| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser oscillation apparatus that simplify a control circuit to variably control a Q switch pulse width with low cost, and to provide a method of controlling the same. SOLUTION: The laser oscillation apparatus includes a laser oscillator head 11 having an internal AOQ-SW element 14 and an excitation LD 13, a Q switch pulse width setting circuit 17, an LD current control circuit 18, an LD driver 19, an RF amplitude control circuit 20, and an RF driver 21. The LD current control circuit 18 and the LD driver 19 controls a current applied to excitation LD 13 such that the current becomes not more than a laser oscillation threshold in synchronism with timing when an optical resonator of the laser oscillator head 11 oscillates one-time or plural-time Q switch pulse. COPYRIGHT: (C)2009,JPO&INPIT
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