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Generation of highly stable 20 GHz transform-limited optical pulses from actively mode-locked Er3+-doped fibre lasers with an all-polarisation maintaining ring cavity

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4 Author(s)
Takara, H. ; NTT Transmission Syst. Labs., Kanagawa, Japan ; Kawanishi, S. ; Saruwatari, M. ; Noguchi, K.

Very high-speed, stable picosecond optical pulses are generated from an active harmonic mode-locked Er3+-doped fibre laser with a 16 m long polarisation maintaining ring cavity. Resultant transform-limited, 3.5-10 ps optical pulses with a time-bandwidth product of 0.31-0.33, are analysed at repetition rates from 2 to 20 GHz. The authors confirm bit-error-free stable operation at up to 8 Gbit/s.

Published in:

Electronics Letters  (Volume:28 ,  Issue: 22 )