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Proceedings Paper

Quantum nondemolition measurements in optical fibers
Author(s): Ofer Shapiro; Moshe Tur
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Paper Abstract

Quantum non-demolition (QND) measurements are of great interest in recent years as a method to increase the information capacity of communication systems. Common implementations of QND measurements in optical fiber are based on the Kerr effect: a probe beam acquires phase modulation which mimics the amplitude modulation of a signal beam. This phase is typically small and needs to be measured at high frequencies for practical fiber-optic communication systems. Here we present a self reflexive interferometer scheme adequate for this kind of measurements and describe its performance. Using this system we achieved fairly open eye-diagrams at 140 Mbit/sec.

Paper Details

Date Published: 22 September 1997
PDF: 8 pages
Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); doi: 10.1117/12.281416
Show Author Affiliations
Ofer Shapiro, Tel-Aviv Univ. (Israel)
Moshe Tur, Tel-Aviv Univ. (Israel)


Published in SPIE Proceedings Vol. 3110:
10th Meeting on Optical Engineering in Israel

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