Experimental investigation of a method for controlling the shape of radiation pulses from a CO/sub 2/ amplifier

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1979v009n03ABEH008772· OSTI ID:5991553

Maksimov, V V; Orishich, A M; Pakhomov, L M; Ponomarenko, A G

A method for controlling the shape and duration of a radiation pulse, formed in a CO/sub 2/ amplifying system with fast excitation of the active medium, was investigated for the first time. The method was based on the difference between the times of release of energy from the vibrational states of CO/sub 2/ and N/sub 2/. Control over the pulse shape was achieved by varying the delay time tau/sub d/ between the start of excitation of the optically active medium of the amplifier and the time at which the master oscillator radiation was injected. The duration of the output signal was varied over the range 0.06-2 ..mu..sec with a practically constant amplification efficiency of approx.10%. The maximum compression of a pulse, under the conditions of the present experiment, was limited to a time of approx.60 nsec due to the finite rate of rise of the leading edge of the master oscillator pulse and due to the processes of energy relaxation from the vibrational and rotational states of the CO/sub 2/ molecules in the optically active medium.

• Research Organization: Institute of Theoretical and Applied Mechanics, USSR Siberian Branch of the Academy of Sciences, Novosibirsk
• OSTI ID: 5991553
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 9:3; ISSN SJQEA
• Country of Publication: United States
• Language: English

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