Abstract
This paper describes the development of novel multimode-fiber (MMF) communication links that achieve half-duplex bidirectional transmission over a single fiber through the use of 850-nm dual-purpose GaAs vertical-cavity optoelectronic devices. The dual-purpose devices are fabricated by focused-ion-beam micromachining (FIBM) of standard vertical-cavity surface-emitting lasers (VCSELs) and are able to be switched between operation as either efficient laser sources or as resonant-cavity-enhanced avalanche photodetectors. An avalanche multiplication factor of 10 is achieved at a reverse-bias voltage of 12.3 V. A 1.25-Gb/s half-duplex bidirectional data communication link is demonstrated and shown to allow error-free transmission of binary data over 500 m of standard 50-μm-core-diameter MMF. Receiver sensitivities for transceivers based upon these devices are predicted for the first time to be comparable with conventional data communication transceivers. Furthermore, a half-duplex analog bidirectional system is constructed, which permits the transmission of advanced RF modulation formats over MMF. Link characterization by error-vector magnitude (EVM) is described. The dual-purpose vertical-cavity devices are employed for bidirectional transmission of 32-symbol quadrature-amplitude-modulated (32-QAM) signals on a carrier frequency of 2 GHz, relevant to many current wireless local-area network and cellular standards. EVM as low as 1.3% rms is observed for a 600-m link of 62.5-μm-core-diameter MMF.
| Original language | English |
|---|---|
| Pages (from-to) | 1283-1294 |
| Number of pages | 12 |
| Journal | Journal of Lightwave Technology |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2006 |
Keywords
- Bidirectional communication
- Multimode fiber (MMF)
- Optical fiber LAN
- Photodiodes
- Radio over fiber
- Vertical-cavity surface-emitting lasers (VCSELs)
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Bidirectional multimode-fiber communication links using dual-purpose vertical-cavity devices. / Ingham, Jonathan D.; Penty, Richard V.; White, Ian H.
In: Journal of Lightwave Technology, Vol. 24, No. 3, 01.03.2006, p. 1283-1294.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Bidirectional multimode-fiber communication links using dual-purpose vertical-cavity devices
AU - Ingham, Jonathan D.
AU - Penty, Richard V.
AU - White, Ian H.
PY - 2006/3/1
Y1 - 2006/3/1
N2 - This paper describes the development of novel multimode-fiber (MMF) communication links that achieve half-duplex bidirectional transmission over a single fiber through the use of 850-nm dual-purpose GaAs vertical-cavity optoelectronic devices. The dual-purpose devices are fabricated by focused-ion-beam micromachining (FIBM) of standard vertical-cavity surface-emitting lasers (VCSELs) and are able to be switched between operation as either efficient laser sources or as resonant-cavity-enhanced avalanche photodetectors. An avalanche multiplication factor of 10 is achieved at a reverse-bias voltage of 12.3 V. A 1.25-Gb/s half-duplex bidirectional data communication link is demonstrated and shown to allow error-free transmission of binary data over 500 m of standard 50-μm-core-diameter MMF. Receiver sensitivities for transceivers based upon these devices are predicted for the first time to be comparable with conventional data communication transceivers. Furthermore, a half-duplex analog bidirectional system is constructed, which permits the transmission of advanced RF modulation formats over MMF. Link characterization by error-vector magnitude (EVM) is described. The dual-purpose vertical-cavity devices are employed for bidirectional transmission of 32-symbol quadrature-amplitude-modulated (32-QAM) signals on a carrier frequency of 2 GHz, relevant to many current wireless local-area network and cellular standards. EVM as low as 1.3% rms is observed for a 600-m link of 62.5-μm-core-diameter MMF.
AB - This paper describes the development of novel multimode-fiber (MMF) communication links that achieve half-duplex bidirectional transmission over a single fiber through the use of 850-nm dual-purpose GaAs vertical-cavity optoelectronic devices. The dual-purpose devices are fabricated by focused-ion-beam micromachining (FIBM) of standard vertical-cavity surface-emitting lasers (VCSELs) and are able to be switched between operation as either efficient laser sources or as resonant-cavity-enhanced avalanche photodetectors. An avalanche multiplication factor of 10 is achieved at a reverse-bias voltage of 12.3 V. A 1.25-Gb/s half-duplex bidirectional data communication link is demonstrated and shown to allow error-free transmission of binary data over 500 m of standard 50-μm-core-diameter MMF. Receiver sensitivities for transceivers based upon these devices are predicted for the first time to be comparable with conventional data communication transceivers. Furthermore, a half-duplex analog bidirectional system is constructed, which permits the transmission of advanced RF modulation formats over MMF. Link characterization by error-vector magnitude (EVM) is described. The dual-purpose vertical-cavity devices are employed for bidirectional transmission of 32-symbol quadrature-amplitude-modulated (32-QAM) signals on a carrier frequency of 2 GHz, relevant to many current wireless local-area network and cellular standards. EVM as low as 1.3% rms is observed for a 600-m link of 62.5-μm-core-diameter MMF.
KW - Bidirectional communication
KW - Multimode fiber (MMF)
KW - Optical fiber LAN
KW - Photodiodes
KW - Radio over fiber
KW - Vertical-cavity surface-emitting lasers (VCSELs)
UR - http://www.scopus.com/inward/record.url?scp=33645004413&partnerID=8YFLogxK
U2 - 10.1109/JLT.2005.863254
DO - 10.1109/JLT.2005.863254
M3 - Article
VL - 24
SP - 1283
EP - 1294
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
SN - 0733-8724
IS - 3
ER -