50G-PON Downstream Link up to 40 km With a 1342 nm Integrated EML+SOA

A monolithically integrated EML+SOA delivering an output power of +13 dBm is demonstrated as a compact Tx for the 50G-PON downstream link. The device delivers +13 dBm of output power with 6 dB extinction ratio and 55 dB/0.1nm OSNR while also passing the 50G-PON eye mask. By exploiting SOA chirp redu...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 34; no. 6; pp. 306 - 308
Main Authors Rosales, Ricardo, Cano, Ivan N., Nesset, Derek, Brenot, Romain, Talli, Giuseppe
Format Journal Article
LanguageEnglish
Published New York IEEE 15.03.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
50G-PON
Digital signal processing
electro absorption modulated laser
Equalization
Gain
monolithic integration
Optical network units
Optical saturation
Passive optical networks
Power amplifiers
Power generation
semiconductor optical amplifier
Semiconductor optical amplifiers
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Summary:A monolithically integrated EML+SOA delivering an output power of +13 dBm is demonstrated as a compact Tx for the 50G-PON downstream link. The device delivers +13 dBm of output power with 6 dB extinction ratio and 55 dB/0.1nm OSNR while also passing the 50G-PON eye mask. By exploiting SOA chirp reduction correlated to the gain saturation effects we demonstrate enhanced fiber transmission performance. Since 50G-PON is going to be the first PON technology to adopt digital signal processing (DSP), we use receiver side equalization (EQ) in a 20 km link to demonstrate a link budget of 35.8 dB. Furthermore, working in conjunction with the 50G-PON equalizer, a link up to 40 km SSMF at 1342 nm is realized.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2022.3152608