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Influence of the active zone diameter, on the UV-ion Ne-CuBr laser performance

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4 Author(s)
Vuchkov, N.K. ; Inst. of Solid State Phys., Bulgarian Acad. of Sci., Sofia, Bulgaria ; Temelkov, K.A. ; Zahariev, P.V. ; Sabotinov, N.V.

An active-zone-diameter scanning of an ultraviolet (UV) Cu+ laser excited in a nanosecond, pulsed longitudinal Ne-CuBr discharge with an excitation pulse repetition frequency of 19.5-25 kHz is carried out. The discharge conditions for achieving a maximum average output power on the UV lines-248.6, 252.9, 260.0, and 270.3 nm are found for each active zone diameter. A record average output power of 1.3 W is obtained for multiline operation. The specific average output power is 57 mW/cm3 at an active volume of 23 cm3. The highest peak pulse power and average laser power on the 248.6-nm laser line for the UV Cu+ lasers are also measured-3.25 and 0.85 W, respectively. A simplified kinetic model, which describes the discharge afterglow processes, is made

Published in:

Quantum Electronics, IEEE Journal of  (Volume:37 ,  Issue: 12 )