Journal article
High-speed 1550 nm VCSEL data transmission link employing 25 Gbaud 4-PAM modulation and Hard Decision Forward Error Correction
Department of Photonics Engineering, Technical University of Denmark1
Metro-Access and Short Range Systems, Department of Photonics Engineering, Technical University of Denmark2
Technical University of Munich3
Coding and Visual Communication, Department of Photonics Engineering, Technical University of Denmark4
Vertilas GmbH5
Current short-range optical interconnects capacity is moving from 100 Gb/s to 400 Gb/s and beyond. Directly modulation of several laser sources is used to minimize bandwidth limitations of current optical and electrical components. Either this total capacity is provided by wavelengthdivision- multiplexing or parallel optics, it is important to investigate on the ultimate transmission capabilities of each laser source to facilitate current capacity standards and allow for future demands.
High-speed 4-level pulse amplitude modulation at 25 Gbaud of a 1.5 #x00EC;m VCSEL is presented in this paper. The 20 GHz 3 dBbandwidth laser is, at the time of submission, the largest bandwidth of a 1.5 #x00EC;m VCSEL ever reported. Forward error correction (FEC) is implemented to achieve transmission over 100 m virtually error-free after FEC decoding.
Linerate of 100 Gb/s is achieved by emulation polarization multiplexing using 50 Gb/s signal obtained from a single VCSEL.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2013 |
| Pages: | 689-695 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2012.2224094 |
| ORCIDs: | Larsen, Knud J. and Tafur Monroy, Idelfonso |
4-PAM Fiber optics communication Forward error correction Optical interconnects Vertical cavity surface emitting lasers
4-PAM modulation Adaptive optics Bit error rate Demodulation FEC decoding Four-level pulse amplitude modulation (4-PAM) Optical polarization VCSEL data transmission link bit rate 100 Gbit/s to 400 Gbit/s decoding emulation polarization multiplexing forward error correction forward error correction (FEC) frequency 20 GHz hard decision forward error correction optical communication equipment optical interconnections optical interconnects parallel optics pulse amplitude modulation short range optical interconnects surface emitting lasers vertical-cavity surface-emitting lasers (VCSELs) wavelength 1550 nm wavelength division multiplexing
