Reduction of In-Band Intermodulation Products in Microwave Analog Fiberoptic Links by Application of a Strong Out-of- Band Tone.
01 January 1988
Suppression of in-band intermodulation products in microwave frequency fiberoptic links has been achieved by the application of a strong out-of-band tone. In the measurements reported on in this paper, the desired signal frequency band extended from 3880 to 3920 MHz and the suppression tone frequency was 2000 MHz. The effect was measured using both a commercial diode laser transmitter and a research model diode laser, both operating at 1.3microns. The suppression of the third-order products was obtained without small-signal compression.