Coherent light generators – Particular component circuitry – For driving or controlling laser
Reexamination Certificate
2005-02-01
2005-02-01
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular component circuitry
For driving or controlling laser
C372S038010
Reexamination Certificate
active
06850546
ABSTRACT:
A driver circuit has a laser diode coupled in series between a supply voltage and a driving transistor collector electrode. The diode and transistor respectively have low input and high output impedances. Resonances are caused by the impedance mismatch and reactive components of the diode and transistor impedances. Feedback between the laser diode input and the transistor control electrode minimizes the effects of the resonances.
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Publication No. XP-002184235, “Frequenzgang-Korrektur” pp. 115-125.
Patent Abstract of Japan Publication No. 02090709.
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Agilent Technologie,s Inc.
Harvey Minsun Oh
Nguyen Phillip
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