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Chapter 3 Optical Testing
Broadband testing
Editing a
wavelength
Modulated light The OLP-3057 automatically detects the modulation
Auto lambda
recognition
22
5 Press the Home navigation key to return to the measure-
ment results menu.
The wavelengths you specified appear in the list.
If your desired wavelength is not included on the wavelength
table menu, you can edit the existing wavelengths.
To edit a wavelength
1 Use the up or down arrow keys to select a wavelength.
2 Press the Edit soft key.
The selected wavelength is highlighted and a text box
appears for editing the wavelength.
3 Type in the new wavelength, and then press the OK key.
The table will be updated and the selected wavelength will
become active.
frequency of light signals modulated at the fixed frequencies
270 Hz, 1 kHz and 2 kHz. CW is displayed if it is a constant
wave.
Auto lambda is a special feature invented by JDSU to identify
wavelengths automatically. Therefore, the signal is modulated
(in a light source equipped with Auto lambda [also called
"AUTO λ"], like the JDSU OLS-55/-56) by a certain frequency,
which can be detected by the OLP-3057.
It may not be possible to detect wavelengths reliably if the
following issues occur.
– if the receive level is too low
HST-3000 OLP-3057 Optical Power Meter User's Guide
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