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Thermal Arrayed Waveguide Grating (TAWG) DWDM Modules are designed for use within the C-band release of DWDM system. To decrease the power dissipation of the devices in different environmental conditions, the AWG package is special designed with selection of reliable thermal plastic with low thermal conduction, and the AWG operating temperature is controlled by using foil resist heater or Peltier TEC with thermistor temperature sensor.
The channel spacing for DWDM is 1.6/0.8/0.4 nm (200GHz/100 GHz/50 GHz grid). This small channel spacing allows to transmit simultaneously much more information.
| Parameter | Unit | Specifications | |
| Channel center wavelength | nm | ITU | |
| Channel spacing | GHz | 100/200 | |
| Channel passband | nm | λc ± 0.11/±0.25 | |
| Ripple over passband | dB | ≤0.5 | |
| Insertion loss | dB | ≤2.0 | |
| Isolation | Adjacent | dB | ≥30 |
| Non-adjacent | dB | ≥40 | |
| PDL | dB | ≤0.3 | |
| Uniformity | dB | ≤1.0 | |
| Wavelength temperature sensitivity | Nm/℃ | ≤0.0003 | |
| Return loss | dB | ≥45 | |
| Operating Temperature | ℃ | -40~+85 | |
| Storage Temperature | ℃ | -40~+85 | |
| Packing Dimension | mm | 28x14.4x6.5 | |
| Fiber Type | Corning clear curve Fiber,900um Jacket | Corning Clear curve Bare fiber | |
| Connector | / | As request |
