Distributed feedback laser: external modulator fiber optic delay line for radar applications
Abstract
A unique application of a long fiber optic delay line as a radar repeater to improve radar testing capabilities is described. Using a 31.6 kilometer long experimental externally modulated fiber optic link with a DFB laser, we demonstrated the first known generation of 152 microsecond delayed ideal target at X-band (10 GHz) frequencies having the phase stability and signal-to-noise ratio (SNR) needed for testing modern high resolution Doppler radars.
- Publication:
-
Optical Technology for Microwave Applications IV
- Pub Date:
- September 1989
- DOI:
- 10.1117/12.960542
- Bibcode:
- 1989SPIE.1102...93N
- Keywords:
-
- Delay Lines;
- Distributed Feedback Lasers;
- Fiber Optics;
- Modulators;
- Radar Filters;
- Doppler Radar;
- Electronic Equipment Tests;
- Optics