Abstract

A Ho3+-doped PbF2 mid-IR laser crystal was successfully grown using the vertical Bridgman method. An intense 2.8 μm emission in Ho:PbF2 crystal was observed for the first time. By analyzing the absorption and emission measurements of the Ho:PbF2 crystal with the Judd–Ofelt theory, the intensity parameters Ω2,4,6, exited state lifetimes, branching ratios, and emission cross-sections were calculated. It is found that the Ho:PbF2 crystal has high fluorescence branching ratio (20.99%), large emission cross section (1.44×1020cm2), long fluorescence lifetime (5.4 ms), and high quantum efficiency (88.4%) corresponding to the stimulated emission of Ho3+: I65I75 transition. The structure of Ho:PbF2 crystal was also analyzed by the Raman spectrum, and it was found that the Ho:PbF2 crystal possesses low phonon energy of 257cm1. We propose that the Ho:PbF2 crystal may be a promising material for 2.8 μm laser applications.

© 2014 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 (4)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (3)

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