Abstract
A close-loop chirp compensation system which consists of a simplified frequency-resolved optical gating (FROG) device and liquid crystal spatial light modulator (LC-SLM) is demonstrated. Femtosecond laser pusles are measured by using simplified frequency-resolved optical grating. The phase feedback signals derived from the simplified FROG control the LC-SLM to compensate the chirp of pulses. As a result, 74-fs transform-limited pulses are obtained from nonlinear fiber femtosecond laser amplifier.
| Original language | English |
|---|---|
| Pages (from-to) | 1102003 |
| Number of pages | 1 |
| Journal | Zhongguo Jiguang/Chinese Journal of Lasers |
| Volume | 39 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2012 |
| Externally published | Yes |
Keywords
- Chirp compensation
- Femtosecond laser
- Laser optics
- Liquid crystal spatial light modulator
- Nonlinear fiber amplifier
- Simplified frequency-resolved optical gating