Compact polarization diversity Kramers-Kronig coherent receiver on silicon chip
Compact polarization diversity Kramers-Kronig coherent receiver on silicon chip
We design and fabricate a compact silicon photonic integrated circuit (PIC) for polarization diversity heterodyne coherent detection. This PIC integrates two optical gratings for fiber coupling and polarization diversity, two germanium single-ended photodetectors (PDs), and three multimode interferometers (MMIs) for power splitting and optical hybrid. The device is highly compact with a footprint of 0.68mm × 0.9mm. We test this PIC with heterodyne detection experiments of polarization division multiplexed (PDM) 32Gbaud quadrature phase shift keying (QPSK) and 16-ary quadrature amplitude modulation (16QAM) signals. The signal-signal beat interference due to square-law detection is separately mitigated with the Kramers-Kronig (KK) scheme for each of the two orthogonal polarizations. To our best knowledge, we report the first PDM-KK coherent receiver in PIC with a capability of detecting 256Gb/s 16QAM signals, which shows the most compact size among the silicon coherent receivers ever reported.
23654-23660
Zhang, Fan
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Ruan, Xiaoke
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Zhu, Yixiao
938bb542-3de3-4c5c-a432-16741f356ad8
Chen, Zeyu
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Qiu, Xiaoming
1319dd41-e8e5-4c0f-8f94-7c54ff9a3525
Yang, Fan
1fe422d5-52f3-4763-abfe-6a9b68464dd7
Li, Ke
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Li, Yanping
adffcfa9-c6ba-4e98-87b1-de5b04745502
19 August 2019
Zhang, Fan
fe543ad9-71b0-4f8d-b9da-d95280e30802
Ruan, Xiaoke
a9011346-af43-4194-8992-d7f52f8b87cd
Zhu, Yixiao
938bb542-3de3-4c5c-a432-16741f356ad8
Chen, Zeyu
9dca53b3-37a6-4a30-a72a-d73151dd904e
Qiu, Xiaoming
1319dd41-e8e5-4c0f-8f94-7c54ff9a3525
Yang, Fan
1fe422d5-52f3-4763-abfe-6a9b68464dd7
Li, Ke
dd788ca7-0a39-4364-b4b8-65f0bb93340f
Li, Yanping
adffcfa9-c6ba-4e98-87b1-de5b04745502
Zhang, Fan, Ruan, Xiaoke, Zhu, Yixiao, Chen, Zeyu, Qiu, Xiaoming, Yang, Fan, Li, Ke and Li, Yanping
(2019)
Compact polarization diversity Kramers-Kronig coherent receiver on silicon chip.
Optics Express, 27 (17), .
(doi:10.1364/OE.27.023654).
Abstract
We design and fabricate a compact silicon photonic integrated circuit (PIC) for polarization diversity heterodyne coherent detection. This PIC integrates two optical gratings for fiber coupling and polarization diversity, two germanium single-ended photodetectors (PDs), and three multimode interferometers (MMIs) for power splitting and optical hybrid. The device is highly compact with a footprint of 0.68mm × 0.9mm. We test this PIC with heterodyne detection experiments of polarization division multiplexed (PDM) 32Gbaud quadrature phase shift keying (QPSK) and 16-ary quadrature amplitude modulation (16QAM) signals. The signal-signal beat interference due to square-law detection is separately mitigated with the Kramers-Kronig (KK) scheme for each of the two orthogonal polarizations. To our best knowledge, we report the first PDM-KK coherent receiver in PIC with a capability of detecting 256Gb/s 16QAM signals, which shows the most compact size among the silicon coherent receivers ever reported.
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oe-27-17-23654
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Accepted/In Press date: 24 July 2019
e-pub ahead of print date: 5 August 2019
Published date: 19 August 2019
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© 2019 Optical Society of America.
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Local EPrints ID: 433230
URI: http://eprints.soton.ac.uk/id/eprint/433230
ISSN: 1094-4087
PURE UUID: c26eff5a-a0ea-4a0e-b580-0625c1658015
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Date deposited: 12 Aug 2019 16:30
Last modified: 16 Mar 2024 03:20
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Contributors
Author:
Fan Zhang
Author:
Xiaoke Ruan
Author:
Yixiao Zhu
Author:
Zeyu Chen
Author:
Xiaoming Qiu
Author:
Fan Yang
Author:
Yanping Li
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