Optical waveguides – With optical coupler – Plural
Patent
1995-10-23
1997-12-02
Lee, John D.
Optical waveguides
With optical coupler
Plural
359341, 359342, 372 6, 372 39, 385142, G02B 628, H01S 314
Patent
active
056945000
ABSTRACT:
Dysprosium-doped metal chloride materials offer laser properties advantageous for use as optical amplifiers in the 1.3 .mu.m telecommunications fiber optic network. The upper laser level is characterized by a millisecond lifetime, the host material possesses a moderately low refractive index, and the gain peak occurs near 1.31 .mu.m. Related halide materials, including bromides and iodides, are also useful. The Dy.sup.3+ -doped metal chlorides can be pumped with laser diodes and yield 1.3 .mu.m signal gain levels significantly beyond those currently available.
REFERENCES:
patent: 5179603 (1993-01-01), Hall et al.
patent: 5321708 (1994-06-01), Tohmon et al.
patent: 5379149 (1995-01-01), Snitzer et al.
patent: 5416864 (1995-05-01), Cassidy et al.
Tanabe et al, "Optical Properties of Dysprosium-Doped Low-Phonon-Energy Glasses for a Potential 1.3 .mu.m Optical Amplifier", J. Am. Ceram. Soc., vol. 78, No. 11, Nov., 1995, pp. 2917-2922.
Beach Raymond J.
Krupke William F.
Page Ralph H.
Payne Stephen A.
Schaffers Kathleen I.
Lee John D.
Sartorio Henry P.
The Regents of the University of California
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