The F-SM10-PM (NKT P/N LMA-10-PM) Polarization Maintaining Endlessly Singlemode Photonic Crystal Fiber is an un-doped silica fiber that uses a triangular pattern of air holes to form the cladding. Since the index contrast between the core and the cladding, Δn, is determined only by the geometry of the air holes, it is possible to fabricate fibers with a very small and accurate Δn, and thus obtain very low numerical apertures and very large mode areas. This type of fiber is single-mode over a very broad wavelength range, with a practically constant mode-field diameter (MFD) of 8.0 ± 0.8 μm. It has a polarization extinction ratio of greater than 20 dB. At short wavelengths, the fibers' performance is limited by macro-bending losses, which determines the practical wavelength range for applications. The F-SM Series PCFs are typically used where single-mode, high-power delivery is required without introducing non-linear effects. Coupling light into and out of an F-SM fiber is as simple as for standard doped-glass optical fibers. In a free-space set-up, the optics should match the NA of the fiber and be diffraction limited in order to obtain a low-loss coupling. Since the MFD is practically constant, the NA is proportional to the wavelength, which should be considered in the design of coupling optics for a broad wavelength range. For adding fiber connectors and protective jackets, please contact Newport technical support.

Standard pricing is per meter.


F-SM10-PM (NKT P/N LMA-10-PM)是一种无掺杂的石英光纤，它利用一个三角形的空穴图案形成包层。自该指数对比的核心和包覆,Δn,确定只有空气孔的几何形状,可以制造纤维与一个非常小的和精确的Δn,从而获得很低数值孔径和非常大的模式。这种类型的光纤单模在很宽波长范围,和一个几乎恒定的模场直径8.0±0.8μm(打)。极化消光比大于20分贝。在短波长的情况下，光纤的性能受到宏观弯曲损耗的限制，这决定了应用的实际波长范围。F-SM系列PCFs通常在需要单模大功率传输时使用，而不引入非线性效应。光与F-SM光纤的耦合与标准掺杂玻璃光纤的耦合一样简单。在自由空间的设置中，光学器件应与光纤的NA相匹配，并受衍射限制，以获得低损耗耦合。由于MFD实际上是常数，所以NA与波长成正比，在宽波长范围的耦合光学设计中应考虑这一点。如需添加光纤连接器和保护外套，请联系新港技术支持。标准价格是每米。