... 32ways PON & CATV EDFA Combiner with WDM FWA-1550HA Series,PON+CATV EDFA Combiner,32 ports of PON+1 port CATV input EDFA,32 ports of ... optical isolation, the DFB, thermoelectric cooling DFB laser produced by JDSU, Fujitsu, Nortel, Lucent, Fitel and other world-renowned ... laser operating parameters deviate from the permissible range set by the software, micro-processing will automatically turn off laser ...