Abstract

Broadband squeezed states of the electromagnetic field are generated by degenerate parametric downconversion with pulse-light excitation in a Ba2NaNb5O15 crystal, in which noncritical type I phase matching is attained. Noise reduction below the level of the vacuum fluctuation is clearly observed over a detection bandwidth from dc to approximately 70 MHz. The minimum noise level obtained in the quiet quadrature is 1.1 dB below the shot-noise level. The scheme used in the present experiment is simple and promising for further improvement of squeezing. The relation between squeezing and parametric fluorescence is discussed quantitatively for the first time to the authors' knowledge.

© 1990 Optical Society of America

Full Article  |  PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription