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access icon free Using directly modulated DFBs without power penalty in low-cost and high-power budget coherent access networks

The operation of an extended power budget long reach access network is experimentally demonstrated using commercially available small form pluggable directly modulated transmitters and a simplified coherent receiver free from digital signal processing and phase-locked loops. An ad-hoc choice of photodiode bandwidth allows no penalty compared with external modulation based transmitters.

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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2014.0096
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