Thorlabs' single mode optical fibers are available for operating wavelengths from 300 nm to 2.3 μm. Our selection includes high-NA fiber, non-zero dispersion-shifted fiber, photosensitive fiber, and double-clad optical fiber for applications with ultrashort pulses. In addition, we offer a variety of specialty rare-earth doped single mode optical fibers, including ytterbium and erbium.
Thorlabs' multimode optical fibers include hard-clad silica fibers, small- and large-core fibers, and fiber with very high or low numerical apertures. Additional multimode optical fiber offerings include graded-index, double-clad, and square-core fibers as well as multimode fluoride fiber for use in the mid-IR.
Thorlabs' polarization-maintaining optical fibers are available with operating wavelengths from 350 nm to 2.2 µm. Our selection includes PANDA, bow-tie, Zing™, and specialty spun fibers. In addition, we offer dispersion compensating fibers for applications with ultrashort pulses.
Thorlabs offers a selection of photonic crystal fibers (PCF), provided by NKT Photonics, to provide high confinement of transmitted light. These options include air guided, polarization-maintaining, endlessly single mode and large-mode-area fibers.