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Gain enhancement in Nd3+ doped ZBLAN fibre amplifier using mode coupling filter

Gain enhancement in Nd3+ doped ZBLAN fibre amplifier using mode coupling filter

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The viability of using mode coupling notch filters to suppress the amplified spontaneous emission around 1050 nm in Nd3+ doped ZBLAN fibres was demonstrated. A gain value of 9.2 dB was observed at 1328 nm using one pump at 795 nm and one mode coupling filter.

References

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    2. 2)
      • Miyajima, Y., Sugawa, T., Fukasaku, Y.: `38.2 dB amplification at 1.31 μm and the possibility of 0.98 μm pumping in Pr', PD1, Technical Digest on Optical Amplifiers and their Applications 1991, 1991, 13, Optical Society of America, .
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      • C.B. Probst , A. Bjarklev , S.B. Andreasen . Experimental verification of microbending theory using mode coupling to discrete cladding modes. J. Lightwave Technol. , 1 , 55 - 61
    5. 5)
      • M. Øbro , B. Pedersen , A. Bjarklev , J.H. Povlsen . Highly improved fibre amplifier for operation around 1300 nm. Electron. Lett. , 5 , 470 - 472
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