Abstract

A real-time digital signal processing (DSP)-enabled digital subcarrier cross-connect (DSXC) with resampling filters for channel frequency translation is demonstrated in this paper. This circuit-based DSXC supports flexible and fine data-rate subcarrier channel granularities, offering a low-latency data plane, transparency to modulation formats, and the capability of compensating for transmission impairments in the digital domain. The presented 8×8 DSXC demonstrator makes use of a Virtex-7 field programmable gate array (FPGA) platform, which supports any-to-any switching of eight subcarrier channels with mixed modulation formats and data rates. Digital resampling filters enable frequency translation of subcarrier channels at the cross-connect with much reduced processing requirements for the FPGA resources in comparison to the traditional technique based on in-phase/quadrature mixing and filtering.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optically Disaggregated Data Centers With Minimal Remote Memory Latency: Technologies, Architectures, and Resource Allocation [Invited]

Georgios Zervas, Hui Yuan, Arsalan Saljoghei, Qianqiao Chen, and Vaibhawa Mishra
J. Opt. Commun. Netw. 10(2) A270-A285 (2018)

Real-time 20.37 Gb/s optical OFDM receiver for PON IM/DD systems

Julián S. Bruno, Vicenç Almenar, Javier Valls, and Juan L. Corral
Opt. Express 26(15) 18817-18831 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription