Agilent Technologies 42A Guide de l'utilisateur télécharger pdf (Page 86)

Performance Tests Performance Test Instructions

86 Agilent 81480A and 81680A, 40A, 82A, 42A, & 89A Tunable Laser Modules User’s Guide,

Sixth Edition

f For l

FBG

± 1 nm, check and note t he power level displayed by the

OSA at every 0.1 nm interval. That is, fill out the table shown in

Table Table 19.

3 Determine minimum value of filter transmission and actual Fiber-

Bragg-Grating center wavelength, λ

a Check for minimum transmitted peak power in Table Table 19.

b Mark the associated wavelength set on the Tunable Laser,

TLS_l

, and note the value in the test record.

Table 19 Filter Transmission Characteristic

Tunable Laser Module Output

Wavelength Relative to λ

FBG

Peak Power Level

Associated Wavelength Dis-

played on OSA

−1.0 nm dBm nm

−0.9 nm dBm nm

−0.8 nm dBm nm

−0.7 nm dBm nm

−0.6 nm dBm nm

−0.5 nm dBm nm

−0.4 nm dBm nm

−0.3 nm dBm nm

−0.2 nm dBm nm

−0.1 nm dBm nm

±0nm = λ

FBG

dBm nm

+0.1 nm dBm nm

+0.2 nm dBm nm

+0.3 nm dBm nm

+0.4 nm dBm nm

+0.5 nm dBm nm

+0.6 nm dBm nm

+0.7 nm dBm nm

+0.8 nm dBm nm

+0.9 nm µW nm

+1.0 nm µW nm

1 2 ... 81 82 83 84 85 86 87 88 89 90 91 ... 193 194

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Agilent Technologies 42A Guide de l'utilisateur Page 86

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