Coherent light generators – Particular component circuitry – Optical pumping
Patent
1997-06-18
2000-01-25
Davie, James W.
Coherent light generators
Particular component circuitry
Optical pumping
H01S 300
Patent
active
060185384
ABSTRACT:
The length of the tail which results in an optical output from a laser diode after the laser diode is no longer being driven is reduced or eliminated by a laser diode driver with a tail eliminator. More specifically, the laser diode driver includes an energy drainage path that is activated when packet communication is over. In one embodiment of invention, the terminals of the laser diode are short-circuited to provide the energy drainage path. In another embodiment of the invention, the laser diode is reverse biased, so that charges stored in the laser diode are combined with charges which are provided thereto. Advantageously, the tail emission is substantially eliminated.
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Davie James W.
Lucent Technologies - Inc.
Rosenthal Eugene J.
Wise Robert E.
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