| 摘要 |
PROBLEM TO BE SOLVED: To easily prevent double pulses and the damage to an optical part by fire the occurrence of which is worried by temporally vibrating a quantity of outcoupling by the influence of an photoelastic effect in the case of Q switch operation in an E/O:Q switch laser adopting Pockels cell (elctro-optical device) having the photoelastic effect. SOLUTION: The applying voltage 1 of Pockels cell (electro-optical device) is operated in Q-switch mode to oscillate a pulse before the occurrence of the temporary vibration of the quantity of outcoupling. Just after this, the applying voltage 1 of the electro-optical device is switched to a level before operation in Q-switch again to avoid the influence of the temporary vibration of the quantity of outcoupling. COPYRIGHT: (C)2005,JPO&NCIPI
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