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High-speed bidirectional four-channel optical FDM-NCFSK transmission using an Er/sup 3+/-doped fiber amplifier

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2 Author(s)
Wann-Yih Guo ; Telecommun. Lab., Min. of Transp. & Commun., Taiwan ; Yung-Kuang Chen

A four-channel optical frequency division multiplexed-noncoherent frequency-shift keying (FDM-NCFSK) bidirectional transmission experiment using an Er/sup 3+/ doped fiber amplifier at 1.7 Gb/s for 100 km fiber length is demonstrated. Using commercial distributed feedback (DFB) laser diodes (LDs), a received power of -35 dBm at 10/sup -9/ BER is obtained, and the dispersion degradation over 100-km bidirectional transmission is negligible. With channel spacing of about 30 GHz, the differential power penalty is about 0.1 dB.<>

Published in:
Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 2 )

Date of Publication: Feb. 1993

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