers. The influence of the slab dimensions, slab face and edge reflectivities, pump parameters, and operating temperature on amplified spontaneous emission and stored energy has been investigated. The multi-slab and single-slab configurations are compared, analyzing in detail the influence of the absorption cladding for the suppression of amplified spontaneous emission radiation.

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