Reduction of intermodulation

DETAILED DESCRIPTION What is claimed is: 1.
A low distortion opto-electronic light source for use with a signal source generating an A.
C.
signal and comprising, semiconductor light source means, compensating means having a voltage dependent capacitance characteristic substantially similar to that of said light source means, biasing means for applying a biasing current through said light source means and said compensating means, and connecting means for connecting said light source means and said compensating means in anti-series across said signal source and in parallel across said biasing means.
2.
The device as set forth in claim 1 wherein said compensating means includes diode means.
3.
The device as set forth in claim 1 wherein said light source means and said compensating means respectively comprise first and second unipolar semiconductor means.
4.
The device as set forth in claim 1 wherein said connecting means comprises first means for connecting said light source means and said compensating means in anti-series across said signal source, and second means for connecting said light source means and said compensating means in parallel across said biasing means.
5.
The device as set forth in claim 4 wherein said second means includes variable resistance means for controlling the relative baising of said light source means and said compensating means.
6.
The device as set forth in claim 4 wherein said second means includes inductance means for blocking the passage into said biasing means of said A.
C.
signal generated by said signal source.
7.
The device as set forth in claim 4 wherein said first means includes capacitance means for blocking the passage into said signal source of the signal generated by said biasing means.




Description:
The present invention relates to the art of modulated light sources and more particularly to distortion reduction in opto-electronic devices.
With the emergence of fiber-optic technologies and the imminent transposition thereof into communication systems and information processing, a need has developed for a light source with both high linearity and low noise characteristics