摘要 |
<p>It has been discovered that co-doping of Er-doped Si with a light element such as C, N or F can result in substantially increased Er luminescence. A further increase in luminescence can result if, in addition, oxygen is present in the Si. Apparatus or systems according to the invention comprise a device (e.g., laser, optical amplifier, LED) that comprises a planar waveguide whose core region contains, in addition to at least 90 atomic % Si or SiGe alloy, Er, Pr and/or Nd, and further contains C, N and/or F, and preferably also contains oxygen. Currently preferred apparatus or systems according to the invention comprise means for electrically pumping the waveguide means. <IMAGE></p> |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
BENTON, JANET LEE;JACOBSON, DALE CONRAD;KIMERLING, LIONEL COOPER;MICHEL, JURGEN;POATE, JOHN MILO |