1 Scope
This part of IEC 61280 provides definitions and measure procedures for several wavelength and spectral width properties of an optical spectrum associated with a fibre optic communication subsystem,
an optical transmitter, or other light sources used in the operation or test of communication
subsystems.
The measurement is done for the purpose of system construction and/or maintenance.
In the case of communication subsystem signals, the optical transmitter is typically
under modulation.
NOTE Different properties may be appropriate to different spectral types, such as continuous
spectra characteristic of light-emitting diodes (LEDs), and multilongitudinal-mode
(MLM), multitransverse-mode (MTM) and single-longitudinal mode (SLM) spectra, characteristic
of laser diodes (LDs).