Design and Characterization of Dispersion-Tailored Silicon Strip Waveguides toward Wideband Wavelength Conversion
Summary :
One of cost-effective ways to increase the transmission capacity of current standard wavelength division multiplexing (WDM) transmission systems is to use a wavelength band other than the C-band to transmit in multi-band. We proposed the concept of multi-band system using wavelength conversion, which can simultaneously process signals over a wide wavelength range. All-optical wavelength conversion could be used to convert C-band WDM signals into other bands in a highly nonlinear fiber (HNLF) by four-wave mixing and allow to simultaneously transmit multiple WDM signals including other than the C-band, with only C-band transceivers. Wavelength conversion has been reported for various nonlinear waveguide materials other than HNLF. In such nonlinear materials, we noticed the possibility of wideband transmission by dispersion-tailored silicon-on-insulator (SOI) waveguides. Based on the CMOS process has high accuracy, it is expected that the chromatic dispersion fluctuation could be reduced in mass production. As a first step in the investigation of the broadness of wavelength conversion using SOI-based waveguides, we designed and fabricated dispersion-tailored 12 strip waveguides provided with an edge coupler at both ends. Each of the 12 waveguides having different widths and lengths and is connected to fibers via lensed fibers or by lenses. In order to characterize each waveguide, the pump-probe experimental setup was constructed using a tunable light source as pump and an unmodulated 96-ch C-band WDM test signal. Using this setup, we evaluate insertion loss, input power dependence, conversion bandwidth and conversion efficiency. We confirmed C-band test signal was converted to the S-band and the L-band using the same silicon waveguide with 3dB conversion bandwidth over 100-nm. Furthermore, an increased design tolerance of at least 90nm was confirmed for C-to-S conversion by shortening the waveguide length. It is confirmed that the wavelength converters using the nonlinear waveguide has sufficiently wide conversion bandwidth to enhance the multi-band WDM transmission system.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E106-C No.11 pp.757-764
- Publication Date
- 2023/11/01
- Publicized
- 2023/05/24
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.2022OCP0004
- Type of Manuscript
- Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
- Category
Authors
Hidenobu MURANAKA
Fujitsu Ltd.
Tomoyuki KATO
Fujitsu Ltd.
Shun OKADA
Fujitsu Ltd.
Tokuharu KIMURA
Fujitsu Ltd.
Yu TANAKA
Fujitsu Ltd.
Tsuyoshi YAMAMOTO
Fujitsu Ltd.
Isaac SACKEY
Fraunhofer Institute for Telecommunications Heinrich-Hertz-Institute
Gregor RONNIGER
Fraunhofer Institute for Telecommunications Heinrich-Hertz-Institute
Robert ELSCHNER
Fraunhofer Institute for Telecommunications Heinrich-Hertz-Institute
Carsten SCHMIDT-LANGHORST
Fraunhofer Institute for Telecommunications Heinrich-Hertz-Institute
Colja SCHUBERT
Fraunhofer Institute for Telecommunications Heinrich-Hertz-Institute
Takeshi HOSHIDA
Fujitsu Ltd.
Keyword
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Hidenobu MURANAKA, Tomoyuki KATO, Shun OKADA, Tokuharu KIMURA, Yu TANAKA, Tsuyoshi YAMAMOTO, Isaac SACKEY, Gregor RONNIGER, Robert ELSCHNER, Carsten SCHMIDT-LANGHORST, Colja SCHUBERT, Takeshi HOSHIDA, "Design and Characterization of Dispersion-Tailored Silicon Strip Waveguides toward Wideband Wavelength Conversion" in IEICE TRANSACTIONS on Electronics,
vol. E106-C, no. 11, pp. 757-764, November 2023, doi: 10.1587/transele.2022OCP0004.
Abstract: One of cost-effective ways to increase the transmission capacity of current standard wavelength division multiplexing (WDM) transmission systems is to use a wavelength band other than the C-band to transmit in multi-band. We proposed the concept of multi-band system using wavelength conversion, which can simultaneously process signals over a wide wavelength range. All-optical wavelength conversion could be used to convert C-band WDM signals into other bands in a highly nonlinear fiber (HNLF) by four-wave mixing and allow to simultaneously transmit multiple WDM signals including other than the C-band, with only C-band transceivers. Wavelength conversion has been reported for various nonlinear waveguide materials other than HNLF. In such nonlinear materials, we noticed the possibility of wideband transmission by dispersion-tailored silicon-on-insulator (SOI) waveguides. Based on the CMOS process has high accuracy, it is expected that the chromatic dispersion fluctuation could be reduced in mass production. As a first step in the investigation of the broadness of wavelength conversion using SOI-based waveguides, we designed and fabricated dispersion-tailored 12 strip waveguides provided with an edge coupler at both ends. Each of the 12 waveguides having different widths and lengths and is connected to fibers via lensed fibers or by lenses. In order to characterize each waveguide, the pump-probe experimental setup was constructed using a tunable light source as pump and an unmodulated 96-ch C-band WDM test signal. Using this setup, we evaluate insertion loss, input power dependence, conversion bandwidth and conversion efficiency. We confirmed C-band test signal was converted to the S-band and the L-band using the same silicon waveguide with 3dB conversion bandwidth over 100-nm. Furthermore, an increased design tolerance of at least 90nm was confirmed for C-to-S conversion by shortening the waveguide length. It is confirmed that the wavelength converters using the nonlinear waveguide has sufficiently wide conversion bandwidth to enhance the multi-band WDM transmission system.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2022OCP0004/_p
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@ARTICLE{e106-c_11_757,
author={Hidenobu MURANAKA, Tomoyuki KATO, Shun OKADA, Tokuharu KIMURA, Yu TANAKA, Tsuyoshi YAMAMOTO, Isaac SACKEY, Gregor RONNIGER, Robert ELSCHNER, Carsten SCHMIDT-LANGHORST, Colja SCHUBERT, Takeshi HOSHIDA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Design and Characterization of Dispersion-Tailored Silicon Strip Waveguides toward Wideband Wavelength Conversion},
year={2023},
volume={E106-C},
number={11},
pages={757-764},
abstract={One of cost-effective ways to increase the transmission capacity of current standard wavelength division multiplexing (WDM) transmission systems is to use a wavelength band other than the C-band to transmit in multi-band. We proposed the concept of multi-band system using wavelength conversion, which can simultaneously process signals over a wide wavelength range. All-optical wavelength conversion could be used to convert C-band WDM signals into other bands in a highly nonlinear fiber (HNLF) by four-wave mixing and allow to simultaneously transmit multiple WDM signals including other than the C-band, with only C-band transceivers. Wavelength conversion has been reported for various nonlinear waveguide materials other than HNLF. In such nonlinear materials, we noticed the possibility of wideband transmission by dispersion-tailored silicon-on-insulator (SOI) waveguides. Based on the CMOS process has high accuracy, it is expected that the chromatic dispersion fluctuation could be reduced in mass production. As a first step in the investigation of the broadness of wavelength conversion using SOI-based waveguides, we designed and fabricated dispersion-tailored 12 strip waveguides provided with an edge coupler at both ends. Each of the 12 waveguides having different widths and lengths and is connected to fibers via lensed fibers or by lenses. In order to characterize each waveguide, the pump-probe experimental setup was constructed using a tunable light source as pump and an unmodulated 96-ch C-band WDM test signal. Using this setup, we evaluate insertion loss, input power dependence, conversion bandwidth and conversion efficiency. We confirmed C-band test signal was converted to the S-band and the L-band using the same silicon waveguide with 3dB conversion bandwidth over 100-nm. Furthermore, an increased design tolerance of at least 90nm was confirmed for C-to-S conversion by shortening the waveguide length. It is confirmed that the wavelength converters using the nonlinear waveguide has sufficiently wide conversion bandwidth to enhance the multi-band WDM transmission system.},
keywords={},
doi={10.1587/transele.2022OCP0004},
ISSN={1745-1353},
month={November},}
Copy
TY - JOUR
TI - Design and Characterization of Dispersion-Tailored Silicon Strip Waveguides toward Wideband Wavelength Conversion
T2 - IEICE TRANSACTIONS on Electronics
SP - 757
EP - 764
AU - Hidenobu MURANAKA
AU - Tomoyuki KATO
AU - Shun OKADA
AU - Tokuharu KIMURA
AU - Yu TANAKA
AU - Tsuyoshi YAMAMOTO
AU - Isaac SACKEY
AU - Gregor RONNIGER
AU - Robert ELSCHNER
AU - Carsten SCHMIDT-LANGHORST
AU - Colja SCHUBERT
AU - Takeshi HOSHIDA
PY - 2023
DO - 10.1587/transele.2022OCP0004
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E106-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2023
AB - One of cost-effective ways to increase the transmission capacity of current standard wavelength division multiplexing (WDM) transmission systems is to use a wavelength band other than the C-band to transmit in multi-band. We proposed the concept of multi-band system using wavelength conversion, which can simultaneously process signals over a wide wavelength range. All-optical wavelength conversion could be used to convert C-band WDM signals into other bands in a highly nonlinear fiber (HNLF) by four-wave mixing and allow to simultaneously transmit multiple WDM signals including other than the C-band, with only C-band transceivers. Wavelength conversion has been reported for various nonlinear waveguide materials other than HNLF. In such nonlinear materials, we noticed the possibility of wideband transmission by dispersion-tailored silicon-on-insulator (SOI) waveguides. Based on the CMOS process has high accuracy, it is expected that the chromatic dispersion fluctuation could be reduced in mass production. As a first step in the investigation of the broadness of wavelength conversion using SOI-based waveguides, we designed and fabricated dispersion-tailored 12 strip waveguides provided with an edge coupler at both ends. Each of the 12 waveguides having different widths and lengths and is connected to fibers via lensed fibers or by lenses. In order to characterize each waveguide, the pump-probe experimental setup was constructed using a tunable light source as pump and an unmodulated 96-ch C-band WDM test signal. Using this setup, we evaluate insertion loss, input power dependence, conversion bandwidth and conversion efficiency. We confirmed C-band test signal was converted to the S-band and the L-band using the same silicon waveguide with 3dB conversion bandwidth over 100-nm. Furthermore, an increased design tolerance of at least 90nm was confirmed for C-to-S conversion by shortening the waveguide length. It is confirmed that the wavelength converters using the nonlinear waveguide has sufficiently wide conversion bandwidth to enhance the multi-band WDM transmission system.
ER -
English
