How much does low-loss polarization-maintaining fiber cost
Low-loss polarization-maintaining (PM) fibers are relatively expensive, typically ranging from $10 to $50 per meter depending on specifications and supplier.
Price Range and Factors
The cost of PM fibers varies significantly based on fiber type, wavelength, attenuation, and manufacturer. Standard PANDA-type PM fibers with low attenuation and high birefringence, suitable for wavelengths from 400–1550 nm, generally fall in the $10–$50 per meter range for small quantities, though prices can increase for specialized coatings, high numerical aperture designs, or custom lengths (Corning, OZ Optics) . Factors influencing cost include:
- Material quality and purity: High-quality glass and dopants increase performance but also cost .
- Manufacturing complexity: Stress-induced birefringence designs like PANDA fibers require precise fabrication .
- Wavelength and bandwidth: Fibers optimized for non-standard wavelengths or broader bandwidths may incur additional charges .
- Customization: Custom lengths, connectors, or integrated components (splitters, combiners) can raise the price .
- Global supply chain dynamics: Prices fluctuate based on raw material availability and production efficiency .
Applications Justifying Cost
PM fibers are used in fiber optic gyroscopes, interferometric sensors, coherent communications, fiber lasers, and modulators, where maintaining polarization is critical . Their high cost is offset by the performance benefits in precision optical systems .
Summary
For a researcher or engineer seeking low-loss PM fiber for interferometry or similar applications, expect to pay roughly $10–$50 per meter for standard PANDA fibers, with higher prices for custom or specialized designs. It is advisable to contact suppliers directly for quotes, especially if custom wavelengths, coatings, or integrated components are required .
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