
B-70265EN/02 2.INTERNAL STRUCTURE
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Fig.2.2(i) Internal structural drawing (C6000-E : front view)
Fig.2.2(j) Internal structural drawing (C6000-E : rear view)
(1) Output coupler
A transmitting/reflecting mirror which outputs the laser beam
after it has been amplified inside the resonator. The output
coupler consists of a ZnSe (zinc selenide) substrate with a
curvature on the surface and coated with dielectric. ZnSe is
highly toxic. Be particularly careful, therefore, when handling
the output coupler.
(2) Rear mirror
A reflecting mirror consisting of a Ge (germanium) substrate,
coated with dielectric. The rear mirror is used to reflect the laser
beam within the resonator while transmitting part of the laser
light to the outside to obtain the monitor light for laser output
measurement.