Enhanced optical communication and broadband sub-shot-noise interferometry with a stable free-running periodically-poled-KTiOPO4 squeezer

Date
Authors
Xie, Daruo
Pysher, Matthew
Jing, Jietai
Pfister, Olivier
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
An intrinsically stable type-I optical parametric oscillator was built with a periodically poled KTiOPO4 (PPKTP) crystal to generate a stable bright, continuous-wave, broadband phase-squeezed beam. A 3.2 dB sensitivity enhancement of optical interferometry was demonstrated on weak electrooptic modulation signals within a 20 MHz squeezing bandwidth. This also realized a channel capacity increase beyond that of coherent optical communication.
Comment: 9 pages, 4 figs, submitted for publication
Keywords
Quantum Physics
Citation
Collections