Double Pass L-Band EDFA with Unpumped EDF
A new double pass long wavelength band erbium-doped fibre amplifier (L-band EDFA) with a further improved gain is demonstrated using double pass technique with a first 5 m of the EDF is unpumped. The wasted conventional band (C-band) backward amplified spontaneous emission (ASE) is used as a seconda...
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De Gruyter
2003
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