Abstract
The rocketing grow of demand for communication capacity in fiber back hauls led researchers to a new wireless carrier medium. Laying down optical fibers and maintaining them has proven to be enormously costly and time taking therefore, free space optical (FSO) communication has been introduced to provide fiber like transmission capacity to short reach users. One of the main features of a FSO system is the laser that is used for transmission. In this paper a new multiwavelength erbium doped fiber laser (EDFL) is introduced and its effectiveness in FSO communication is investigated. In our proposed setup 8 channels are extracted from EDFL with each channel transmitting 1.25 Gbps then sent through a single FSO channel. Each channel has a corresponding wavelength which lies on C-band of optical spectrum. Wavelength division multiplexing (WDM) is used to combine 8 signals on transmitter and de-multiplexer is used to split signals on receiver. We consider a point to point FSO system with intensity modulation and direct detection (IM/DD). Results of simulation of This single input single output (SISO) FSO system show bit error rate (BER) of (10-9) is achieved at link range of 1.4 km. Reliability of signal is investigated and proved to be efficient by optical signal to noise ratio (OSNR) analysis.
| Original language | English |
|---|---|
| Title of host publication | The Proceedings of ICP2014 |
| Subtitle of host publication | 5th International Conference on Photonics 2014 |
| Editors | H. A. Abdul-Rashid |
| Place of Publication | Piscataway, NJ |
| Publisher | IEEE |
| Pages | 99-101 |
| Number of pages | 3 |
| ISBN (Print) | 9781479948826 |
| DOIs | |
| Publication status | Published - 2014 |
Keywords
- adaptive optics
- wavelength division multiplexing
- optical transmitters
- bit error rate
- integrated optics
- optical receivers
- Bragg gratings