Abstract
Sub-carrier multiplexed (SCM) optical transmission systems, such as cable television (CATV) networks, require low-distortion distributed feedback (DFB) lasers. The amplitude modulation (AM) frequency division multiplexing (FDM) scheme, preferred in CATV networks, presents severe requirements to the linearity of the transmission. Typically, the composite second-order (CSO) distortion must not exceed –60 dBc.
© 1994 IEEE
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