Adjustable optical delay line

Details Adjustable optical delay line Adjustable optical delay line

1996-01-05

1997-12-30

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

25022712, 385 1, H04J 1408

Patent

active

057037086

ABSTRACT:
When merging optical pulse streams having a high bit rate, there is the problem that, for example given a bit rate of 40 Gbit/s, the pulses at the multiplexer output have 25 pulses temporal spacing and approximately 5 mm spatial spacing. Given a precision of 10% of the bit rate, the light waveguides must be matched with a precision of 0.5 mm, which previously required mechanical or inserted length-adjustable open beam optics and which leads to high outlay. In the optical delay line, by contrast, the temperature of a light waveguide is varied such that the desired optical length is set via the change in the refractive index of the optical fibers. The optical fibers are wound on coil bodies that have a through bore containing a heating element connected to a temperature control.

REFERENCES:
patent: 5111322 (1992-05-01), Bergano et al.
patent: 5131062 (1992-07-01), Eide et al.
patent: 5355423 (1994-10-01), Phillips

Affiliated with

Also associated with

Rating

Adjustable optical delay line does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable optical delay line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable optical delay line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-207842