Reflectometric measurements of fibre-based four-wave mixing systems
Reflectometric measurements of fibre-based four-wave mixing systems
A convenient way of achieving polarization-insensitive four-wave mixing in optical fibers is through the use of two orthogonally polarized pumps. However, the interplay between fiber birefringence and the four-wave mixing processes makes polarization insensitivity challenging to achieve. The strict control of the input pumps' states of polarization has been used to minimize polarization sensitivity. Nonetheless, a comprehensive analysis of the complex interplay between birefringence and four-wave mixing, both theoretically and experimentally, is still missing. Here, we adopt an optical time domain reflectometry technique to address this issue by measuring the Rayleigh back-scattered power of the phase-conjugated idler generated by a four-wave mixing process. A system with approximately 50 cm spatial resolution capable of measuring the onset of polarization dependency of orthogonal-pump four-wave mixing systems in the saturation regime is experimentally demonstrated. The obtained results are compared with a detailed fibre model, and close agreement is confirmed. This study will further the understanding of the polarization sensitivity of multi-wave mixing dynamics in optical fibers and support the design of optimized fiber-based parametric devices.
Birefringent fibre, Four-wave mixing, Mathematical models, Optical fiber dispersion, Optical fiber sensors, Optical fibers, Optical variables measurement, Rayleigh scattering, Wavelength division multiplexing, four-wave mixing, optical time-domain reflectometry
821-827
Liu, Hao
ef7502c1-75d1-47de-907e-3a3749f6e68b
Bottrill, Kyle R.H.
8c2e6c2d-9f14-424e-b779-43c23e2f49ac
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Vitali, Valerio
9d6bfb8c-2e4a-462a-a4d5-03a92f72bb2b
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
15 January 2024
Liu, Hao
ef7502c1-75d1-47de-907e-3a3749f6e68b
Bottrill, Kyle R.H.
8c2e6c2d-9f14-424e-b779-43c23e2f49ac
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Vitali, Valerio
9d6bfb8c-2e4a-462a-a4d5-03a92f72bb2b
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Liu, Hao, Bottrill, Kyle R.H., Masoudi, Ali, Vitali, Valerio and Petropoulos, Periklis
(2024)
Reflectometric measurements of fibre-based four-wave mixing systems.
IEEE Journal of Lightwave Technology, 42 (2), .
(doi:10.1109/JLT.2023.3320982).
Abstract
A convenient way of achieving polarization-insensitive four-wave mixing in optical fibers is through the use of two orthogonally polarized pumps. However, the interplay between fiber birefringence and the four-wave mixing processes makes polarization insensitivity challenging to achieve. The strict control of the input pumps' states of polarization has been used to minimize polarization sensitivity. Nonetheless, a comprehensive analysis of the complex interplay between birefringence and four-wave mixing, both theoretically and experimentally, is still missing. Here, we adopt an optical time domain reflectometry technique to address this issue by measuring the Rayleigh back-scattered power of the phase-conjugated idler generated by a four-wave mixing process. A system with approximately 50 cm spatial resolution capable of measuring the onset of polarization dependency of orthogonal-pump four-wave mixing systems in the saturation regime is experimentally demonstrated. The obtained results are compared with a detailed fibre model, and close agreement is confirmed. This study will further the understanding of the polarization sensitivity of multi-wave mixing dynamics in optical fibers and support the design of optimized fiber-based parametric devices.
Text
Reflectometric Measurements of Fibre-based Four-wave mixing Systems
- Accepted Manuscript
More information
Accepted/In Press date: 27 September 2023
e-pub ahead of print date: 29 September 2023
Published date: 15 January 2024
Additional Information:
Funding Information:
This work was supported in part by the U.K.'s EPSRC through the project PHOS under Grant EP/S002871/1 and in part by the DSIT Project REASON.
Publisher Copyright:
© 1983-2012 IEEE.
Keywords:
Birefringent fibre, Four-wave mixing, Mathematical models, Optical fiber dispersion, Optical fiber sensors, Optical fibers, Optical variables measurement, Rayleigh scattering, Wavelength division multiplexing, four-wave mixing, optical time-domain reflectometry
Identifiers
Local EPrints ID: 482883
URI: http://eprints.soton.ac.uk/id/eprint/482883
ISSN: 0733-8724
PURE UUID: c0380202-eea3-4821-bc0b-46986b7224dd
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Date deposited: 16 Oct 2023 16:47
Last modified: 18 Mar 2024 03:34
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Author:
Valerio Vitali
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