Sensitivity and stability of a radiation-balanced laser system

It has been previously shown that it is theoretically possible to build a solid-state laser that generates no internal heat. This is accomplished through a detailed balance of the stimulated and spontaneous emission. Such a device is called a radiation-balanced laser. Here, we analyze laser operatio...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2002-10, Vol.38 (10), p.1339-1348
Main Authors: Bowman, S.R., Jenking, N.W., O'Connor, S.R., Feldman, B.J.
Format: Article
Language:English
Subjects:
Construction
Cooling
Doped-insulator lasers and other solid state lasers
Efficiency, stability, gain, and other operational parameters
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser materials
Laser modes
Laser noise
Laser optical systems: design and operation
Laser stability
Laser theory
Laser transitions
Lasers
Mathematical models
Optical materials
Optics
Perturbation methods
Physics
Potassium gadolinium tungstate
Pump lasers
Quantum electronics
Solid lasers
Solid state lasers
Spontaneous emission
Stimulated emission
Thermal stresses
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Summary:It has been previously shown that it is theoretically possible to build a solid-state laser that generates no internal heat. This is accomplished through a detailed balance of the stimulated and spontaneous emission. Such a device is called a radiation-balanced laser. Here, we analyze laser operation when conditions deviate from perfect balance. Sensitivity and stability analyses are presented for perturbations in the field parameters and temperature. We show that the radiation balance is a stable equilibrium under both transient and steady-state perturbations. Limits are derived on the magnitude of allowable spatial perturbations, and techniques for spatial mode matching are discussed. Numerical simulations of 1-/spl mu/m laser operation of Yb-doped potassium gadolinium tungstate are provided as an example.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2002.802950