Features
● Low insertion loss
● Low Driving Voltage
● Low backlight reflection
● Small package size and light weight
● Good long-term stability
Specifications
Intensity Modulator Specifications
Parameters | Unit | Value |
10GHz | 20GHz | 40GHz |
Optical | Operation wavelength | nm | 960～1100 |
Insertion loss | dB | ≤3.5 |
Max input power | mW | 100 |
Return Loss | dB | ≤-55 |
Residual intensity modulation |
| ≤0.3% |
Electrical | RF half-wave voltage@50kHz | V | ≤2.0 | ≤2.5 | ≤3.0 |
Maximum input RF power | dBm |
| 33 |
|
Working frequency | GHz | 0.01～ 10 | 0.01～ 20 | 0.01～40 |
Bandwidth(-3dBe) | GHz | ≥10 | ≥18 | ≥30 |
Electrical reflection | dB | ≤-10 |
Mechanical | Optical connector |
| FC/APC or FC/PC |
Electrical connector |
| SMA or K(2.92mm) | V(1.85mm) |
Pigtail type | － | PM or SM Fiber |
Environment | Working temperature | ℃ | 0～+70 |
Storage temperature | ℃ | -55～+85 |
*The maximum input optical power 300mW, 500mW, 1000mW can be customized |
These modulators are designed for use at the specified wavelengths. Using the modulator at other wavelengths may cause an increase in the optical loss that is not covered under warranty. In some cases, this loss can be temporary; for instance, the increase in loss caused by shorter wavelengths can usually be reversed by heating the modulator to 80 °C for an hour.
The LIM-1550-B-PA includes a bias circuit that couples the DC bias onto the RF drive electrode. Depending on the application, an external DC block may be needed at the RF input.
What is the Pockel's Effect?
Both our phase and our amplitude modulators are based upon the Pockel's effect: the electro-optic effect where the refractive index along one or more axes is proportional to an externally applied electric field. Therefore, by applying a voltage across the electrodes of an electro-optic crystal, you can change the phase of light as it passes through the crystal. By placing the crystal between crossed polarizers, this phase modulation can be converted into amplitude modulation.
Maximum Ratings for LiNbO3 Modulators |
Optical Input Power | 100 mW |
Input RF Power | 27dBm |
Operating Temperature Range | 0 °C - 70 °C |
Storage Temperature Range | -40 °C - 85 °C |
Dimension
PIN Diagrams
10Ghz LiNbO3 Phase Modulator
20Ghz LiNbO3 Phase Modulator
40Ghz LiNbO3 Phase Modulator
S21 Test Graph
