The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 26, 1995

Filed:

Aug. 18, 1993
Applicant:
Inventors:

Jun Ohya, Osaka, JP;

Toshihiro Fujita, Minoo, JP;

Hisanao Sato, Ibaragi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359161 ; 359160 ; 359341 ;
Abstract

An analog transmission system for transmitting a multi-channel analog signal including plural carrier signals having different frequencies, comprises: a laser unit responsive to the multi-channel analog signal for emitting laser light signal intensity-modulated by the multi-channel analog signal, the laser unit having an oscillation wavelength W1; an optical fiber amplifier for amplifying the laser light signal with a peak gain at a wavelength W2; an optical fiber for transmitting the amplified laser light; and an optical receiver for receiving the transmitted laser light and for converting the received laser light into an electric signal as an output. In this system, a total distortion characteristic of the laser unit is compensated by distortions developed in the optical fiber amplifier.


Find Patent Forward Citations

Loading…