40G速率 Oclaro奥兰若 IQ调制器 铌酸锂光纤调制器 792000850

792000850双臂RF驱动, 适用调制格式DQPSK; 马赫泽德调制器,保偏输入输出,速率可达40Gbps; 低电压驱动;C+L波段工作, 高消光比; IQ调制器又称QAM调制器, 可工作于4QAM, 16QAM, 64QAM调制格式, 其中4QAM的调制就是我们常说的IQ调制. 此外IQ调制器可用于SSB-CS(单边带载波抑制)传输.40 Gb/s DQPSK Dual Parallel ModulatorThe Oclaro DQPSK(Differential Quadrature Reference Phase Shift Keying) modulator design is based on a dual parallel structure of two Mach-Zehnder modulators embedded in a Mach-Zehnder super-structure. Each internal modulator is designed to support 22 Gb/s signals. An integrated polarizer enables high extinction ratios as required for the DQPSK modulation format. High bandwidth photodiode is provided for automatic bias control.