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Laser mode is a very
important index to
measure the laser
characteristic, is an
effective way to
understand laser and
comprehend the theory of
laser. Besides, in
different fields, the
laser requirements are
also different, such as
laser fine processing
requires interferometric
measurements need single
longitudinal mode laser.
In the
experiment, laser
longitudinal mode is
analyzed with a F-P
scanning interferometer,
such as longitudinal
mode observation (Single
longitudinal mode,
Multi-longitudinal mode,
mode competition), line
width of longitudinal
mode measurement,
frequency interval of
longitudinal mode
measurement etc. The
students can understand
the structure and
principle of F-P
scanning interferometer,
grasp how to use it and
comprehend the abstract
concepts above by the
experiment. |
Longitudinal mode of
standing wave cavity
generation mechanism
