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,最高速率可达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 Modulator
The 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.
Technical Specifications
| Model Number | 792000850 |
| Substrate Material | Lithium Niobate (LiNbO3) |
| Crystal Orientation | X-Cut, Y-Propagating |
| Waveguide Process | Titanium Indiffused (TI) |
| Integrated Photodiode | No |
| Optical Specifications | |
| Operating Wavelength Range | C-band |
| Insertion Loss | 5.5 dB typ., 7.0 dB max. |
| On/Off Extinction Ratio | 22 dB min. @ DC |
| Optical Return Loss | 30 dB min. |
| Polarization Extinction Ratio | 22 dB min |
| Electrical Specifications | |
| RF Port | |
| Drive Voltage Vpi | 7.0 V typ., 7.5 V max. @ 22 Gb/s DPSK (2 Vπ) |
| Electro-optic Bandwidth (-3dB) | 20 GHz min., 23 GHz typ |
| RF Return Loss | 8 dB min., 10 dB typ. @ 17 GHz to 30 GHz |
| RF Input Power | 100 mW absolute max. @ CW |
| Chirp, Alpha Parameter | Zero Chirp, +/-0.2 Maximum |
| Bias Port | |
| Drive Voltage Vpi | 7 V typ., 8 V max., @ 1 kHz |
| Electro-optic Bandwidth (-3dB) | 200MHz minimum |
| Input Impedance | 1 mΩ min. @ DC |
| Environment / User Interface | |
| Input Fiber | PANDA – 900 micron loose tube |
| Output Fiber | PANDA – 900 micron loose tube |
| Input Connector | FC/APC (PM) |
| Output Connector | FC/APC (PM) |
| RF Connector | SMPM MALE (2) |
| Bias Connector | 9 dual solder gullwing pins |
| Photodiode Connector | n/a |
| Dimensions | 93mm(L) x 14mm(W) x 7mm (H) |
| Operating Temperature Range | -5˚C to +75˚C |
| Storage Temperature Range | -40˚C to +85˚C |
