Abstract
The methods of generating spread-spectrum sequences with Mach-Zehnder interferometer are studied, also the principle and the scheme of a reported Chebyshev chaotic sequence generator is analyzed. To eliminate the limitation caused by the size of optical elements, a new scheme using the properties of cosine function is put forward. By using voltage to adjust the refractive index of the arms of Mach-Zehnder interferometer, a wavelength adaptive generator can be realized, with which different Chebyshev optical chaotic sequences with different input wavelengths could be obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 2231-2234 |
| Number of pages | 4 |
| Journal | Wuli Xuebao/Acta Physica Sinica |
| Volume | 58 |
| Issue number | 4 |
| Publication status | Published - Apr 2009 |
| Externally published | Yes |
Keywords
- Chaotic sequence
- Chebyshev map
- Lyapunov exponent
- Optical chaotic sequence generator