Single pulse switchout system for a passively mode-locked Q-switched Nd:YAG laser
A new optical switchout device for a passively mode-locked Q-switched laser is presented. This device can switch out a single pulse with energy at a preset level. The stability of the switched out single-pulse energy is greater than the input pulse train. This is achieved by means of a high speed comparator and avalanche transitor chains. A single pulse of +- 13% energy stability is obtained from the pulse train of our Nd:YAG laser oscillator with a +- 25% fluctuation. The maximum repetition frequency of 2 kHz is sufficient not only for this kind of laser but also for other applications. The life of the avalanche transistors used here is more than one million shots. The possibility of further improvements in output stability is also discussed.
- Research Organization:
- Electrotechnical Laboratory, Umezono, Sakura-mura, Ibaraki-ken, Japan
- OSTI ID:
- 5885903
- Journal Information:
- Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 52:12; ISSN RSINA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
COMPARATOR CIRCUITS
DATA
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EXPERIMENTAL DATA
FERRITE GARNETS
FREQUENCY RANGE
INFORMATION
KHZ RANGE
LASERS
LIFETIME
MINERALS
MODE LOCKING
NEODYMIUM LASERS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PULSES
Q-SWITCHING
SEMICONDUCTOR DEVICES
SOLID STATE LASERS
STABILITY
SWITCHES
TRANSISTORS
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
YTTRIUM COMPOUNDS