User`s guide

Performance Tests Wavelength Accuracy

84 Agilent 81600B Tunable Laser Source Family, Fourth Edition

Note the maximum deviation and the minimum deviation in the Test

Record.

10 The Mode-Hope Free Tuning result is the larger of either the maximum

deviation or the minimum deviation in the Test Record

It is not necessary to repeat the Mode-Hop Free Tuning Test.

Wavelength Repeatability

For definitions, see “Wavelength repeatability (continuous sweep mode)”

and “Wavelength repeatability (stepped mode)” on page 48.

Measurement Principle

The TLS is set to any wavelength (an initial reference wavelength) within

the specified wavelength range and the actual wavelength measured.

Then the TLS is set to another wavelength (generally chosen at random),

re-set to the initial wavelength and the actual wavelength measured again.

This sequence is repeated several times. The maximum deviation of the

measured wavelength after being reset to the reference is calculated and

compared to the test limits.

Then the TLS is set to a second (initial reference) wavelength, and the

sequence repeated.

TLS module Maximum Wavelength Value [λ]

Agilent 81600B #200 1640 nm

Agilent 81600B #160 1640 nm

Agilent 81600B #150 1590 nm

Agilent 81600B #140 1495 nm

Agilent 81600B #130 1375 nm

Agilent 81600B #142 #003 1495 nm

Agilent 81600B #142 1495 nm

Agilent 81600B #132 1375 nm