HP 8168E User Manual page 152

Output power:
Peak power:
Polarization extinction
ratio:
Power atness:
Power linearity:
Power repeatability:
Power stability:
C-2 Speci cations
The maximum output power for the speci ed TLS tuning range.
temperature within operating temperature range.
Conditions:
with power meter at the end of a single-mode ber
Measurement
patchcord.
The highest optical power within speci ed wavelength range.
The ratio of optical power in the slow axis of the
polarization-maintaining ber to optical power in the fast axis within
a speci ed wavelength range.
only for TLS with polarization maintaining ber, TE
Conditions:
mode in slow axis and oriented in line with connector key.
with rotatable polarizer at the end of a
Measurement
polarization-maintaining patchcord, with polarizer orientations for
the fast and slow axes kept xed while changing the wavelength.
When changing the wavelength and measuring the di erences
between actual and displayed power levels, the power atness is
half the span between the maximum and the minimum value of all
di erences relative to the mean power.
uninterrupted line voltage, constant power setting,
Conditions:
6
temperature within 1 K.
with optical power meter.
Measurement
When changing the power level and measuring the di erences
between actual and displayed power levels, the power linearity is
half the span between the maximum and the minimum value of all
di erences.
uninterrupted TLS line voltage, constant wavelength-
Conditions:
and power level settings, temperature within
with optical power meter.
Measurement
The random uncertainty in reproducing the power level after
changing and re-setting the power level or wavelength. The power
6
repeatability is half the span between the maximum and the
minimum value of all di erences relative to the mean power.
uninterrupted TLS line voltage, constant wavelength,
Conditions:
6
temperature within 1 K.
with optical power meter.
Measurement
The change of the power level during a given time span, expressed
6
as half the span of power changes relative to the mean power.
uninterrupted TLS line voltage, constant wavelength-
Conditions:
and power level settings, temperature within
speci ed.
with optical power meter.
Measurement
6
6
6
1 K.
6
1 K, time span as