Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-03-11
1999-07-20
Bacares, Rafael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359177, 359341, H04B 1008
Patent
active
059263040
ABSTRACT:
An optical fiber amp repeater, provided on an optical transmission channel in an optical system, having an excitation light output section for supplying an excitation light for amplifying a received optical signal, and a main signal light amplifier section for supplying the optical signal which is amplified while going through the rare earth dope fiber after combining the received optical signal with the excitation light supplied from the excitation light output section, the excitation light output section including an excitation light source for transmitting the excitation light and an excitation light source driving circuit for driving the excitation light source, the excitation light source driving circuit controlling the excitation light source according to a given data and modulating the excitation light by high frequency wave, thereby to create an auxiliary signal containing the given data.
REFERENCES:
patent: 5383046 (1995-01-01), Tomofugi et al.
patent: 5440418 (1995-08-01), Ishimura et al.
patent: 5535037 (1996-07-01), Yoneyama
patent: 5625481 (1997-04-01), Tamura et al.
patent: 5703711 (1997-12-01), Hamada
Bacares Rafael
NEC Corporation
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