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SWS20010-A-2 Datasheet(PDF) 2 Page - JDS Uniphase Corporation |
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SWS20010-A-2 Datasheet(HTML) 2 Page - JDS Uniphase Corporation |
2 / 8 page 2 SWS directly measures IL, PDL and average loss as a function of wavelength. RL is measured with the optional RL modules (SWS20005). Using the raw IL and PDL data, the application software provides a comprehensive set of analysis tools that calculate: • Loss at peak • Center wavelength, from x dB threshold • Loss at center wavelength • Bandwidth at x dB threshold • Crosstalk, left/right and cummulative • Flatness These parameters are calculated relative to the measured peak, ITU grid or user- defined grid. The SWS is delivered with a set of DLLs that can be used to develop software to suit custom testing requirements. The DLLs function through the SWS receiver hardware, allowing access to all SWS functionality. Using the supplied DLLs, applications may be developed in Visual Basic TM, C, C++, or LabView environments. With a 4-State polarization controller located within the SOM, PDL and average loss are measured quickly as a function of wavelength. Four polarization states at 0°, 90°, - 45° and circular polarization are measured, and the Mueller matrix analysis is used to accurately determine PDL at all wavelengths scanned. When the very highest accuracy PDL measurements are required, a special version of the detector module should be used. The SWS15107-A contains specially selected and tuned components to allow PDL measurement to an accuracy of better than ± 0.01 dB. This module is supplied with a fixed FC/APC connector. All specifications listed are met simultaneously. No change in wavelength accuracy (± 2 pm) or scan speed (20 nm/s) is required to obtain a 70 dB dynamic range. SWEPT WAVELENGTH SYSTEM (SWS2000) Continued Typical Application of SWS2000 |
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