Definition
The 20GHz direct-through phase modulator is based on a thin-film lithium niobate electro-optic modulator chip package. It is a high-frequency optoelectronic device based on the electro-optic effect (such as thin-film lithium niobate material). It directly changes the phase of the light wave through an external control signal (usually voltage) to achieve phase modulation of the optical signal. Its operating bandwidth is ≥20GHz and half-wave voltage is ≤4V.
Feature
High-frequency broadband performance
Low driving voltage
High stability
High power processing capability
Integrated and miniaturized design
Application
High-speed optical communication
Microwave photonics
Optical fiber sensing
LiDAR
Spectral analysis
Specification
Parameter | Symbol | test condition | Value | Unit |
Working bandwidth | S21 |
| 20/30 | GHz |
Return loss | S11 |
| -10 | dB |
Working wavelength | λ |
| 1310/1550 | nm |
Insertion loss | IL | 1550 nm CW，0 dBm | 4.5/max 5 | dB |
Extinction ratio | ER |
| 20 | dB |
RF half-wave voltage | Vπ | 1550 nm CW，f=50 kHz | 3.5/ max 4 | V |
Unless otherwise specified, the test temperatures are all 25℃. | ||||
Maximum absolute rated value
Parameter | Symbol | Value | Unit |
Input optical power | Ps,o | 23 | dBm |
Input RF power | Ps,rf | 23 | dBm |
Operating temperature | TW | -40 ~ +80 | ℃ |
Storage temperature | TS | -55 ~ +85 | ℃ |
Dimension
Pin | Symbol | Note |
RF connector | RFIN | SSMP connector |
Input fiber | OPIN | FC/APC，PMF |
Output fiber | OPOUT | FC/APC，SMF |
DC feeder 1 | PIN1 | 空 |
DC feeder 2 | PIN2 | 空 |
DC feeder 3 | PIN3 | 空 |
DC feeder 4 | PIN4 | 空 |
joe@zg-photonics.com
0816 - 2384466
