EO Modulators
Preliminary specifications for thin film lithium niobate ultrawide band optical modulators
- Thin film lithium niobate modulators allow perfect phase matching between RF signal and optical signal.
- Ultra-wide band optical signal modulation is possible with thin film lithium niobate modulators.
- The modulators use grating couplers for input and output coupling.
- The modulator is provided with FC/PC connectors and polarization maintaining fibers.
| Description | Thin film lithium niobate ultrawide band optical modulators | |
| Parameter | Value | Unit |
| Operating wavelength | 1550* | nm |
| Optical coupler 3dB bandwidth | 40 | nm |
| Fiber to fiber Insertion loss | -8 | dB |
| Optical return loss | >40 | dB |
| Extinction ratio | >20 | dB |
| Vπ | 5 | Volt |
| 3dB bandwidth | 50** | GHz |
| Transmission line length | 10 | mm |
| Input RF impedance | 25 | Ohm |
| * Custom coupler center wavelength modulators can be specified
** Higher bandwidth up to THz is possible with shorter device. (i.e. with higher Vπ). |
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