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Stable optical frequency comb distribution enabled by hollow-core fibers

Stable optical frequency comb distribution enabled by hollow-core fibers
Stable optical frequency comb distribution enabled by hollow-core fibers
Over the last two decades, optical frequency combs (OFCs) have enabled some of the most accurate measurements in physics. Distributing light from OFCs via optical fibers could make these high-accuracy measurement tools available more widely, from a few dedicated metrology laboratories to other laboratories and industry. However, the performance of distributed OFCs is strongly limited by impairments of standard single mode fiber (SMF), most notably its thermal sensitivity of chromatic dispersion, for which no compensation technique has been shown to date. To overcome this limitation, use of a new class of optical fiber is suggested here: a hollow core fiber (HCF), which offers more than an order of magnitude lesser such impairment. The measured OFC frequency stability of the optical mode and mode spacing reaches 1.8 × 10−19 and 1.5 × 10−17 at a few thousand seconds, respectively, after transmitting through 7.7 km of HCF. To the best of knowledge, this is the best ever performance for km-lengths of fiber-based OFC distribution. Besides, other HCF advantages over SMF in this application are discussed. Specifically, HCFs offer over an order of magnitude lower thermal sensitivity of propagation delay, several orders of magnitude lower optical nonlinearity, and almost ten times lower chromatic dispersion.
hollow-core fibers, optical frequency combs, stabilized distribution
1863-8880
Feng, Zitong
21760dcd-7979-4733-bc84-dea53c64a81c
Marra, Giuseppe
d76bb79b-27dd-4231-bdbc-d8c92cce88ea
Zhang, Xi
4d8f388b-2c02-414d-92fe-550b12a8075e
Numkam Fokoua, Eric
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Sakr, Hesham
5ec2d89f-ab6e-4690-bbfd-b95fa4cb792d
Hayes, John R
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Feng, Zitong
21760dcd-7979-4733-bc84-dea53c64a81c
Marra, Giuseppe
d76bb79b-27dd-4231-bdbc-d8c92cce88ea
Zhang, Xi
4d8f388b-2c02-414d-92fe-550b12a8075e
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Sakr, Hesham
5ec2d89f-ab6e-4690-bbfd-b95fa4cb792d
Hayes, John R
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d

Feng, Zitong, Marra, Giuseppe, Zhang, Xi, Numkam Fokoua, Eric, Sakr, Hesham, Hayes, John R, Poletti, Francesco, Richardson, David J. and Slavík, Radan (2022) Stable optical frequency comb distribution enabled by hollow-core fibers. Laser & Photonics Reviews, [2200167]. (doi:10.1002/lpor.202200167).

Record type: Article

Abstract

Over the last two decades, optical frequency combs (OFCs) have enabled some of the most accurate measurements in physics. Distributing light from OFCs via optical fibers could make these high-accuracy measurement tools available more widely, from a few dedicated metrology laboratories to other laboratories and industry. However, the performance of distributed OFCs is strongly limited by impairments of standard single mode fiber (SMF), most notably its thermal sensitivity of chromatic dispersion, for which no compensation technique has been shown to date. To overcome this limitation, use of a new class of optical fiber is suggested here: a hollow core fiber (HCF), which offers more than an order of magnitude lesser such impairment. The measured OFC frequency stability of the optical mode and mode spacing reaches 1.8 × 10−19 and 1.5 × 10−17 at a few thousand seconds, respectively, after transmitting through 7.7 km of HCF. To the best of knowledge, this is the best ever performance for km-lengths of fiber-based OFC distribution. Besides, other HCF advantages over SMF in this application are discussed. Specifically, HCFs offer over an order of magnitude lower thermal sensitivity of propagation delay, several orders of magnitude lower optical nonlinearity, and almost ten times lower chromatic dispersion.

Text
Laser Photonics Reviews - 2022 - Feng - Stable Optical Frequency Comb Distribution Enabled by Hollow‐Core Fibers (1) - Version of Record
Available under License Creative Commons Attribution.
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More information

Accepted/In Press date: 8 July 2022
e-pub ahead of print date: 7 August 2022
Keywords: hollow-core fibers, optical frequency combs, stabilized distribution

Identifiers

Local EPrints ID: 468525
URI: http://eprints.soton.ac.uk/id/eprint/468525
ISSN: 1863-8880
PURE UUID: 790b1993-f565-4cf5-a1e4-352c37603532
ORCID for Eric Numkam Fokoua: ORCID iD orcid.org/0000-0003-0873-911X
ORCID for Hesham Sakr: ORCID iD orcid.org/0000-0002-4154-8414
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for Radan Slavík: ORCID iD orcid.org/0000-0002-9336-4262

Catalogue record

Date deposited: 17 Aug 2022 16:33
Last modified: 28 Oct 2022 02:03

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Contributors

Author: Zitong Feng
Author: Giuseppe Marra
Author: Xi Zhang
Author: Hesham Sakr ORCID iD
Author: John R Hayes
Author: Radan Slavík ORCID iD

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