05119460 is referenced by 77 patents and cites 6 patents.

An active optical device comprises a glass, waveguiding structure disposed on a substantially planar principal surface of a substrate. The structure includes a silica-based, erbium-doped active core. The active core has an erbium-to-silicon atomic ratio of at least about 0.01, an absolute erbium concentration of at least about 1.4.times.10.sup.20 atoms per cubic centimeter, and a radiative lifetime of the erbium lasing level of at least about 7 milliseconds. Also disclosed is a method for forming an active optical device, including the step of depositing an erbium-doped active core by sputtering.

Title
Erbium-doped planar optical device
Application Number
7/691262
Publication Number
5119460
Application Date
April 25, 1991
Publication Date
June 2, 1992
Inventor
Yiu Huen Wong
Summit
NJ, US
Amy Wong
Whitestone
NJ, US
Joseph Shmulovich
Murray Hill
NJ, US
Allan J Bruce
Westfield
NJ, US
Agent
Eugen E Pacher
Martin I Finston
Assignee
AT&T Bell Laboratories
NJ, US
IPC
H01S 3/30
G02B 6/16
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