05200029 is referenced by 47 patents and cites 8 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
Method of making a planar optical amplifier
Application Number
691262
Publication Number
5200029
Application Date
December 4, 1991
Publication Date
April 6, 1993
Inventor
Yiu Huen Wong
Summit
NJ, US
Amy Wong
Whitestone
NY, US
Joseph Shmulovich
Murray Hill
NJ, US
Allan J Bruce
Westfield
NJ, US
Agent
E E Pacher
M I Finston
Assignee
AT&T Bell Laboratories
NJ, US
IPC
C03C 15/00
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