Small, high repetition-rate HF and DF lasers. Technical report
Measurements are presented of the multiline spectral output, output power as a function of pulse-repetition rate, and V-I (voltage-current) characteristics of small pulsed hydrogen fluoride (HF) and deuterium fluoride (DF) lasers that have been operated at repetition rates up to 1 kHz. Results indicate that observed reductions in output power at high repetition rates are due to an insufficient gas flow that (1) allows the ground state population to build up, (2) reduces population inversion between the first vibrational state and the ground state, and (3) introduces discharge instabilities that severely limit the pulse-rate capabilities. Average powers are reported to vary linearly with pulse-repetition rate up to 400 Hz, with typical pulse energies of 10 and 4 mJ for small HF and DF lasers respectively with discharge lengths of only 10 cm.
- Research Organization:
- Harry Diamond Labs., Washington, DC (USA)
- OSTI ID:
- 7289517
- Report Number(s):
- AD-A-040993; HDL-TR-1813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420300* -- Engineering-- Lasers-- (-1989)
CURRENTS
DEUTERIUM
ELECTRIC CURRENTS
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INORGANIC ACIDS
ISOTOPES
LASERS
LIGHT NUCLEI
NUCLEI
ODD-ODD NUCLEI
POPULATION INVERSION
POWER
PULSES
STABLE ISOTOPES
VIBRATIONAL STATES