JDS Uniphase HST-3000 OLP-3057, Руководство пользователя

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Chapter 3 Optical Testing
Broadband testing
22
HST-3000 OLP-3057 Optical Power Meter User’s Guide
5 Press the Home navigation key to return to the measure-
ment results menu.
The wavelengths you specified appear in the list.
Editing a
wavelength
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.
Modulated light The OLP-3057 automatically detects the modulation
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
recognition
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