Angle-spliced SMF to hollow core fiber connection with optimized back-reflection and insertion loss
Angle-spliced SMF to hollow core fiber connection with optimized back-reflection and insertion loss
We study and demonstrate angle-cleaved fusion splicing between single mode fiber (SMF) and nested anti-resonant node-less fiber (NANF). First, we analyze the trade-off between the connection loss and back-reflection suppression. Subsequently, we angle-cleave and splice connections with selected parameters, demonstrating a connection loss of 1.25 dB (0.6 dB higher than for a flat-cleaved connection) and back-reflection below -40 dB (as compared to -15 dB for the flat-cleaved connection). The measured spliced connection loss is only slightly higher (0.2-0.3 dB) than that predicted due to the angle cleave and the mode field mismatch. This was achieved mainly thanks to accurate angle-cleaving and an improved offset splicing technique that we have developed. We characterized the prepared SMF-NANF spliced connections with a range of techniques, evaluating the connection loss, unwanted coupling to the LP11 mode, and back-reflection. Finally, we show how the reduced back-reflection can improve the performance of a communication system through reduction of round-trip induced multipath interference.
Angle-cleaved fiber, Fusion splice, Hollow core fiber, Optical fiber splicing
6474-6479
Zhang, Cong
2425f04c-27c2-49e4-baeb-05c324a0d133
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Fu, Songnian
c07e2c14-6ae0-4ec3-b09a-8d3800763d66
Ding, Meng
4ce864fb-eb5c-47d6-8902-7b3785a162d7
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
1 October 2022
Zhang, Cong
2425f04c-27c2-49e4-baeb-05c324a0d133
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Fu, Songnian
c07e2c14-6ae0-4ec3-b09a-8d3800763d66
Ding, Meng
4ce864fb-eb5c-47d6-8902-7b3785a162d7
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Zhang, Cong, Numkam Fokoua, Eric, Fu, Songnian, Ding, Meng, Poletti, Francesco, Richardson, David J. and Slavík, Radan
(2022)
Angle-spliced SMF to hollow core fiber connection with optimized back-reflection and insertion loss.
IEEE Journal of Lightwave Technology, 40 (19), .
(doi:10.1109/JLT.2022.3186721).
Abstract
We study and demonstrate angle-cleaved fusion splicing between single mode fiber (SMF) and nested anti-resonant node-less fiber (NANF). First, we analyze the trade-off between the connection loss and back-reflection suppression. Subsequently, we angle-cleave and splice connections with selected parameters, demonstrating a connection loss of 1.25 dB (0.6 dB higher than for a flat-cleaved connection) and back-reflection below -40 dB (as compared to -15 dB for the flat-cleaved connection). The measured spliced connection loss is only slightly higher (0.2-0.3 dB) than that predicted due to the angle cleave and the mode field mismatch. This was achieved mainly thanks to accurate angle-cleaving and an improved offset splicing technique that we have developed. We characterized the prepared SMF-NANF spliced connections with a range of techniques, evaluating the connection loss, unwanted coupling to the LP11 mode, and back-reflection. Finally, we show how the reduced back-reflection can improve the performance of a communication system through reduction of round-trip induced multipath interference.
Text
JLT-30158-Final
- Accepted Manuscript
More information
In preparation date: 5 April 2022
Accepted/In Press date: 24 June 2022
Published date: 1 October 2022
Additional Information:
Funding: EPSCR: EP/P030181/1) For the purpose of open access, the authors have applied a creative common attribution (CC BY) license to any author accepted manuscript version arising.
Keywords:
Angle-cleaved fiber, Fusion splice, Hollow core fiber, Optical fiber splicing
Identifiers
Local EPrints ID: 456675
URI: http://eprints.soton.ac.uk/id/eprint/456675
ISSN: 0733-8724
PURE UUID: 75f9174a-cced-43e6-800a-124d4c979367
Catalogue record
Date deposited: 06 May 2022 16:32
Last modified: 17 Mar 2024 03:32
Export record
Altmetrics
Contributors
Author:
Cong Zhang
Author:
Eric Numkam Fokoua
Author:
Songnian Fu
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics