Quantum nondemolition measurements in optical fibers

Ofer Shapiro; Moshe Tur

doi:10.1117/12.281416

22 September 1997 Quantum nondemolition measurements in optical fibers

Ofer Shapiro, Moshe Tur

Author Affiliations +

Proceedings Volume 3110, 10th Meeting on Optical Engineering in Israel; (1997) https://doi.org/10.1117/12.281416
Event: 10th Meeting on Optical Engineering in Israel, 1997, Jerusalem, Israel

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.

Citation Download Citation

Ofer Shapiro and Moshe Tur "Quantum nondemolition measurements in optical fibers", Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); https://doi.org/10.1117/12.281416

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