Speci Cations; De Nition Of Terms - HP 8168E User Manual

Speci cations
De nition of Terms
Absolute wavelength
accuracy:
Linewidth:
Maximum speci ed output
power:
Minimum output power:
The maximum di erence between the actual wavelength and the
displayed wavelength of the TLS. Wavelength is de ned as
wavelength in vacuum.
constant power level, temperature within operating
Conditions:
temperature range, coherence control o .
with wavelength meter.
Measurement
The 3 dB width of the optical spectrum, expressed in Hertz.
temperature within operating temperature range,
Conditions:
coherence control o .
with heterodyning technique: the output of the laser
Measurement
under test is mixed with another laser of the same type on a wide
bandwidth photodetector. The electrical noise spectrum of the
photodetector current is measured with HP lightwave signal analyzer.
The maximum output power speci ed at a speci c wavelength.
at the end of a patchcord.
Measurement
The minimum output power for which the speci cations apply.
C
Speci cations C-1