Agilent Technologies Agilent 8164A Guide de l'utilisateur télécharger pdf (Page 101)

Power Tests Performance Tests

Agilent 81600B Tunable Laser Source Family, Fourth Edition 101

4 Connect the fiber to the low SSE output, Output 1.

Set <Optical Output> to <Low SSE (1)>.

5 Make sure the optical output is switched off.

6 For the 81624A/B power meter channel:

• Zero the 81624A/B. Select <Menu> then <Zero>,

•Set the power range manually to +0 dBm,

•Set the Averaging Time to 500 ms,

• Select <dB> as the power units,

•Set λ, the wavelength, to the same as the TLS module, as given in step 3.

7 Switch on the TLS output.

8 At the 81624A/B, select <Menu> then <Disp → Ref>

9 Increase λ, the output wavelength, of the TLS module and of the power

meter to the next value listed in the Test Record.

For the 81600B #140, some wavelengths are set to odd values to avoid

conflict with water absorption lines.

10 Measure the change in output power (in dB) and note this value in the

Te s t R ec o r d.

11 Repeat step 9 to step 10 for all wavelength settings listed in the Test

Record.

12 Determine the maximum deviation and the minimum deviation from

REF and record them in the Test Record.

13 Subtract the minimum deviation from the maximum deviation and

record the result as the Flatness.

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Agilent Technologies Agilent 8164A Guide de l'utilisateur Page 101