Direct and Low-loss Connection Between a Hollow-core Optical Fiber and a Dispersion Compensating Fiber for Dispersion-free Delivery of Short Optical Pulses in Hollow-core Fiber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F23%3A00365487" target="_blank" >RIV/68407700:21230/23:00365487 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2648720" target="_blank" >http://dx.doi.org/10.1117/12.2648720</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2648720" target="_blank" >10.1117/12.2648720</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Direct and Low-loss Connection Between a Hollow-core Optical Fiber and a Dispersion Compensating Fiber for Dispersion-free Delivery of Short Optical Pulses in Hollow-core Fiber

Popis výsledku v původním jazyce

Hollow-core fibers (HCFs) have been under intense research interest thanks to their many advantages including low latency, low nonlinearity, and temperature insensitivity. The most recent progress on the double nested antiresonant nodeless fiber (DNANF) demonstrated fiber losses of only 0.174 dB/km. Transmission of ultra-short, high-peak-power pulses can greatly benefit from low nonlinearity of HCFs. However, the waveguide dispersion in HCFs such as DNANF is typically 2-3 ps/(nm.km) in the low-loss transmission region, still causing unwanted pulses broadening. Here, we demonstrate a low-loss interconnection between HCF and a dispersion-compensating fiber (DCF), enabling to obtain HCF+DCF link with zero-net dispersion. To adapt the relatively small mode-filed diameter (MFD) of DCF (4.9 μm) to the MFD of the HCF, we first splice a short segment of graded-index (GRIN) multi-mode fiber on the DCF. The GRIN fiber is then polished to a specific length to obtain an optimal MFD adaptation to our HCF, which was a nested antiresonant nodeless fiber (NANF) with 26.3 μm MFD at 1550 nm. We obtained a loss of only 0.55 dB for the whole DCF-GRIN-NANF component. By depositing an anti-reflective coating on the mode-field adapter end-face, the interconnection loss can be further reduced to 0.39 dB.

Název v anglickém jazyce

Direct and Low-loss Connection Between a Hollow-core Optical Fiber and a Dispersion Compensating Fiber for Dispersion-free Delivery of Short Optical Pulses in Hollow-core Fiber

Popis výsledku anglicky

Hollow-core fibers (HCFs) have been under intense research interest thanks to their many advantages including low latency, low nonlinearity, and temperature insensitivity. The most recent progress on the double nested antiresonant nodeless fiber (DNANF) demonstrated fiber losses of only 0.174 dB/km. Transmission of ultra-short, high-peak-power pulses can greatly benefit from low nonlinearity of HCFs. However, the waveguide dispersion in HCFs such as DNANF is typically 2-3 ps/(nm.km) in the low-loss transmission region, still causing unwanted pulses broadening. Here, we demonstrate a low-loss interconnection between HCF and a dispersion-compensating fiber (DCF), enabling to obtain HCF+DCF link with zero-net dispersion. To adapt the relatively small mode-filed diameter (MFD) of DCF (4.9 μm) to the MFD of the HCF, we first splice a short segment of graded-index (GRIN) multi-mode fiber on the DCF. The GRIN fiber is then polished to a specific length to obtain an optimal MFD adaptation to our HCF, which was a nested antiresonant nodeless fiber (NANF) with 26.3 μm MFD at 1550 nm. We obtained a loss of only 0.55 dB for the whole DCF-GRIN-NANF component. By depositing an anti-reflective coating on the mode-field adapter end-face, the interconnection loss can be further reduced to 0.39 dB.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/GA22-32180S" target="_blank" >GA22-32180S: Pokročilé techniky v mikrovlnné fotonice založené na vláknech typu hollow-core</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 2023 Photonics West 2023, LASE

ISBN

9781510659346

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Washington

Místo konání akce

San Francisco, California

Datum konání akce

28. 1. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001023263700003