Kringlebotn, J.T., Morkel, P.R., Pannell, C.N., Payne, D.N. and Laming, R.I.
Amplified fibre delay line with 27,000 recirculations
Electronics Letters, 28, (2), . (doi:10.1049/el:19920125).
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An active recirculating-ring fibre delay line with 27,000 recirculations is reported, corresponding to a feedback coefficient of 0.99996 or a finesse as high as 150,000. This is the highest value ever reported and indicates the potential for long optical storage times in such devices.
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