Newport MKS Polarization Maintaining Fiber, Bow-Tie, 488-633 nm, 0.10-0.13 NA F-SPA

The F-SPA Polarization Maintaining Fiber uses Fibercore's Bow-Tie polarization maintaining (PM) fiber technology. This highly birefringent (HiBi) fiber, is optimized for operation between 488 - 633 nm and has a beat-length of less than 2 mm. The beat-length, the length over which the fiber polarization rotates through 360°, is one of the fundamental performance measures: the shorter the beat-length, the better the polarization-preserv ing properties of the fiber. This Polarization Maintaining fiber has a 125 μm cladding, 245 μm coating, a 3.6 μm Mode Field Diameter, and a 0.10 to 0.13 NA. Standard pricing is per meter. This bare fiber does not include a protective fiber jacket. Standard pricing is per meter. The following volume discount schedule is applied when ordering continuous lengths of optical fiber: 10 - 49 m: 15%, 50 - 99 m: 22%, 100 - 499 m: 25%, and ≥ 500 m: 28%. Bow-Tie Polarization Maintaining Fiber The core is flanked by areas of high expansion, boron-doped glass, which shrink back more than the surrounding silica. Tension caused induces birefringence (creating two different indices of refraction: a higher index parallel and a lower index perpendicular to the applied stress). Cross section diagram of the Bow-Tie Polarization Maintaining Fiber. High Birefringence "Bow-Tie" cladding preserves polarization with stress-induced intrinsic birefringence. The fast axis is oriented horizontally. “Bow-Tie” cladding preserves polarization with stress-induced intrinsic birefringence. The fast axis is oriented horizontally. Large Wavelength Range and Short Beat Lengths These Bow-tie polarization maintaining fibers, also known as highly birefringent (HiBi) fibers, are optimized for Visible through NIR wavelengths and have a beat-length of less than 2 mm. The beat-length, the length over which the fiber polarization rotates through 360°, is one of the fundamental performance measures: the shorter the beat-length, the better the polarization-preserv ing properties of the fiber. Standard and Custom Patch Cables Standard patch cables are available in several standard lengths with FC/UPC or FC/APC connectors. Please note that slow axis is accurately aligned to the connector key. If you need custom configuration, please use our custom patch configurator model: Applications High-data-rate communications systems Polarization-sensiti ve components Raman amplifiers Fiber optic sensors - polarimetric, polarization state sensing Gyroscopes Coherent transmission and detection Interferometric sensors Modulators Delay lines Spectroscopy Biomedical applications Note on Fiber Length Availability Due to increasing supply constraints, obtaining fiber lengths greater than 1 km has become more challenging. If you require fiber longer than 1 km, please contact us directly to discuss availability and lead times.