Abstract
Frequency modulation continuous wave (FMCW) laser detection method, which combines the principle of FM radio ranging and laser radar, has the advantages of accurate range and prevent interference. In this paper, a driver module has been designed for a laser diode used in a laser detector by FMCW mode. The driver module has the advantages of compact structure and is suitable for use in some certain situation. Also, the driver can be used for linear FMCW small signal modulation. The modulation frequency can be up to 80 MHz, and the output optical power can be stabilized in 0.81% within 120 seconds. By means of laboratory tests, the usability of the driver on this module has been proved in laser detection.
| Original language | English |
|---|---|
| Pages (from-to) | 118-122 |
| Number of pages | 5 |
| Journal | Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument |
| Volume | 31 |
| Issue number | 8 SUPPL. |
| Publication status | Published - Aug 2010 |
Keywords
- FMCW laser detector
- Laser driver
- Semi-conductor laser