High-speed silicon Michelson interferometer modulator and streamlined IMDD PAM-4 transmission of Mach-Zehnder modulators for the 2 μm wavelength band
High-speed silicon Michelson interferometer modulator and streamlined IMDD PAM-4 transmission of Mach-Zehnder modulators for the 2 μm wavelength band
We demonstrate high-speed silicon modulators optimized for operating at the wavelength of 2 μm. The Mach-Zehnder interferometer (MZI) carrier-depletion modulator with 2 mm phase shifter has a single-arm modulation efficiency (Vπ ·Lπ) of 2.89 V·cm at 4 V reverse bias. Using a push-pull configuration it operates at a data rate of 25 Gbit/s OOK with an extinction ratio of 6.25 dB. We also proposed a mathematically-analysed streamlined IMDD PAM-4 scheme and successfully demonstrated a 25 Gbit/s datarate PAM-4 with the same 2 mm modulator. A Michelson interferometer carrier-depletion modulator with 0.5 mm phase shift length has also been shown with modulation efficiency (Vπ ·Lπ) of 1.36 V·cm at 4 V reverse bias and data rate of 20 Gbit/s OOK. The Michelson interferometer modulator performs similarly to a Mach-Zehnder modulator with twice the phase shifter length.
Fiber optic communications, Hollow core fibers, Optical signal to noise ratio, Photonic bandgap fibers, Silicon modulators, Space division multiplexing
14438-14451
Cao, Wei
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Liu, Shenghao
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Littlejohns, Callum G.
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Thomson, David J.
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Nedeljković, Miloš
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Li, Ke
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Tran, Ying
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Yan, Xingzhao
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Du, Han
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Ren, Zhengqi
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Gardes, Frederic
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Reed, Graham T.
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Mashanovich, Goran Z.
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10 May 2021
Cao, Wei
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Liu, Shenghao
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Littlejohns, Callum G.
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Thomson, David J.
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Nedeljković, Miloš
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Zhang, Weiwei
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Li, Ke
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Banakar, Mehdi
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Tran, Ying
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Yan, Xingzhao
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Du, Han
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Ren, Zhengqi
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Gardes, Frederic
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Reed, Graham T.
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Mashanovich, Goran Z.
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Cao, Wei, Liu, Shenghao, Littlejohns, Callum G., Thomson, David J., Nedeljković, Miloš, Zhang, Weiwei, Li, Ke, Banakar, Mehdi, Tran, Ying, Yan, Xingzhao, Du, Han, Ren, Zhengqi, Gardes, Frederic, Reed, Graham T. and Mashanovich, Goran Z.
(2021)
High-speed silicon Michelson interferometer modulator and streamlined IMDD PAM-4 transmission of Mach-Zehnder modulators for the 2 μm wavelength band.
Optics Express, 29 (10), .
(doi:10.1364/OE.418285).
Abstract
We demonstrate high-speed silicon modulators optimized for operating at the wavelength of 2 μm. The Mach-Zehnder interferometer (MZI) carrier-depletion modulator with 2 mm phase shifter has a single-arm modulation efficiency (Vπ ·Lπ) of 2.89 V·cm at 4 V reverse bias. Using a push-pull configuration it operates at a data rate of 25 Gbit/s OOK with an extinction ratio of 6.25 dB. We also proposed a mathematically-analysed streamlined IMDD PAM-4 scheme and successfully demonstrated a 25 Gbit/s datarate PAM-4 with the same 2 mm modulator. A Michelson interferometer carrier-depletion modulator with 0.5 mm phase shift length has also been shown with modulation efficiency (Vπ ·Lπ) of 1.36 V·cm at 4 V reverse bias and data rate of 20 Gbit/s OOK. The Michelson interferometer modulator performs similarly to a Mach-Zehnder modulator with twice the phase shifter length.
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oe-29-10-14438
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Submitted date: 24 December 2020
Accepted/In Press date: 17 March 2021
Published date: 10 May 2021
Additional Information:
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© 2021 OSA - The Optical Society. All rights reserved.
Keywords:
Fiber optic communications, Hollow core fibers, Optical signal to noise ratio, Photonic bandgap fibers, Silicon modulators, Space division multiplexing
Identifiers
Local EPrints ID: 449251
URI: http://eprints.soton.ac.uk/id/eprint/449251
ISSN: 1094-4087
PURE UUID: f79f8eaf-35e5-46b8-92b2-7684aa6ba8bd
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Date deposited: 20 May 2021 16:32
Last modified: 20 Sep 2024 20:49
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Contributors
Author:
Wei Cao
Author:
Shenghao Liu
Author:
Callum G. Littlejohns
Author:
David J. Thomson
Author:
Miloš Nedeljković
Author:
Weiwei Zhang
Author:
Ke Li
Author:
Mehdi Banakar
Author:
Ying Tran
Author:
Xingzhao Yan
Author:
Han Du
Author:
Zhengqi Ren
Author:
Frederic Gardes
Author:
Graham T. Reed
Author:
Goran Z. Mashanovich
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