Exfo FLS-2200 Broadband Source Manual de usuario descargar pdf (Pagina 96)

Technical Specifications

88 FLS-2200

15-minute and

8-hour power

stability (dB)

 The 15-minute power stability expresses

the short-term power stability of the

source. It corresponds to the highest

power variation (Delta) measured over

15 minutes.

 The 8-hour power stability expresses

the long-term power stability of the

source. It corresponds to the highest

power variation (Delta) measured over

8 hours. It gives an indication of the

referencing frequency needed.

Power stability is generally expressed as

± half the maximum power variation

observed (Delta/2).

Using a cooled Ge power meter set at the

central wavelength of the source, it is

possible to measure the difference between

the maximum and minimum power in any

consecutive 15-minute or 8-hour period

within a 12-hour moving observation

window. Each value, kept as a measured

power, is the instantaneous value sampled

at a frequency of 0.1 Hz.

The source total output power is adjusted at

0 dBm when the maximum total output

power of the source is greater than 0 dBm.

This ensures that the saturation effects of

the power meter do not affect power

measurements.

a Ge power meter set at

the source’s central

wavelength

Element Description Measured with...

1 2 ... 91 92 93 94 95 96 97 98 99 100 101 ... 182 183

Sin comentarios

Exfo FLS-2200 Broadband Source Manual de usuario Pagina 96