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The Advantest Q8163 Optical Polarization Scrambler uses Advantest’s original polarization-variance method. By adopting the high-speed optical-fiber polarization scramble unit, Q8163 achieves: High-speed polarization variance. Low fluctuation of insertion loss. Low insertion loss. High reliability. Fast and ensured measurement of polarization dependent loss (PDL) can be made by using it with Q8221 series optical power meter, which offers low polarization dependency, high-speed measurement and the LD light source. Specifications. Wavelength range: 1.29 to 1.58 µm. Insertion loss: <= 3 dB or less. Insertion-loss fluctuation: ± 0.005 dB or less. Return loss: >= 43 dB (47 dB typical). Polarization-variance speed (two modes available): >= 500 rotations of the Poincaré sphere per second (high speed), >= 10 rotations of the Poincaré sphere per second (low speed). Input/output connector: FC-SPC. External control: GPIB equipped as standard.
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