Analytical model for injection-controlled excimer laser amplifiers

Journal Article · Wed Nov 30 23:00:00 EST 1988 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/3.14377· OSTI ID:6503639

Hamada, N; Sauerbrey, R; Tittel, F K ^[1]

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1. Dept. of Electrical and Computer Engineering, Rice Univ., Houston, TX (US)

A semi-empirical model of a pulsed, injection-controlled laser is investigated analytically and is applied primarily to extensive experimental results that have been obtained for the XeF (C ..-->.. A) excimer laser. The gain medium inside an unstable cavity is represented by a folded pulsed amplifier which is seeded by a narrow-band input signal. A set of coupled rate equations for the population densities of the upper laser states, the wide-band absorbers, and the photon flux was numerically integrated. Measured gain and absorption of the amplifier were used as input data to evaluate the model. Excellent agreement between calculated and experimentally observed peak intensity and various other pulse characteristics such as pulse shape and laser pulse delay time was obtained. This model also predicts the experimentally determined injection-control threshold for KrF excimer lasers successfully, and should be applicable to numerous other injection seeded lasers.

• OSTI ID: 6503639
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 24:12; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
ANALYTICAL SOLUTION
COMPARATIVE EVALUATIONS
DATA
EQUATIONS
EXCIMER LASERS
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
GAIN
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
KRYPTON FLUORIDE LASERS
LASER CAVITIES
LASERS
MATHEMATICAL MODELS
NUMERICAL DATA
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RARE GAS COMPOUNDS
XENON COMPOUNDS
XENON FLUORIDES