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Silica holey fibres: fabrication and nonlinear effects

Silica holey fibres: fabrication and nonlinear effects
Silica holey fibres: fabrication and nonlinear effects
Holey fibres (HFs) [1] have emerged as a novel class of optical fibres which can provide completely new optical properties, such as endlessly single mode operation and novel dispersion properties as anomalous dispersion below 1.3µm, broadband flat dispersion and highly normal dispersion at 1.55µm. Moreover by changing the HF parameters (i.e. hole and core size), it is possible to fabricate HFs with an effective area so high as 800µm2 or so low as approximately 1µm2 [2]. A holey fibre perform is fabricated by stacking silica rod and capillaries inside a silica tube. This perform is then drawn to a fibre using a conventional fibre drawing equipment.
In particular we will discuss the basic fabrication procedure for the production of HFs with a very high nonlinearity, and describe recent progress in nonlinear applications of HFs.
For example we have demonstrated for the first time a HF-based Brillouin laser. This experiment used a robust silica jacketed HF with a 1.5µm core, a 100µm outer diameter (see figure 1) and an effective area of 2.85µm2. The laser threshold was found to be 125mW, and the slope efficiency ~70% [3].
By using the same fibre perform and modifying the drawing parameters during the fabrication process, we obtained a different HF with a standard outer dimension of 125µm and a 2µm core. Using this fibre we achieved ultra-broad supercontinuum generation, as shown in figure 2, by launching 20kW peak power pulses at 1.06µm into 7 meter fibre length[4].
Fig 1. SEM of a HF with a 1.5µm core
Fig 2. Broadband continuum spectra
Belardi, W.
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Monro, T.M.
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Lee, J.H.
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Yusoff, Z.
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Price, J.H.V.
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Malinowski, A.
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Piper, A.
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Richardson, D.J.
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Belardi, W.
d09d8952-9503-4ccc-b696-0d53f7d97732
Monro, T.M.
4f0295a8-d9ec-45a5-b72b-72908f2549bb
Lee, J.H.
3b88784a-02e7-4b63-b112-3fdb4e1abf4e
Yusoff, Z.
616f938e-cb24-465a-8584-374249083e61
Price, J.H.V.
fddcce17-291b-4d01-bd38-8fb0453abdc8
Malinowski, A.
54fd31d4-b510-4726-a8cd-33b6b2ad0427
Piper, A.
8a97c5ef-1693-4abb-850b-4a5a76e6e6f4
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Belardi, W., Monro, T.M., Lee, J.H., Yusoff, Z., Price, J.H.V., Malinowski, A., Piper, A. and Richardson, D.J. (2002) Silica holey fibres: fabrication and nonlinear effects. Photon 2002. 02 - 05 Sep 2002.

Record type: Conference or Workshop Item (Paper)

Abstract

Holey fibres (HFs) [1] have emerged as a novel class of optical fibres which can provide completely new optical properties, such as endlessly single mode operation and novel dispersion properties as anomalous dispersion below 1.3µm, broadband flat dispersion and highly normal dispersion at 1.55µm. Moreover by changing the HF parameters (i.e. hole and core size), it is possible to fabricate HFs with an effective area so high as 800µm2 or so low as approximately 1µm2 [2]. A holey fibre perform is fabricated by stacking silica rod and capillaries inside a silica tube. This perform is then drawn to a fibre using a conventional fibre drawing equipment.
In particular we will discuss the basic fabrication procedure for the production of HFs with a very high nonlinearity, and describe recent progress in nonlinear applications of HFs.
For example we have demonstrated for the first time a HF-based Brillouin laser. This experiment used a robust silica jacketed HF with a 1.5µm core, a 100µm outer diameter (see figure 1) and an effective area of 2.85µm2. The laser threshold was found to be 125mW, and the slope efficiency ~70% [3].
By using the same fibre perform and modifying the drawing parameters during the fabrication process, we obtained a different HF with a standard outer dimension of 125µm and a 2µm core. Using this fibre we achieved ultra-broad supercontinuum generation, as shown in figure 2, by launching 20kW peak power pulses at 1.06µm into 7 meter fibre length[4].
Fig 1. SEM of a HF with a 1.5µm core
Fig 2. Broadband continuum spectra

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Published date: 2002
Venue - Dates: Photon 2002, 2002-09-02 - 2002-09-05

Identifiers

Local EPrints ID: 17009
URI: https://eprints.soton.ac.uk/id/eprint/17009
PURE UUID: b49585f8-1160-4ac0-8f55-a3fc7586191a
ORCID for J.H.V. Price: ORCID iD orcid.org/0000-0003-0256-9172
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 09 Sep 2005
Last modified: 06 Mar 2019 01:37

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