Short-pulse light-source device, laser driving method,...

Details Short-pulse light-source device, laser driving method,... Short-pulse light-source device, laser driving method,...

2009-10-01

2011-12-06

Simpson, Lixi C (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S047500, C369S116000

Reexamination Certificate

active

08072871

ABSTRACT:
The present invention realizes the emission of a high-output short-pulse beam and a reduction in power consumption. A laser control unit (2) of a short-pulse light-source device (1) raises a gate pulse (PG) of a gate signal (SG) supplied to a power supply circuit (5) in such a manner that the gate pulse (PG) rises only for the duration of an extremely short pulse width (T) to include the rise time of a generated pulse (PL) of a pulse signal (SL) supplied to a driving circuit (6). In this way, necessary power can be supplied at the rise timing of the generated pulse (PL), and the power consumption (Pa) can be greatly reduced from the standard power consumption (Pb).

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