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Methods for fine-tuning the wavelength response of single-mode optical-fibre taper filters

Methods for fine-tuning the wavelength response of single-mode optical-fibre taper filters

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© The Institution of Electrical Engineers
Published

The effect of twisting and longitudinal strain on the wavelength response of taper coaxial coupler filters is examined. Both effects permit the fine-tuning of the wavelength response of the single fibre filters, but we demonstrate that a combination of twist and strain is preferred, as it is possible to eliminate residual birefringence present during the fabrication of such filters.

Inspec keywords: optical fibres; optical couplers; optical filters

Other keywords: wavelength response; twisting; coaxial coupler filters; single-mode optical-fibre taper filters; fine-tuning; longitudinal strain; residual birefringence

Subjects: Fibre optics; Spectral and other filters; Fibre optics and fibre waveguides; Optical coatings and filters

References

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      • A.C. Boucouvalas , G. Georgiou . Tapering of single-mode optical fibres. IEE Proc. J. Optoelectron. , 385 - 392
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      • G. Georgiou , A.C. Boucouvalas . High-isolation single-mode wavelength-division multiplexer/demultiplexer. Electron. Lett. , 62 - 63
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      • A.J. Barlow , J.J. Ramskov-hansen , D.N. Payne . Birefringence and polarisation mode-dispersion in spun single-mode fibres. Appl. Opt. , 2962 - 2968
    4. 4)
      • Boucouvalas, A.C., Georgiou, G., Wrigley, A.: `Tapered single mode optical fibres for sensing application', Proceedings of optical fibre sensors conference, 7–9 October 1986, Tokyo, p. PD-2-1–PD-2-5.
    5. 5)
      • Boucouvalas, A.C., Georgiou, G., Wrigley, A.: `Concatenated coaxial couplers', IEE colloquium on advanced fibre waveguide devices, May 1986, Savoy Place London, 20, p. 2.1–2.4.
    6. 6)
      • G. Georgiou , A.C. Boucouvalas . Low-loss single mode optical couplers. IEE Proc. J. Optoelectron. , 297 - 302
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      • A.C. Boucouvalas , G. Georgiou . Fibre optic interferometric tunable switch using the thermo-optic effect. Electron. Lett. , 512 - 514
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      • A.C. Boucouvalas , G. Georgiou . Biconical taper coaxial coupler. Electron. Lett. , 1033 - 1034
    9. 9)
      • T. Okoshi , S. Ryu , K. Emura . Measurement of polarisation parameters of a single mode optical fibre. J. Opt. Commun. , 134 - 141
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