Are polarization-maintaining optical fibers expensive
Polarization-maintaining optical fibers typically cost several hundred dollars per 100 meters, depending on specifications and manufacturer.
Pricing Overview
The cost of PM fibers varies based on factors such as fiber type, wavelength range, extinction ratio, and environmental stability. For example, Nufern high-performance PM fibers are priced per 100 meters, with prices generally in the range of $300–$600 per 100 meters depending on the exact model and specifications .
Factors Affecting Price
- Fiber Type: Single-mode PM fibers are more common and slightly less expensive than specialty multimode PM fibers .
- Wavelength Range: Fibers designed for broader wavelength ranges (e.g., 980–1620 nm) may cost more .
- Extinction Ratio and Beat Length: Higher extinction ratios and shorter beat lengths, which improve polarization maintenance, can increase the price .
- Patch Cables vs. Bare Fiber: Pre-terminated PM patch cables with connectors (FC/APC, FC/PC) are more expensive than bare fiber due to assembly and testing costs, often ranging from $50–$200 per meter for short lengths .
- Custom Orders: Custom lengths, coatings, or environmental specifications (e.g., temperature-resistant fibers) can further increase costs .
Purchasing Options
Suppliers like FindLight and Thorlabs offer both standard and custom PM fibers, allowing buyers to request quotes based on their specific requirements . Prices are often provided upon request because PM fibers are specialty products and costs fluctuate with length, performance, and market conditions. In summary, expect to pay several hundred dollars per 100 meters for standard PM fiber, with higher prices for custom or pre-terminated patch cables. Contacting suppliers directly is recommended to obtain precise quotes for your application.
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