MKS Ophir FPD-IG-175, Руководство пользователя

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FPD-IG-175, FPD-UV-3000, FPD-VIS-300 User Manual 2
Ophir Fast Photodiode Detector User’s Manual
Thank you for purchasing your Fast Photodiode Detector from Ophir. This user’s manual will help answer any
questions you may have regarding the safe use and optimal operation of your Fast Photodiode Detector.
Table of Contents
I. Fast Photodiode Detector Overview ................................................................................................................. 2
II. Operation of your Ophir Fast Photodiode Detector .......................................................................................... 3
III. Batteries ............................................................................................................................................................ 3
IV. Accessories ....................................................................................................................................................... 4
V. Troubleshooting ................................................................................................................................................ 4
VI. Specifications: Fast Photodiode Detectors ....................................................................................................... 6
VII. Drawings: Fast Photodiode Detectors .............................................................................................................. 7
VIII. Schematic: Fast Photodiode Detectors ............................................................................................................. 8
IX. Glossary of Terms ............................................................................................................................................ 8
I. Fast Photodiode Detector Overview
Ophir’s Fast Photodiode Detectors contain PIN photodiodes that utilize the photovoltaic effect to
convert optical power into an electrical current for measurement. Internal circuitry provides a reverse
bias voltage to improve the photodiode’s response time. For optimal performance, the output
should be connected to a 50Ω load resistance. Figure 1 below identifies the main elements of your
Fast Photodiode Detector.
Figure 1: Ophir Fast Photodiode Detector
When terminated into the 50Ω input of an oscilloscope, the pulse width of a laser can be measured. When
terminated into a spectrum analyzer, the frequency response of a laser can be measured.