Amplifier for optical fiber telecommunication lines and optical

Details Amplifier for optical fiber telecommunication lines and optical Amplifier for optical fiber telecommunication lines and optical

1990-10-22

1992-06-02

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

372 6, H01S 330, G02B 626

Patent

active

051192292

ABSTRACT:
An optical amplifier (3) in accordance with the invention consists of the assembly of a length of active-core optical fiber (8), single-mode to both pumping and signal optical radiations, and a dichroic coupler (6) which includes two optical fiber lengths (9, 10), both single-mode to pumping and signal optical radiations, coupled to each other over one portion (11) by fusion of the respective claddings and substantial setting in common of the respective cores in the fused portion (11).

REFERENCES:
patent: 4556279 (1985-12-01), Shaw et al.
patent: 4674830 (1987-06-01), Shaw et al.
patent: 4712075 (1987-12-01), Snitzer
patent: 4834481 (1989-05-01), Lawson et al.
patent: 4859016 (1989-08-01), Shaw et al.
patent: 4867518 (1989-09-01), Sammetz et al.
patent: 4906949 (1990-03-01), Parballe et al.
patent: 4938556 (1990-07-01), Digonnet et al.
patent: 4963832 (1990-10-01), Desurvire et al.
Morkel et al.; "An All Fibre, Diode . . . Delay line"; Jun. 3, 1988, Ibe. Colloq., Digest 90, pp. 12/1-4; Abst only.

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