Amplified O-band direct-detection transmission using bismuth-doped fiber amplifiers
Amplified O-band direct-detection transmission using bismuth-doped fiber amplifiers
The recent emergence of bismuth-doped fiber amplifiers (BDFAs) enables the reach extension of high-speed O-band communication links. In this work, our recent efforts on amplified O-band direct-detection (DD) transmission using BDFAs are reviewed. We first present the performance of a four-channel O-band coarse wavelength-division multiplexed (CWDM) transmission over 50-km length of single-mode fiber (SMF), showing that the chromatic dispersion (CD) which has long been neglected in O-band transmission, will degrade the transmission performance of dispersive O-band channels. In this context, we quantify the relative benefits of different DD formats at 50 Gb/s over up to 70-km length of SMF in a BDFA pre-amplified O-band system. The considered formats include Nyquist on-off keying (OOK), Nyquist 4-ary pulse amplitude modulation (PAM4), and Kramers-Kronig (KK) detection assisted subcarrier modulation using quadrature phase-shift keying (QPSK), and they are evaluated over both the low CD 1320-nm wavelength and the more dispersive 1360-nm wavelength. It is demonstrated that OOK exhibits the best receiver sensitivity over all distances up to 70 km at the 1320-nm channel, whereas KK-QPSK achieves the optimal transmission performance at the 1360-nm wavelength when the reach is extended beyond 50 km. We consider that our results provide useful insights into possible future implementations of longer-reach O-band WDM systems.
Bismuth-doped fiber amplifiers, Chromatic dispersion, Direct-detection, O-band transmission
Hong, Yang
73d5144c-02db-4977-b517-0d2f5a052807
Bottrill, Kyle R.H.
8c2e6c2d-9f14-424e-b779-43c23e2f49ac
Taengnoi, Natsupa
afc5fb3e-224b-43b3-a161-931ed77faec1
Thipparapu, Naresh K.
a36a2b4c-b75c-4976-a753-b5fab9e54150
Wang, Yu
87b384ad-fc75-4ec9-a5aa-284452b40156
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
1 November 2021
Hong, Yang
73d5144c-02db-4977-b517-0d2f5a052807
Bottrill, Kyle R.H.
8c2e6c2d-9f14-424e-b779-43c23e2f49ac
Taengnoi, Natsupa
afc5fb3e-224b-43b3-a161-931ed77faec1
Thipparapu, Naresh K.
a36a2b4c-b75c-4976-a753-b5fab9e54150
Wang, Yu
87b384ad-fc75-4ec9-a5aa-284452b40156
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Hong, Yang, Bottrill, Kyle R.H., Taengnoi, Natsupa, Thipparapu, Naresh K., Wang, Yu, Sahu, Jayanta K., Richardson, David J. and Petropoulos, Periklis
(2021)
Amplified O-band direct-detection transmission using bismuth-doped fiber amplifiers.
Yang, Yue
(ed.)
In Twelfth International Conference on Information Optics and Photonics, CIOP 2021.
vol. 12057,
SPIE.
5 pp
.
(doi:10.1117/12.2606135).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The recent emergence of bismuth-doped fiber amplifiers (BDFAs) enables the reach extension of high-speed O-band communication links. In this work, our recent efforts on amplified O-band direct-detection (DD) transmission using BDFAs are reviewed. We first present the performance of a four-channel O-band coarse wavelength-division multiplexed (CWDM) transmission over 50-km length of single-mode fiber (SMF), showing that the chromatic dispersion (CD) which has long been neglected in O-band transmission, will degrade the transmission performance of dispersive O-band channels. In this context, we quantify the relative benefits of different DD formats at 50 Gb/s over up to 70-km length of SMF in a BDFA pre-amplified O-band system. The considered formats include Nyquist on-off keying (OOK), Nyquist 4-ary pulse amplitude modulation (PAM4), and Kramers-Kronig (KK) detection assisted subcarrier modulation using quadrature phase-shift keying (QPSK), and they are evaluated over both the low CD 1320-nm wavelength and the more dispersive 1360-nm wavelength. It is demonstrated that OOK exhibits the best receiver sensitivity over all distances up to 70 km at the 1320-nm channel, whereas KK-QPSK achieves the optimal transmission performance at the 1360-nm wavelength when the reach is extended beyond 50 km. We consider that our results provide useful insights into possible future implementations of longer-reach O-band WDM systems.
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More information
e-pub ahead of print date: 26 July 2021
Published date: 1 November 2021
Additional Information:
This work was supported by the UK’s EPSRC under the Airguide Photonics Programme grant (EP/P030181/1) and the PHOS project (EP/S002871/1).
Venue - Dates:
12th International Conference on Information Optics and Photonics, CIOP 2021, , Xi'an, China, 2021-07-23 - 2021-07-26
Keywords:
Bismuth-doped fiber amplifiers, Chromatic dispersion, Direct-detection, O-band transmission
Identifiers
Local EPrints ID: 471054
URI: http://eprints.soton.ac.uk/id/eprint/471054
ISSN: 0277-786X
PURE UUID: 87bcbf0f-f29e-4f0e-a02b-3fbcaa35addf
Catalogue record
Date deposited: 25 Oct 2022 16:35
Last modified: 18 Mar 2024 03:34
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