Experimental study of a supersonic high repetition rate H 2+F2 pumped HF laser

K. Waichman; D. Chuchem; J. Stricker

doi:10.1063/1.347303

Experimental study of a supersonic high repetition rate H ₂+F₂ pumped HF laser

K. Waichman, D. Chuchem, J. Stricker

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Abstract

Experimental study of a supersonic pulsed, H₂+F₂ pumped HF laser is presented. The reactants are premixed and then expanded through a supersonic nozzle into the laser cavity, whereupon the reaction is initiated by an electrical discharge at a high repetition rate. The small-signal gain of some of the laser lines was measured as a function of the distance downstream from the initiation point and as a function of the reactants concentration. The spectral content of a laser pulse was analyzed and the induction times between the initiation and the onset of lasing on different laser lines were measured. The output power was measured as a function of the discharge voltage, the discharge pulse frequency and the reactants concentration. The results are compared with the lasing characteristics of a cold reaction, H₂+SF₆ -pumped laser.

Original language	English
Pages (from-to)	1192-1200
Number of pages	9
Journal	Journal of Applied Physics
Volume	69
Issue number	3
DOIs	https://doi.org/10.1063/1.347303
State	Published - 1 Dec 1991
Externally published	Yes

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General Physics and Astronomy

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title = "Experimental study of a supersonic high repetition rate H 2+F2 pumped HF laser",

abstract = "Experimental study of a supersonic pulsed, H2+F2 pumped HF laser is presented. The reactants are premixed and then expanded through a supersonic nozzle into the laser cavity, whereupon the reaction is initiated by an electrical discharge at a high repetition rate. The small-signal gain of some of the laser lines was measured as a function of the distance downstream from the initiation point and as a function of the reactants concentration. The spectral content of a laser pulse was analyzed and the induction times between the initiation and the onset of lasing on different laser lines were measured. The output power was measured as a function of the discharge voltage, the discharge pulse frequency and the reactants concentration. The results are compared with the lasing characteristics of a cold reaction, H2+SF6 -pumped laser.",

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N2 - Experimental study of a supersonic pulsed, H2+F2 pumped HF laser is presented. The reactants are premixed and then expanded through a supersonic nozzle into the laser cavity, whereupon the reaction is initiated by an electrical discharge at a high repetition rate. The small-signal gain of some of the laser lines was measured as a function of the distance downstream from the initiation point and as a function of the reactants concentration. The spectral content of a laser pulse was analyzed and the induction times between the initiation and the onset of lasing on different laser lines were measured. The output power was measured as a function of the discharge voltage, the discharge pulse frequency and the reactants concentration. The results are compared with the lasing characteristics of a cold reaction, H2+SF6 -pumped laser.

AB - Experimental study of a supersonic pulsed, H2+F2 pumped HF laser is presented. The reactants are premixed and then expanded through a supersonic nozzle into the laser cavity, whereupon the reaction is initiated by an electrical discharge at a high repetition rate. The small-signal gain of some of the laser lines was measured as a function of the distance downstream from the initiation point and as a function of the reactants concentration. The spectral content of a laser pulse was analyzed and the induction times between the initiation and the onset of lasing on different laser lines were measured. The output power was measured as a function of the discharge voltage, the discharge pulse frequency and the reactants concentration. The results are compared with the lasing characteristics of a cold reaction, H2+SF6 -pumped laser.

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Experimental study of a supersonic high repetition rate H ₂+F₂ pumped HF laser

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