Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1991-12-04
1993-04-06
Dang, Thi
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156663, 65 31, C03C 1500
Patent
active
052000290
ABSTRACT:
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.
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T. Kitagawa et al., "Guided-Wave Laser Based on Erbium-Doped Silica Planar Lightwave Circuit," Electronics Letters, vol. 27, No. 4, (334-335) Feb. 14, 1991.
Bruce Allan J.
Shmulovich Joseph
Wong Amy
Wong Yiu-Huen
AT&T Bell Laboratories
Dang Thi
Finston M. I.
Pacher E. E.
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