Abstract
Current short-range optical interconnects capacity is moving from 100 to 400 Gb/s
and beyond. Direct modulation of several laser sources is used to minimize bandwidth
limitations of current optical and electrical components. This total capacity is
provided either by wavelength division 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
four-level pulse amplitude modulation at 25 GBd of a 1.5 µm vertical-cavity
surface-emitting laser (VCSEL) is presented in this paper. The 20 GHz 3 dB-bandwidth
laser is, at the time of submission, the largest bandwidth of a 1.5 µm VCSEL ever
reported. Forward error correction (FEC) is implemented to achieve transmission over 100
m virtually error free after FEC decoding. Line rate of 100 Gb/s is achieved by
emulation polarization multiplexing using 50 Gb/s signal obtained from a single
VCSEL.
© 2012 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy