You can order fiber-optic attenuators online from major suppliers like FS.com, DigiKey, Thorlabs, and Amazon, with options for fixed or variable attenuation across single-mode, multimode, and polarization-maintaining fibers.

Key Suppliers and Options

• FS.com offers fixed and variable optical attenuators with attenuation ranges from 0 to 60 dB, suitable for WDM transmission systems, ensuring stable and consistent fiber attenuation .
• DigiKey provides a large in-stock selection of fiber optic attenuators with real-time inventory, pricing, and same-day shipping options, making it convenient for immediate orders .
• Thorlabs carries a wide variety of single-mode (SM), multimode (MM), and polarization-maintaining (PM) attenuators, including manual and electronic variable attenuators, with multiple connector types such as FC/PC, FC/APC, and SMA .
• Amazon lists fiber optic attenuators for industrial and scientific use, offering competitive pricing and customer reviews to guide selection .
• RP Photonics provides a buying guide and supplier list, helping users compare attenuator types, understand technical specifications, and select the right device for applications like receiver protection, BER testing, WDM power balancing, or high-power laser diagnostics .

Selection Considerations

When ordering online, consider the following:

• Attenuation Type: Fixed attenuators provide a constant loss, while variable attenuators allow adjustable attenuation.
• Fiber Type: Ensure compatibility with your system—single-mode, multimode, or polarization-maintaining fibers.
• Connector Type: Common connectors include LC, SC, FC, and SMA; match them to your existing fiber patch cables.
• Attenuation Range: Choose an attenuator with the appropriate dB range for your application.
• Application Needs: For WDM systems, high-power lasers, or sensitive photodetectors, select attenuators that maintain signal integrity and prevent damage.

Ordering Tips

• Check stock availability and shipping options for your region.
• Review technical datasheets to confirm specifications like insertion loss, return loss, and wavelength compatibility.
• Consider customer reviews or supplier support for guidance on installation and performance. By using these suppliers and considering the technical requirements, you can efficiently order optical attenuators online that meet your fiber-optic system needs.