Low cost flexible automated optical power management

Details Low cost flexible automated optical power management Low cost flexible automated optical power management

2006-06-27

2006-06-27

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

Reexamination Certificate

active

07068423

ABSTRACT:
Circuits and systems for use in monitoring and adjusting an optical signal strength of an optical data transmission system. A closed feedback loop which automatically controls an optical device's output uses an analog operational amplifier based circuit instead of a conventional microprocessor that uses complex calculations. The parameters of the operational amplifier circuit are monitored and controlled by a microcontroller to provide flexible operational settings. The analog circuit containing discrete analog components is used as a power meter for measuring an optical power signal strength of an optical signal. The optical signal is tapped by an optical coupler and the signal is received by a photodetector. The output of the photodetector is received by the analog circuit which produces an intermediate signal based on the level of optical power in the optical signal. The intermediate signal is used to control an optical device. Since the operating parameters of some of the analog components in the analog circuit may be controlled by the microcontroller, the analog circuit may therefore be calibrated or adjusted by the microcontroller. This allows one to take advantage of the speed of analog component based circuits while keeping the flexibility and communications capability of a digital circuit such as a microcontroller.

REFERENCES:
patent: 5737118 (1998-04-01), Sugaya et al.
patent: 5822112 (1998-10-01), Itou et al.
patent: 6198571 (2001-03-01), Yang
patent: 6246514 (2001-06-01), Bonnedal et al.
patent: 6377394 (2002-04-01), Drake et al.
patent: 6498677 (2002-12-01), Sun et al.
patent: 6522460 (2003-02-01), Bonnedal et al.
patent: 6580553 (2003-06-01), Kim et al.
patent: 6631027 (2003-10-01), Lelic et al.
patent: 6678088 (2004-01-01), Stummer et al.
patent: 6687045 (2004-02-01), Lelic
patent: 6690506 (2004-02-01), Zahnley et al.
patent: 6697190 (2004-02-01), Yang
patent: 6747791 (2004-06-01), Yanget al.
patent: 2003/0214702 (2003-11-01), Yang
patent: 2003/0231379 (2003-12-01), Komaki et al.
patent: 2004/0100688 (2004-05-01), Iizuka et al.

Affiliated with

Also associated with

Rating

Low cost flexible automated optical power management does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low cost flexible automated optical power management, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low cost flexible automated optical power management will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3654789