Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals
The tremendous traffic growth in intra/inter-datacenters requires low-cost high-speed integrated solutions [1]. To enable a significantly reduced footprint directly modulated lasers (DMLs) have been proposed instead of large external modulators. However, it is challenging to use DMLs due to their lo...
Published in: | 2017 19th International Conference on Transparent Optical Networks (ICTON) |
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ftdtupubl:oai:pure.atira.dk:publications/1b873b17-0501-42d2-bf6b-bd32e9e0338a 2023-12-03T10:21:53+01:00 Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals Ozolins, Oskars Da Ros, Francesco Cristofori, Valentina Pang, Xiaodan Schatz, Richard Chaibi, Mohamed E. Bramerie, Laurent Popov, Sergei Galili, Michael Oxenløwe, Leif Katsuo Peucheret, Christophe Jacobsen, Gunnar 2017 application/pdf https://orbit.dtu.dk/en/publications/1b873b17-0501-42d2-bf6b-bd32e9e0338a https://doi.org/10.1109/ICTON.2017.8024895 https://backend.orbit.dtu.dk/ws/files/138585924/08024895.pdf eng eng IEEE info:eu-repo/semantics/openAccess Ozolins , O , Da Ros , F , Cristofori , V , Pang , X , Schatz , R , Chaibi , M E , Bramerie , L , Popov , S , Galili , M , Oxenløwe , L K , Peucheret , C & Jacobsen , G 2017 , Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals . in Proceedings:of the 19th International Conference on Transparent Optical Networks . IEEE , pp. 1-1 , 19th International Conference on Transparent Optical Networks , Girona , Spain , 02/07/2017 . https://doi.org/10.1109/ICTON.2017.8024895 contributionToPeriodical 2017 ftdtupubl https://doi.org/10.1109/ICTON.2017.8024895 2023-11-08T23:59:35Z The tremendous traffic growth in intra/inter-datacenters requires low-cost high-speed integrated solutions [1]. To enable a significantly reduced footprint directly modulated lasers (DMLs) have been proposed instead of large external modulators. However, it is challenging to use DMLs due to their low dispersion tolerance and limited achievable extinction ratio (ER). A promising solution to this problem is optical spectral reshaping (OSR) since it is possible to increase the dispersion tolerance as well as to enhance the achievable ER for both on-of-keying [2] and 4-pulse amplitude modulation (PAM) [3] signals. However, moving to 4-PAM,many of the impressive demonstrations reported so far rely heavily on off-line digital signal processing (DSP), which increases latency, power consumption and cost. In this talk, we report on (i) a detailed numerical analysis on the complex transfer function of the optical filter for optical spectral reshaping in case of pulse amplitude modulation and(ii) an experimental demonstration of real-time dispersion-uncompensated transmission of 10-GBd and 14-GBd 4-PAM signals up to 10- and 26-km SSMF. This is achieved by combining a commercial 10-Gb/s DML with optical spectral shaping, thus removing the need for any complex off-line DSP and improving dispersion tolerance. These achievements are enabled by OSR based on a passive microring resonator fabricated on the SOI platform [4]. Significant improvement in receiver sensitivities was observed for both a 10-GBd signal after 10-km SSMF transmission and 14-GBd with no penalty after 26-km SSMF transmission. Article in Journal/Newspaper DML Technical University of Denmark: DTU Orbit Soi ENVELOPE(30.704,30.704,66.481,66.481) 2017 19th International Conference on Transparent Optical Networks (ICTON) 1 1 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
The tremendous traffic growth in intra/inter-datacenters requires low-cost high-speed integrated solutions [1]. To enable a significantly reduced footprint directly modulated lasers (DMLs) have been proposed instead of large external modulators. However, it is challenging to use DMLs due to their low dispersion tolerance and limited achievable extinction ratio (ER). A promising solution to this problem is optical spectral reshaping (OSR) since it is possible to increase the dispersion tolerance as well as to enhance the achievable ER for both on-of-keying [2] and 4-pulse amplitude modulation (PAM) [3] signals. However, moving to 4-PAM,many of the impressive demonstrations reported so far rely heavily on off-line digital signal processing (DSP), which increases latency, power consumption and cost. In this talk, we report on (i) a detailed numerical analysis on the complex transfer function of the optical filter for optical spectral reshaping in case of pulse amplitude modulation and(ii) an experimental demonstration of real-time dispersion-uncompensated transmission of 10-GBd and 14-GBd 4-PAM signals up to 10- and 26-km SSMF. This is achieved by combining a commercial 10-Gb/s DML with optical spectral shaping, thus removing the need for any complex off-line DSP and improving dispersion tolerance. These achievements are enabled by OSR based on a passive microring resonator fabricated on the SOI platform [4]. Significant improvement in receiver sensitivities was observed for both a 10-GBd signal after 10-km SSMF transmission and 14-GBd with no penalty after 26-km SSMF transmission. |
format |
Article in Journal/Newspaper |
author |
Ozolins, Oskars Da Ros, Francesco Cristofori, Valentina Pang, Xiaodan Schatz, Richard Chaibi, Mohamed E. Bramerie, Laurent Popov, Sergei Galili, Michael Oxenløwe, Leif Katsuo Peucheret, Christophe Jacobsen, Gunnar |
spellingShingle |
Ozolins, Oskars Da Ros, Francesco Cristofori, Valentina Pang, Xiaodan Schatz, Richard Chaibi, Mohamed E. Bramerie, Laurent Popov, Sergei Galili, Michael Oxenløwe, Leif Katsuo Peucheret, Christophe Jacobsen, Gunnar Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
author_facet |
Ozolins, Oskars Da Ros, Francesco Cristofori, Valentina Pang, Xiaodan Schatz, Richard Chaibi, Mohamed E. Bramerie, Laurent Popov, Sergei Galili, Michael Oxenløwe, Leif Katsuo Peucheret, Christophe Jacobsen, Gunnar |
author_sort |
Ozolins, Oskars |
title |
Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
title_short |
Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
title_full |
Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
title_fullStr |
Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
title_full_unstemmed |
Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
title_sort |
optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals |
publisher |
IEEE |
publishDate |
2017 |
url |
https://orbit.dtu.dk/en/publications/1b873b17-0501-42d2-bf6b-bd32e9e0338a https://doi.org/10.1109/ICTON.2017.8024895 https://backend.orbit.dtu.dk/ws/files/138585924/08024895.pdf |
long_lat |
ENVELOPE(30.704,30.704,66.481,66.481) |
geographic |
Soi |
geographic_facet |
Soi |
genre |
DML |
genre_facet |
DML |
op_source |
Ozolins , O , Da Ros , F , Cristofori , V , Pang , X , Schatz , R , Chaibi , M E , Bramerie , L , Popov , S , Galili , M , Oxenløwe , L K , Peucheret , C & Jacobsen , G 2017 , Optical spectral reshaping for directly modulated 4-pulse amplitude modulation signals . in Proceedings:of the 19th International Conference on Transparent Optical Networks . IEEE , pp. 1-1 , 19th International Conference on Transparent Optical Networks , Girona , Spain , 02/07/2017 . https://doi.org/10.1109/ICTON.2017.8024895 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1109/ICTON.2017.8024895 |
container_title |
2017 19th International Conference on Transparent Optical Networks (ICTON) |
container_start_page |
1 |
op_container_end_page |
1 |
_version_ |
1784269691044233216 |