Journal article
VCSEL Based Coherent PONs
We present a review of research performed in the area of coherent access technologies employing vertical cavity surface emitting lasers (VCSELs). Experimental demonstrations of optical transmission over a passive fiber link with coherent detection using VCSEL local oscillators and directly modulated VCSEL transmitters at bit rates up to 10 Gbps in the C-band as well as in the O-band are presented.
The broad linewidth and frequency chirp associated with directly modulated VCSELs are utilized in an envelope detection receiver scheme which is demonstrated digitally (off-line) as well as analog (real-time). Additionally, it is shown that in the optical front-end of a coherent receiver for access networks, the 90 ° hybrid can be replaced by a 3-dB coupler.
The achieved results show that VCSELs are attractive light source candidates for transmitter as well as local oscillator for coherent detection PONs.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2014 |
| Pages: | 1423-1433 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2014.2305572 |
| ORCIDs: | Zibar, Darko and Tafur Monroy, Idelfonso |
Access networks C-band Coherence O-band Optical modulation Optical receivers Optical signal processing Optical transmitters Passive optical networks VCSEL based coherent PON VCSEL local oscillators Vertical cavity surface emitting lasers access networks bit rates coherent access technology coherent detection coherent detection PON coherent receiver coupler directly modulated VCSEL transmitter envelope detection receiver scheme frequency chirp laser cavity resonators light source optical communication systems optical fibre couplers optical front-end optical links optical modulation optical receivers optical transmission optical transmitters passive fiber link passive optical networks passive optical networks (PONs) semiconductor lasers surface emitting lasers vertical cavity surface emitting lasers vertical cavity surface emitting lasers (VCSEL)
