Light emitting devices with phosphosilicate glass

Details Light emitting devices with phosphosilicate glass Light emitting devices with phosphosilicate glass

H - Electricity

01

S

H01S 3/17 (2006.01) G02B 6/02 (2006.01) H01S 3/067 (2006.01)

Patent

CA 2693854

A light-emitting device is provided which includes a gain medium having an optically-active phosphosilicate glass, wherein the phosphosilicate glass includes at least one active ion dopant and from about 1 to 30 mol% of phosphorus oxide. The phosphorous oxide may be present in an effective amount for reducing any photodarkening effect and increasing the saturation energy of the system. The active ion dopant may be a rare earth dopant. The light- emitting device may include an optical waveguide, the optical waveguide including the gain medium. The optical waveguide may have a core and at least one cladding, and the gain medium having the phosphosilicate glass may be found in the core and/or in one of the cladding.

L'invention concerne un dispositif émettant de la lumière qui comprend un milieu de gain ayant un verre de phosphosilicate optiquement actif, le verre de phosphosilicate comprenant au moins un dopant ionique actif et d'environ 1 à 30 % molaire d'oxyde de phosphore. L'oxyde de phosphore peut être présent en une quantité efficace pour réduire tout effet de photonoircissement et augmenter l'énergie de saturation du système. Le dopant ionique actif peut être un dopant des terres rares. Le dispositif émettant de la lumière peut comprendre un guide d'onde optique, le guide d'onde optique incluant le milieu de gain. Le guide d'onde optique peut comprendre une âme et au moins une gaine, et le milieu de gain ayant le verre de phosphosilicate peut se trouver dans l'âme et/ou dans l'une des gaines.

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