Abstract
A scheme for the photonic generation and coherent detection of ultra-wideband radio-frequency (RF) noise is proposed and demonstrated. The technique relies on the amplified spontaneous emission of a broadened stimulated Brillouin scattering process in an optical fiber (SBS-ASE). The SBS-ASE noise is onoff modulated, and down-converted to the RF spectral range via heterodyne beating. The spectrum of the SBS-ASE is broadened beyond 1 GHz by tailored direct modulation of the pump wave. A data transmitter and a coherent receiver are demonstrated experimentally. Coherent detection of the noise waveform is based on the transmission of a delayed, unmodulated replica alongside the data (transmit reference). A performance analysis of the receiver statistics is provided. Q parameter values of 4.6 at data rates of 4 Mb/s are demonstrated.
| Original language | English |
|---|---|
| Article number | 5585811 |
| Pages (from-to) | 1692-1694 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 22 |
| Issue number | 22 |
| DOIs | |
| State | Published - 2010 |
Bibliographical note
Funding Information:Manuscript received July 01, 2010; revised September 09, 2010; accepted September 16, 2010. Date of publication September 27, 2010; date of current version October 29, 2010. The work of Y. Peled and M. Tur was supported in part by the Israel Science Foundation (ISF).
Funding
Manuscript received July 01, 2010; revised September 09, 2010; accepted September 16, 2010. Date of publication September 27, 2010; date of current version October 29, 2010. The work of Y. Peled and M. Tur was supported in part by the Israel Science Foundation (ISF).
| Funders | Funder number |
|---|---|
| Israel Science Foundation |
Keywords
- Microwave photonics
- nonlinear fiber-optics
- stimulated Brillouin scattering (SBS)
- ultra-wideband (UWB) communication