Where to buy a continuously variable optical attenuator
Continuously variable optical attenuators can be purchased from specialized photonics suppliers such as RP Photonics, FS, and Arrow Electronics.
Recommended Suppliers
1. RP Photonics RP Photonics provides a detailed buyer's guide for variable optical attenuators, including continuously adjustable types. They offer both fiber-optic and free-space VOAs, with manual or electrically controlled adjustment options. These attenuators are suitable for applications like WDM power equalization, receiver protection, BER testing, and laser power control . You can explore their supplier listings and product specifications on their website. 2. FS (Fiberstore) FS offers fixed and variable fiber optic attenuators with attenuation ranges from 0 to 60 dB. Their variable attenuators are designed for stable and consistent optical power reduction in WDM transmission systems. FS provides detailed product specifications, connector types, and shipping options worldwide . 3. Arrow Electronics Arrow stocks a wide range of optical attenuators, including continuously variable and digital types. They carry products from leading manufacturers such as Huber Suhner, Analog Devices, and TE Connectivity. Arrow's platform allows you to filter by fiber type, attenuation range, and connector type, and they offer in-stock items ready for immediate shipment . 4. LASEROPTIK / Precision Optics For specialized free-space VOAs, LASEROPTIK provides tiltable edge filter attenuators that allow continuous adjustment of transmission. These are suitable for laboratory setups and high-precision optical experiments .
Considerations When Purchasing
- Optical Format: Fiber-optic vs. free-space. Fiber-optic VOAs are common in telecom networks, while free-space VOAs are used in lab setups.
- Adjustment Method: Manual (micrometer screw or knob) vs. electrical (analog voltage or digital control).
- Attenuation Range: Ensure the device covers the required dB range for your application.
- Connector Type: Common fiber connectors include LC, SC, and FC.
- Power Handling: For high-power lasers, check the maximum optical power rating. By selecting a supplier based on these criteria, you can ensure the VOA meets your technical requirements and is compatible with your optical system.
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