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The HP 8158B Optical Attenuator is a fully programmable and highly flexible test instrument. Due to its state-of-the-art fiberless design, all applications employing fibers with a numerical aperture up to 0.3 are covered with one instrument. Multimode and single-mode measurements can thus be easily performed. Specifications. Wavelength Range: 600-1200 nm (opt. 001), 1200-1650 nm (opt. 002) Applicable Fiber Type: all fiber types with an NA:<= 0.3. Attenuation Range (excluding insertion loss: 60.00 dB. Linearity: < ±0.4 dB for single-mode, < ±0.2 dB for multimode. Return loss (incl. connectors): 14dB. Display range: 0.00 to 64.00 dB. Display resolution: 0.01 dB (min. step size). Repeatability (of attenuation after a max. of 6 matings with same connector): single-mode (9/um): <0.2dB. Options. Opt. 001: 600-1200 nm. Opt. 002: 1200-1650 nm. Opt. 011: Diamond HMS-10/ HP connector. Opt. 012: FC/ PC connector. Opt. 013: DIN 47256 connector. Opt. 014: ST connector.
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