Luna 4600 - Single-Scan Mode

Optical Backscatter Reflectometer 4600 41
User Guide
4
page 46). Each option performs a complete scalar measurement of the device (or
section of the device, for Spot Scans) under test, and all parameters are available
from measurements done in any mode.
Important
Before attaching any device, clean the fiber optic
connector with the appropriate cleaner to guard against
errors. For instructions, see “Cleaning Connectors” on
page 195.
Single-Scan Mode
The single-scan measurement represents the basic functionality of the OBR. In this
mode the instrument performs a single sweep of the laser over the selected
wavelength range, and acquires data for the device under test over that range.
To perform a single-scan measurement
1 Ensure that the OBR unit is powered on and that the laser is on and ready.
The Laser On light comes on when the laser reaches operating
temperature. Launch the OBR software.
2 Be sure that the instrument has been aligned (see “To align the OBR
optics” on page 34), configured (see “Instrument Configuration” on
page 34), and calibrated (see “To calibrate the system” on page 37)
within the recommended time period.
3 Before connecting the device to the OBR, be sure to clean all fiber optic
connectors. (See “Cleaning Connectors” on page 195.)
4 Connect the device to the Source port on the front of the OBR.
5 Enter an appropriate Center Wavelength in the System Control area
(Figure 4-6).
If the center wavelength entered falls outside the range of the instrument, the
software replaces it with a value within the instrument’s range. (See the
Specifications Sheet shipped with your OBR unit for standard instrument
wavelength ranges.)