MEMS PM Variable Optical Attenuator Cylindrical
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There are 2 variants available with different default states: The bright type or the dark type. The bright type has its lowest loss state at 0 V, while the dark type reaches its lowest insertion loss at a voltage between 5-6 V.
The VOA offers highly reliable, durable, long-life operation in a compact package.
Optical Specifications
| PARAMETER | VALUE | NOTE |
| Wavelength Range | 13:1290~1330 15:1525~1570 16:1600-1650 | Single-band: 13, 15, or 16 |
| Test Wavelength | 1310/1550/1625 | Each test wavelength is the CWL of a specific wavelength range |
| Attenuation Type | Dark or Bright | |
| Attenuation Range | 40 | |
| Attenuation Resolution | Continuous | |
| Attenuation Repeatability | ≤0.1 | Repeatability is defined after 100 cycles |
| Insertion Loss | ≤0.8 | IL is measured at CWL, 23° C If with connectors, IL increases by 0.2~0.3dB |
| Polarization Dependent Loss | ≤0.3 @15dB | |
| Wavelength Dependent Loss | ≤1.0 @15dB | |
| ≤0.5 @15dB | Ultra low WDL | |
| Return Loss | ≥50 | |
| Durability | ≥1x10⁹ | |
| Maximum Optical Power | ≤500 | |
| Extinction Ratio | ≥18 |
- All specifications are without connectors unless otherwise specified.
- Each wavelength band will have its own attenuation curve.
Electrical and Mechanical Specifications
| PARAMETER | VALUE | UNIT | NOTE |
| Latching Type | Non-latching | ||
| Control Type | Direct voltage | ||
| Drive Voltage | <7 | V | Cylindrical package |
| Damage Voltage | ≤10 | V | |
| Resistance | 100K | Ω | 100K/2M |
| Power Consumption | Close to 0 | W | |
| Dimension | Ø5.5×26 | mm | Cylindrical package |
| Ø3.5×15 | Cylindrical package Mini |
（All specifications apply to MSX M3.）
Environmental Conditions
| PARAMETER | VALUE | UNIT | NOTE |
| Operation Temperature | -5~65 | °C | |
| Storage Temperature | -40~85 | °C | |
| Operation Humidity | 5~95 | %RH | |
| Storage Humidity | 5~95 | %RH |