Lasers & Optical Fibers Technologies
Variable optical attenuator (ultra low loss VOA) / Components
IDIL Fibres Optiques supplies a continuous Variable Optical Attenuator (VOA) with an unmatched high dynamic range and an ultra low insertion loss.
Variable optical attenuator (ultra low loss VOA) summary
Our VOA is tuned thanks to a micrometric screw which allows an excellent repeatability but also a very high resolution since it can be over 30 dB. IDIL developed two mechanics regarding VOA.
Actually, our product is both compatible with single and multi-mode fibers. The packaging is the same in both cases. VOA provided by IDIL has been designed to be used within the context of telecommunications and instrumentation applications. However, beyond those areas, our band held product leads to other various applications.
Furthermode, IDIL can provide fixed attenuators. Those attenuators were designed thanks to a technique entirely based on optical fibers which allows a very good behaviour towards power. Thus our fixed attenuator withstands power over 5 W.
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- Competitive ultra-low insertion loss < 0.5 dB
- Very high resolution
- Return loss < 60 dB
- Small packaging
- Fibered solution (no free space propagation)
- Facade layout
- Cascadable (60 dB attenuation achievable)
- High power handling
- Telecommunications
- CATV
- EDFA
- High power source
- Instrumentation
| VOA | |||
|---|---|---|---|
| CUSTOM VOA | VOA SINGLE MODE | VOA MULTI MODE | |
| Travel mechanism | Manual or motorized | Manual micrometer | Manual micrometer |
| Wavelength | 500 to 2000 nm | 500 to 2000 nm | 500 to 2000 nm |
| Attenuation range | < 30 dB or custom | 30 dB | 20 dB |
| Insertion loss | < 0.5 dB | < 0.5 dB | < 0.5 dB |
| Attenuation resolution | < 0.05 dB (0 -10 dB) | < 0.05 dB | < 0.05 dB |
| Polarization Dependent Loss | Depend on fiber type | < 0.1 dB (0 -10 dB), < 0.3 dB (10 -30 dB) | NA |
| Polarization Mode Dispersion | < 0.1 ps | < 0.1 ps | NA |
| Return loss | < 60 dB | < 60 dB | < 40 dB |
| Fiber type | SMF-28, PM, MMF, other upon request | SM, PM | MM 50/125, 100/125 (contact us for other) |
| Connectors | FC, LC, SC, SMA, ST, MU, E2000, other | FC, LC, SC, SMA, ST, MU, E2000, other | FC, LC, SC, SMA, ST, MU, E2000, other |
| Buffer | 900 µm or 2.8 mm | 900 µm or 2.8 mm | 900 µm or 2.8 mm |
| Operating temperature | From -5°C to + 65°C | From -5°C to + 65°C | From -5°C to + 65°C |
| Storage temperature | From -40°C to + 85°C | From -40°C to + 85°C | From -40°C to + 85°C |
| Power handling | Up to 5 W | > 5 W | > 5 W |
| Dimensions | Upon request | 65 x 44 x 15 mm³ | 65 x 44 x 15 mm³ |
Content (motorized VOA): User guide, calibration data, USB cable, controller, power supply, input and output fiber
Variable Optical attenuators are commonly used to test optical parameters by temporarily adding a calibrated amount of signal loss, or installed permanently to properly match a fixed power signal. VOAs have the advantages of being stable and offering a large dynamic range > 30 dB. IDIL VOAs can be manual, motorized or cascaded.
