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Title: Optical amplification at the 1. 31 wavelength

An optical amplifier operating at the 1.31 [mu]m wavelength for use in such applications as telecommunications, cable television, and computer systems is described. An optical fiber or other waveguide device is doped with both Tm[sup 3+] and Pr[sup 3+] ions. When pumped by a diode laser operating at a wavelength of 785 nm, energy is transferred from the Tm[sup 3+] ions to the Pr[sup 3+] ions, causing the Pr[sup 3+] ions to amplify at a wavelength of 1.31. 1 figure.
Inventors:
Issue Date:
OSTI Identifier:
5151862
Assignee:
Dept. of Energy, Washington, DC () PTO; EDB-94-065026
Patent Number(s):
US 5287217; A
Application Number:
PPN: US 8-039676
Contract Number:
W-7405-ENG-36
Resource Relation:
Patent File Date: 30 Mar 1993
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; SOLID STATE LASERS; DESIGN; AMPLIFICATION; DOPED MATERIALS; ENERGY TRANSFER; OPTICAL PUMPING; PRASEODYMIUM IONS; SEMICONDUCTOR LASERS; THULIUM IONS; CHARGED PARTICLES; IONS; LASERS; MATERIALS; PUMPING; SEMICONDUCTOR DEVICES; 426002* - Engineering- Lasers & Masers- (1990-)