Table of Contents
Advertisement
This chapter describes how to calibrate the OMH-6727B InGaAs
Power/WaveHead.
The OMH-6727B InGaAs Power/WaveHead has been sealed to protect internal components
from damage and to maintain the factory calibration. Do not attempt to disassemble the
Optical Measurement Head.
Calibration Overview
It is possible to calibrate the OMH-6727B using a source of known wavelength
and power. Calibrate the 6727B whenever performance verification indicates that
calibration is necessary. The wavelength calibration consists of one point which
shifts future measurements by the amount of the calibration. The power
calibration consists of one point which changes future power measurements by
the percentage calculated during the calibration.
Recommended Equipment
It is recommended that gas-line sources or spectral lamps with the proper line
isolation filters be used for calibration. Laser diodes are not recommended,
however, an extremely stable laser diode may be used if it is lasing in a single
mode and the wavelength is first measured with a calibrated optical spectrum
analyzer.
Warm-up
Before attempting calibration, the OMH-6727B should be allowed to warm up for
at least 1 hour after being connected to the main unit.
C H A P T E R
C
ALIBRATION
OMH-6727B
4
19
Advertisement
Chapters
Table of Contents
