HP 8168E - Speci Cations; De Nition of Terms

C
C
Specications
Denition of Terms
Absolute wavelength
accuracy:
The maximum dierence between the actual wavelength and the
displayed wavelength of the TLS. Wavelength is dened as
wavelength in vacuum.
Conditions: constant power level, temperature within operating
temperature range, coherence control o.
Measurement with wavelength meter.
Linewidth: The 3 dB width of the optical spectrum, expressed in Hertz.
Conditions: temperature within operating temperature range,
coherence control o.
Measurement with heterodyning technique: the output of the laser
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.
Maximum specied output
power:
The maximum output power specied at a specic wavelength.
Measurement at the end of a patchcord.
Figure C-1.
Maximum Specied Output Power for 8168D, E and F
(without options)
Minimum output power: The minimum output power for which the specications apply.
Specications C-1