40G速率 DP-BPSK调制器, Fujitsu FTM7980EDA, 铌酸锂光纤调制器
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40Gbps PM-BPSK Modulator, Fujitsu FTM7980EDA, Lithium Niobate DP-BPSK Modulator
This optical modulator is a Ti:LiNbO3 DP-BPSK Dual-Drive Mach-Zehnder modulator
with modulation speed of up to 21.5Gbaud. This modulator comprises 3dB coupler,
two BPSK modulators, polarization rotator followed by the polarization beam combiner
and the built-in monitor PD chips for automatic bias control (ABC) for the compensation
system of DC-drift and other phenomena.
The FTM7980EDA modulator supports the advanced Dual Polarization-DPSK modulation
scheme. In general, the DPSK format is particularly suitable for 40G ULH applications; in
combination with coherent detection the 2*20G polarization multiplexed version is very
attractive as an upgrade to existing 10G links to a 40G transmission rate without
modification of the link.
Features
<ul class="list-paddingleft-2"> <li>43Gbps (21.5Gbaud) Mach-Zehnder modulator for “DP-BPSK” transmission format
</li> <li>2 PSK modulators and Polarization Beam Combiner are integrated in one package.
</li> <li>RF interface: GPPO dual drive
</li> <li>Low drive voltage: < 3.5V (2Vp)
</li> <li>Built-in monitor photo diodes for each polarization.
</li> </ul>Application
<ul class="list-paddingleft-2"> <li>High end 40G transmission
• DWDM System
• ULH and Submarine over existing 10G links
• 40G Transponders and Line-cards
Radio over Fiber Transmission
</li> </ul>
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