Abstract
We propose and experimentally demonstrate upstream transmission in a wavelength division multiplexing/optical code division multiplexing (WDM/OCDM) passive optical network (PON) without using any high-cost devices such as mode-locked lasers or LiNbO3 external modulators. To make optical network units (ONUs) simple, a loop-back transmission of short optical pulses for OCDM in upstream transmission was investigated. The quality of the short optical pulses, remotely supplied via 23 km of single-mode fiber (SMF), was sufficient for 4-chipOCDMencoding at the ONUs. 2WDM/4OCDM signals, generated by multiplexing four OCDM signals using the same wavelength as well as another signal with a different wavelength, showed error-free transmission (bit error rate [BER]
| Original language | English |
|---|---|
| Pages (from-to) | 183-189 |
| Number of pages | 7 |
| Journal | IEEE/OSA Journal of Optical Communications and Networking |
| Volume | 5 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2013 |
Keywords
- Optical code division multiplexing (OCDM)
- Passive optical network (PON)
- Reflective semiconductor optical amplifier (RSOA)
- Short optical pulse source
- Wavelength division multiplexing (WDM)
- OCDMA
- SYSTEM
- NETWORKS
- CODE
- WDM
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