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10
Once the stabiliser is removed, use a M1.5 hex key to loosen the retaining grub
screw on the TCF head, whose pressure keeps the etalon container in position.
Pull the etalon container by means of a soft tip and slide it out from the TCF
head; store the etalon container appropriately.
To insert the new etalon, reverse the previous process. The orientation of the
etalon holder is not relevant. For a TCF-2, pay attention that enough space is
left free for the stabiliser. Plug the stabiliser slowly and gently, rotating if
necessary. The stabiliser can only be installed on the head side opposite to the
connector.
Beam power limitations
The TCF is expected to work correctly for laser power up to 300 mW. Over this
limit, the etalon transmission may start to reduce significantly due to laser
heating; the device performance will be severely limited at power comparable
or higher than 3W.
The stabiliser should not be used with a beam power larger than 1.8 W; over
this limit, the performance may degrade and there is a possibility of damage in
the stabiliser electronic circuit.
In order to overcome these limitations, a high power version of the stabiliser and
special coated etalons have been prepared. Please ask Tablestable if you need
to have your TCF or TCF-2 upgraded for high power use.
Specifications
Etalon material:
fused silica
Etalon thickness:
1.509 ± 0.001 mm
Surfaces reflectance (at design wavelength)
94 ± 1 %
Effective average
finesse
:
38.11
Average contrast:
~ 590
Maximum transmittance:
> 80 %
Maximum power consumption:
2 W
Power supply voltage range:
6 ÷ 8 VDC
