Measurement system for wide dynamic range optical power meter

Details Measurement system for wide dynamic range optical power meter Measurement system for wide dynamic range optical power meter

2007-01-23

2007-01-23

Hellner, Mark (Department: 3663)

Optical communications

Receiver

C250S2140LS

Reexamination Certificate

active

10378000

ABSTRACT:
A measurement system for wide dynamic range operation in optical power measurement applications is disclosed. The system provides amplification over a wide dynamic range without glitch, signal loss or transient effect during range switch. This is achieved by combining first and second multi-gain photodiode amplifiers (10/1,10/2), with their input ports connected in common to receive the input signal from a photodiode, and by switching their gain settings to get continuous readings of a photodiode signal. More specifically, the gain setting of the first amplifier is changed only when the signal from the other amplifier is being output, and vice versa. Such an amplification system ensures a smooth transition within a wide dynamic range while monitoring various signal levels, e.g., monitoring processes with substantial variations of optical power from very high levels to very low levels.

REFERENCES:
patent: 5287340 (1994-02-01), Chapman et al.
patent: 5900960 (1999-05-01), Reime
patent: 6707025 (2004-03-01), Azary et al.
patent: 6864724 (2005-03-01), Kim et al.
Cooper, William David, Electronic Instrumentation and Measurement Techniques, 1978, Prentice-Hall, Inc., Englewood Cliffs, New Jersey.
Graeme, J.G., Photodiode Amplifiers, 1996, McGraw-Hill, New York.

Affiliated with

Also associated with

Rating

Measurement system for wide dynamic range optical power meter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Measurement system for wide dynamic range optical power meter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement system for wide dynamic range optical power meter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3755462