Sensitivity and stability of a radiation-balanced laser system

IEEE Journal of Quantum Electronics - Tập 38 Số 10 - Trang 1339-1348 - 2002
S.R. Bowman1, N.W. Jenking1, S.R. O'Connor1, B.J. Feldman2
1Photonics Technology Branch, U.S. Naval Research Lab, Washington, DC, USA
2Science Applications International Corporation (SAIC), Arlington, VA, USA

Tóm tắt

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.

Từ khóa

#Laser stability #Pump lasers #Laser theory #Laser transitions #Solid lasers #Laser modes #Stimulated emission #Laser noise #Cooling #Thermal stresses

Tài liệu tham khảo

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