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Construction of a Tabletop Michelson Interferometer (view source)
Revision as of 03:18, 13 July 2009
, 03:18, 13 July 2009no edit summary
Now, let us assume that only about 5% of 1 mW laser light reaches the sensor due to cleanup in the beam expander and the light transmitted through the diamond. If the light is expanded to a 2 cm diameter beam, the beam at the sensor is rated at 1.6×10<sup>-8</sup> W·m<sup>2</sup>
Now, let us assume that only about 5% of 1 mW laser light reaches the sensor due to cleanup in the beam expander and the light transmitted through the diamond. If the light is expanded to a 2 cm diameter beam, the beam at the sensor is rated at 1.6×10<sup>-8</sup> W·m<sup>2</sup>
The two order of magnitude shortfall means that very little of the dynamic range of the sensor will be used, leading to a low signal to noise ratio. ''Increasing the specification of the laser to 5 mW may be called for as a result.''
The two order of magnitude shortfall means that very little of the dynamic range of the sensor will be used, leading to a low signal to noise ratio. '''Increasing the specification of the laser to 5 mW may be called for as a result.'''
* [[Parts List]]
* [[Parts List]]