Keysight Technologies 81618A User Manual

Also see for 81618A: User guide

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Keysight Technologies 81618A User Manual Manual pdf 35 page image

Keysight 81618A/9A and Keysight 81620B/3B/4B/6B/8B Optical Heads User’s Guide 35Specifications 3Optical Head SpecificationsAll optical heads have to be operated with the single (Keysight 81618A) ordual (Keysight 81619A) Interface Modules.Table 4 Keysight 81620B Optical Head SpecificationsSilicon optical head .H\VLJKW81620BSensor element Si, Ø 5 mmWavelength range QPWRQPPower range –90 dBm to +10 dBmApplicable fiber typeOpen beam6WDQGDUG60DQG00PD[PFRUHVL]H1$ę3DUDOOHOEHDPPD[PPUncertainty (accuracy) at reference conditions 1 (600 nm to 1020 nm)Total uncertainty 2 S:(600 nm to 1020 nm)Linearity (power): DW¡&¡&at operating temp. range&:qG%PWRG%P G%< ±0.15 dBNoise (peak to peak) < 0.5 pW (700 nm to 900 nm)Averaging time (minimal) VAnalog output IncludedMaximum safe input power +16 dBmDimensions (H x W x D) 57 mm x 66 mm x 156 mmWeight 0.5 kgRecommended recalibration period 2 yearsOperating temperature ¡&WR¡&Humidity Non-condensingWarm-up time PLQ1. Reference Conditions:• Power level 10 μW (-20 dBm), continuouswave (CW)• Parallel beam, 3 mm spot diameter on thecenter of the detector• Ambient temperature 23 °C ±5 °C• On day of calibration (add ±0.3% for agingover one year, add ±0.6% over two years)• Spectral width of source <10 nm (FWHM)• Wavelength setting at power sensorcorresponding to source wavelengthę ±0.4 nm2. Operating Conditions:• Parallel beam, 3 mm spot diameter on thecenter of the detector or connectorizedfiber with NA ≤0.2 (straight connector)• For NA > 0.2 add 1%• Averaging time 1 s• Within one year after calibration; add 0.3%for second year• Spectral width of source <10 nm (FWHM)• Wavelength setting at power sensorcorresponding to source wavelength±0.4 nm3. Does not include noise; zeroing required;for wavelength <1000 nm applies for–50 dBm to +10 dBm4. Averaging time 1 s, T = 23 °C ±5 °C,ňT ±1 °C, observation time 300 s5. For input power > 2 mW add±0.004 dB/mW; zeroing required