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General Description Mach-Zehnder Modulator for RZ pulse carver Low insertion loss Separated DC bias ports Built-in a monitor PD for auto bias control RoHS compliant Applications - RZ-DQPSK or CS-RZ-DQPSK optical transmission Low Driving voltage@22GHz : < 8V Brand Fujitsu MPN FTM7920FBA Country/Region of Manufacture Japan EAN 0607111558422 .