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Increased Bit Rate Direct Modulation AMO-OFDM Transmission by Optical Injection Using Monolithically Integrated Lasers

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7 Author(s)
Browning, C. ; Rince Inst., Dublin City Univ., Dublin, Ireland ; Kai Shi ; Latkowski, S. ; Anandarajah, P.M.
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Experimental and simulation work, presented in this letter, demonstrates for the first time how the monolithic integration of two single-mode lasers in a master-slave configuration, can substantially increase the achievable bit rate of a direct modulation adaptively modulated optical orthogonal frequency-division multiplexing (AMO-OFDM) system. The Levin-Campello algorithm is applied to select the OFDM bit and power loading scheme used for each system configuration. Improvement in terms of data throughput due to injection is measured for several transmission distances with the improvement in performance presented in terms of error vector magnitude per OFDM subcarrier.

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Photonics Technology Letters, IEEE  (Volume:24 ,  Issue: 11 )