Optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range

Details Optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range Optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range

1992-04-17

1993-02-09

Healy, Brian

Optical waveguides

Having particular optical characteristic modifying chemical...

385131, 385132, 372 7, 372 40, 372 70, 359343, 359345, G02B 600, H01J 330

Patent

active

051858479

ABSTRACT:
An optical amplifier in the 1.26 .mu.m to 1.34 .mu.m spectrum range, comprising a solid substrate of fluoride glass doped with praseodymium in which a three-dimensional monomode waveguide is formed having an index difference .DELTA.n relative to the index of the fluoride glass lying in the range 4.times.10.sup.-3 and 8.times.10.sup.-2, said waveguide being associated by coupling means to an optical pump having a wavelength equal to 1.02 .mu.m .+-.0.1 .mu.m.

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patent: 5107538 (1992-04-01), Benton et al.
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patent: 5131069 (1992-07-01), Hall et al.
patent: 5136420 (1992-08-01), Inagaki et al.
Electronics Letters, vol. 27, No. 2, Jan. 17, 1991, Enage GB, pp. 189-191; J. Y. Allain et al.: "Tunable cw lasing around 610, 695, 715, 885 and 910 in praseodymium-doped fluorozirconate fibre.".
SPIE, vol. 1128, 1989, pp. 142-144; S. Iraj Najafi et al.: "Ion-exchanged rare-earth doped waveguides.".

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