Resonant pumping ofpraseodymium-doped crystals andfibres by semiconductor lasers

David S. Knowles

N. Ter-Gabrielyan, T. Sanamyan, Mark A. DUBINSKII

This study presents a resonantly-pumped laser operation based on the inter-Stark transitions between the3F3and3H4multiplets of Pr3+ion. In this investigation, resonantly-pumped (at ~1547 nm), low quantum defect, laser action is achieved at 1676.5 nm from a Pr3+-doped RbPb2Cl5(RPC), low-phonon single crystal, which has recently been reported to lase at 2.5 mum. Hence, this type of laser holds promise for attaining a more efficient, resonantly-pumped, ultra-low quantum defect, eye-safe laser based on this gain medium. Furthermore, much lower nonradiative losses are expected, due to a very low phonon energy found in the Pr3+-doped material.

H. H. Theissing, P. J. Caplan, F. A. Dieter +1 more

Nguyen Ba An, Le Thi Cat Tuong

A resonant monochromatic pump laser generates coherent excitons in an n-type-doped semiconductor. Both exciton–exciton and exciton–donor interactions come into play. The former interaction can give...

Denis V. Seletskiy, Seth D. Melgaard, Mansoor Sheik‐Bahae +3 more

We demonstrate cooling of a 2 micron thick GaAs/InGaP double - heterostructure to 165 K by means of an optical refrigerator. Cooler is comprised of Yb3+-doped YLF crystal, pumped by 9 Watt near E4-E5 Stark manifold transition.

Alexander A. Kaminskii