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IM AQ6376-01EN
Functions
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App
Index
1.4 Analysis
Optical Filter Characteristics Measurement
<<See section 6.9 for the operating procedure>>
Optical filter characteristics can be measured from the measured waveform of the light
input to the optical filter from the light source, as well as from the measured waveform
light output from the optical filter.
Analysis can be performed not only on optical filters with only one mode, but also multi-
mode WDM filters.
Measurement of Level Fluctuations in Single-Wavelength Light
<<See section 6.11 for the operating procedure>>
This function is used to measure changes over time in the level of a specific wavelength
level. The sweep width is set to 0 nm, and measurement of the single-wavelength light is
taken. The horizontal axis is the time axes. It is useful for purposes such as optical axis
alignment when a light source is input to an optical fiber.
Template
<<See section 6.12 for the operating procedure>>
The template function compares preset reference data (template data) with a measured
waveform. In addition, if a function for displaying the target spectrum (target line) on the
measurement screen is used, the target spectrum can be referenced while adjusting the
optical axis of an optical device.
The following three templates are provided.
• Upper limit line
• Lower limit line
• Target line
Go/No Go Judgment <<See section 6.12 for the operating procedure>>
The Go/No Go test function compares the active trace waveform against reference data
(template data) preset by the user, and performs a test on the measured waveform (Go/
No Go test).
The template function can be used effectively in situations such as pass/fail tests on
production lines.
Analysis between Line Markers
<<See section 6.13 for the operating procedure>>
You can specify an analysis range with line markers. Analysis is performed in the range
outlined by the two line markers.
Analysis in the Zoom Area <<See section 6.13 for the operating procedure>>
You can specify the zoomed area as the analysis range.
For example, there is a zoom area power measurement function. This function calculates
totalized power between display scales. It is effective for purposes such as ASE
evaluation on optical amplifiers.
Analysis Data Logging <<See section 6.15 for the operating procedure>>
The analysis data logging function measures and records WDM analysis, DFB-LD
analysis, and peak data at regular intervals. The recorded data can be shown on the
screen in tables or graphs. In addition, the contents in tables can be saved to a file in
CSV format.
The following types of data are recorded for WDM analysis and peaks.
• WDM analysis: Wavelength, level, SNR (signal-to-noise ratio)
• Peak: Wavelength, level