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Evanescent amplification in a single-mode optical fibre

Evanescent amplification in a single-mode optical fibre

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© The Institution of Electrical Engineers
Published

By replacing a portion of the cladding of a single-mode fibre with a laser dye, amplification can be achieved by means of an evanescent field interaction. External gains as high as 22 dB have been measured by guiding both a pulsed pump and CW signal within the single-mode fibre.

Inspec keywords: optical fibres; amplification; dye lasers

Other keywords: evanescent field interaction; single-mode optical fibre; laser dye; CW signal; pulsed pump signal; cladding substitution; amplification

Subjects: Liquid lasers and organic dye lasers; Fibre optics; Lasing action in liquids and organic dyes; Fibre optics and fibre waveguides

References

    1. 1)
      • H. Injeyan , O.M. Stafsudd , N.G. Alexopoulos . Light amplification by evanescent wave coupling in a multimode fibre. Appl. Opt. , 1928 - 1932
    2. 2)
      • K.O. Hill , R.I. Macdonald , A. Watanabe . Evanescent-wave amplification in asymmetric-slab waveguides. J. Opt. Soc. Am. , 263 - 273
    3. 3)
      • E.P. Ippen , C.V. Shank . Evanescent-field-pumped dye laser. Appl. Phys. Lett. , 301 - 302
    4. 4)
      • N. Periasamy , F.P. Schafer . Laser amplification in an optical fiber by evanescent field coupling. Appl. Phys. , 201 - 203
    5. 5)
      • R.A. Bergh , G. Kotler , H.J. Shaw . Single-mode fibre optic directional coupler. Electron. Lett. , 260 - 261
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