OPTICAL FILTER FOR A BROAD BAND SOURCE
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United States of America
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Issued Date -
Jan 9, 2025
app pub date -
Sep 18, 2024
filing date -
Sep 18, 2024
priority date (Note) -
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Abstract
A filter for filtering a broadband beam and in one embodiment a fluorescence measurement system comprising such a filter. The system includes a broadband light source arranged to provide a broadband beam, a first tunable element arranged to filter at least a portion of the broadband beam thereby providing filtered light and a control unit arranged to provide a control signal to the first tunable element. In one embodiment the first tunable element is an acousto-optic filter (AOTF) and the control signal to the AOTF is an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO) arranged so the AOTF provide a high out-of-band suppression.
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