Coherent light generators – Particular component circuitry – Optical pumping
Patent
1993-11-09
1996-04-30
Bovernick, Rodney B.
Coherent light generators
Particular component circuitry
Optical pumping
372 26, 369116, H01S 310, H01S 300, G11B 700
Patent
active
055131972
ABSTRACT:
A first current source applies a first current to an anode of a semiconductor laser, and a second current source either draws a second current from the anode of the semiconductor layer or supplies the second current to the anode of the semiconductor layer. A switched current source connected to the anode of the semiconductor layer selectively draws a third current from the anode of the semiconductor laser. The third current has a value corresponding to a difference between a peak value and a minimum value of a pulse current flow in the semiconductor laser during a recording operation. By drawing the third current from the anode of the semiconductor laser according to recording data, a high speed and high power recording operation can be effected.
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Bovernick Rodney B.
Matsushita Electric - Industrial Co., Ltd.
McNutt Robert
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