G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/125 (2006.01) G06K 1/12 (2006.01) H01S 5/0683 (2006.01) H01S 5/062 (2006.01) H01S 5/068 (2006.01)
Patent
CA 2048237
In an apparatus for supplying a current for driving a laser diode, an amount of current is supplied to the laser diode. During a read mode, a read peak current modified by a high frequency signal in addition to the amount of current is supplied to the laser diode, and during a write mode, a base read current in addition to the amount of current is supplied to the laser diode so that a light output of the laser diode is equal to a base read output. The read peak current is adjusted so that a mean value of the light output of the laser diode is equal to the base read output. An automatic control is performed upon the amount of current so that the light output of the laser diode is close to the base read output.
Minami Akira
Sasaki Masateru
Fujitsu Limited
Mcfadden Fincham
LandOfFree
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