Apparatus comprising raman-active optical fiber

Details Apparatus comprising raman-active optical fiber Apparatus comprising raman-active optical fiber

H - Electricity

01

S

345/12, 261/13

H01S 3/30 (2006.01) H04B 10/00 (2006.01) H04B 10/17 (2006.01) H04J 14/00 (2006.01)

Patent

CA 1277404

jm APPARATUS COMPRISING RAMAN-ACTIVE OPTICAL FIBER Abstract This invention pertains to apparatus that comprises Raman-active optical fiber adapted for amplification of electromagnetic radiation by means of stimulated Raman scattering. The Raman-active optical fiber has very large Raman cross section and comprises glass that has two major components, a glass-forming first component (GeO2, SiO2, AsO1.5, or combinations thereof) and a heavy metal oxide second component (PbO, Bio1.5, SbO1.5, TlO0.5, or combinations thereof), with the first and second major components making up at least 70 mol%, preferably at least 90 mol%, of the glass. The maximum relative Raman cross section .sigma.r of the inventive glass is at least 15, preferably greater than 20, where .sigma.r = .sigma.RA/.sigma.Sio2, and where .sigma.RA and .sigma.SiO2 0°K Raman cross sections of the inventive glass and of pure vitreous SiO2, respectively. Exemplarily, such apparatus can be an optical fiber communications systems, information processing systems that contain an optical fiber memory loop, or an optical fiber sensor. (FIG. 6)

535286

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