Lasers and laser amplifiers

Amplification of phase-modulated ultrashort pulses of infrared radiation in a CO₂ amplifier

V. D. Taranukhin


Abstract: An investigation was made of the influence of phase modulation of picosecond pulses on their amplification in a CO₂ amplifier. Linear frequency modulation of the input pulses was not maintained during amplification. This casts doubt on the possibility of compressing such amplified pulses. However, amplification of chirped picosecond pulses in a CO₂ amplifier makes it possible to generate a train of ultrashort pulses with a high ( ~ 10¹² Hz) and controlled repetition frequency.

UDC: 621.375.8.038.823

PACS: 42.55.Lt, 42.65.Re, 42.60.Fc, 42.60.Jf, 33.15.Mt, 33.15.Kr

Received: 17.06.1987

 English version: Soviet Journal of Quantum Electronics, 1988, 18:9, 1081–1084

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