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A Minimal Coherent Receiver for 200 Gb/s/λ PON Downstream with Measured 29 dB Power Budget

Accepted version
Peer-reviewed

Type

Article

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Authors

Abstract

We experimentally demonstrate 200 Gb/s/λ downstream transmission for a passive optical network (PON) with a minimal coherent receiver at optical network unit (ONU). The low complexity receiver required at the cost-sensitive ONU employs heterodyne detection and requires a single photodiode, a 3-dB optical coupler and a local oscillator, and is the simplest coherent receiver. At the optical line terminal (OLT), digital pre-emphasis and Alamouti-coding is applied to the 50 GBaud signal. A power budget of 29 dB is experimentally demonstrated, increasing to 34.5 dB if a balanced receiver is utilized.

Description

Keywords

Optical transmitters, Photodiodes, Passive optical networks, Optical filters, Optical receivers, Finite impulse response filters, Optical network units, Passive optical network (PON), optical network unit (ONU), optical line terminal (OLT)

Journal Title

IEEE Photonics Technology Letters

Conference Name

Journal ISSN

1041-1135
1941-0174

Volume Title

PP

Publisher

Institute of Electrical and Electronics Engineers (IEEE)
Sponsorship
Engineering and Physical Sciences Research Council (EP/R035342/1)
EPSRC (2439055)
Engineering and Physical Sciences Research Council (EP/S022139/1)
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