Group delay measurement in single-mode fibers with true picosecond resolution using double optical modulation

Highly accurate group delay measurements in long single-mode fibers were achieved over the full 1200-1600 nm spectral range by measuring phase shifts of a modulated lightwave. The high modulation frequency is shifted down to the kilohertz range using a second optical modulation at the fiber output end, so that low-frequency, ultrasensitive detection and phase measurement can be performed with high-frequency resolution conserved. This results in extremely reliable measurements with a <1-ps resolution using a fully remote light source such as an LED or even a halogen lamp.


Published in:
Journal of Lightwave Technology, 6, 10, 1470-1475
Year:
1988
Keywords:
Note:
Univ of Geneva, Geneva, Switz Compilation and indexing terms, Copyright 2008 Elsevier Inc. 89034201031 0733-8724 DOUBLE OPTICAL MODULATION SINGLE-MODE FIBERS GROUP DELAY MEASUREMENT PHASE MEASUREMENT
Laboratories:




 Record created 2008-09-29, last modified 2018-12-03

n/a:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)