5 Performing Basic Measurements
5.1 Introduction
Many different types of optical measurements are possible using the
1936/2936 Series of Power Meters. Most of these possible measurements are
selected from within the MODE menu. This chapter discusses these
measurements.
5.2 Measurement Modes and Units
The Model 1936/2936 provides a number of measurement modes for acquiring
data. At power on, the meter checks the detector’s calibration EEPROM to
determine the available measurement modes supported by the detector.
Measurements can be displayed in various units. The detector type and the
measurement mode determine the set of units available at any given time.
Table 1 illustrates the measurement modes and units available for each detector
family. The measurement modes are grouped naturally into three categories:
CW, Peak-to-Peak (Pk-Pk), and Pulsed. Each will be discussed in the sections
below.
The 1936/2936 Series sets the measurement to a detector specific default mode
depending on the detector used. All Newport detectors have internal logic or
calibration modules. Based on the data stored in detectors, the instrument
knows to auto configure itself and sets up the mode, range, filter, rate, etc.
The user, in the setup screen, can change the detector specific default mode.
The basic measurement techniques for using the 1936/2936 Series are
covered in the following sections. Refer to Table 1 for a review of the
1936/2936’s functions and measurement capabilities.