Abstract

An intrinsically stable type I optical parametric oscillator was built with a periodically poled ${\mathrm{KTiOPO}}_4$ crystal to generate a stable, bright, cw, broadband phase-squeezed beam. A $3.2\mathrm{dB}$ sensitivity enhancement of optical interferometry was demonstrated on weak electro-optic modulation signals within a $20\mathrm{MHz}$ squeezing bandwidth. This also realized a channel capacity increase beyond that of coherent optical communication.

© 2007 Optical Society of America

Photon subtracted squeezed states generated with periodically poled KTiOPO₄

Kentaro Wakui, Hiroki Takahashi, Akira Furusawa, and Masahide Sasaki
Opt. Express 15(6) 3568-3574 (2007)

Generation of a stable low-frequency squeezed vacuum field with periodically poled KTiOPO₄ at 1064 nm

Keisuke Goda, Eugeniy E. Mikhailov, Osamu Miyakawa, Shailendhar Saraf, Stephen Vass, Alan Weinstein, and Nergis Mavalvala
Opt. Lett. 33(2) 92-94 (2008)

Squeezing at 946nm with periodically poled KTiOPO₄

Takao Aoki, Go Takahashi, and Akira Furusawa
Opt. Express 14(15) 6930-6935 (2006)

Broadband amplitude squeezing in a periodically poled KTiOPO₄ waveguide

Matthew Pysher, Russell Bloomer, Christopher M. Kaleva, Tony D. Roberts, Philip Battle, and Olivier Pfister
Opt. Lett. 34(3) 256-258 (2009)

Generation of polarization squeezing with periodically poled KTP at 1064 nm

Mikael Lassen, Metin Sabuncu, Preben Buchhave, and Ulrik L. Andersen
Opt. Express 15(8) 5077-5082 (2007)