QPSK (Lightwave Transmitter, QPSK) Sort by: SKU Product Price Default Product Part No. Vendor Availability Price Lightwave Modulator for QPSK/ QAM LM-QPSK-R Optilab 3-4 Weeks $23,550.00 Lightwave Modulator for QPSK/ QAM LM-DPQAM-R Optilab 3-4 Weeks $44,050.00 Lightwave Transmitter for DP-QAM LT-DPQAM-R Optilab Please Call Contact Sales Lightwave Transmitter for QPSK/QAM LT-QPSK-R Optilab Please Call Contact Sales