Abstract
A directly modulated 1.3-mm 77-channel AM-VSB video and 63-channel simulated 256-QAM digital signals lightwave long-haul transmission system using a praseodymium-doped fiber amplifier (PDFA) and split-band and wavelength-division multiplexing (WDM) techniques is demonstrated. A high system performance of carrier-to-noise ratio (CNR) .50 dB, composite second order (CSO) .65.5 dB, and composite triple beat (CTB) .64 dB for AM-VSB is obtained, accompanied with carrier-to-noise and nonlinear distortion ratio (C/(N1NLD)).38 dB for 256-QAM. © 2002
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