Coherent light generators – Particular component circuitry – Controlling current or voltage to laser
Reexamination Certificate
2007-05-29
2007-05-29
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular component circuitry
Controlling current or voltage to laser
C372S029015
Reexamination Certificate
active
10838821
ABSTRACT:
The invention relates to an electrical circuit for a directly modulated semiconductor radiation source having a semiconductor radiation source, to which a modulated current is supplied in a manner dependent on a digital data signal, the falling signal edge of said current exhibiting peaking. According to the invention, provision is made of circuit means which are connected to an electrical contact point of the circuit and which reduce peaking of the falling signal edge when a predetermined value of the forward voltage across the semiconductor radiation source is undershot. This allows higher data rates to be achieved.
REFERENCES:
patent: 6272160 (2001-08-01), Stronczer
patent: 6285692 (2001-09-01), Okayasu
patent: 6597209 (2003-07-01), Iguchi et al.
patent: 6947456 (2005-09-01), Chin et al.
patent: 2001/0028665 (2001-10-01), Stronczer
patent: 2002/0105982 (2002-08-01), Chin et al.
patent: 100 65 838 (2002-07-01), None
patent: 102 18 939 (2003-06-01), None
patent: 0 886 350 (1998-12-01), None
patent: 2001320122 (2001-11-01), None
International Search Report, Patent No. 04090160.5, 3 pgs.
Eschweiler & Associates LLC
Golub Marcia A.
Harvey Minsun
Infineon - Technologies AG
LandOfFree
Electrical circuit for a directly modulated semiconductor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical circuit for a directly modulated semiconductor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical circuit for a directly modulated semiconductor... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3759983