3
TABLE OF CONTENTS
1
INTRODUCTION TO FABRY-PÉROT INTERFEROMETRY ................................................. 6
1.1
Properties of Fabry-Pérot interferometer ........................................................................ 6
1.2
Traditional design of FP and related problems ............................................................... 7
1.2.1
Non-linear scan .......................................................................................................... 8
1.2.2
Mirror tilt ..................................................................................................................... 8
1.2.3
Tedious to change mirror spacing ............................................................................... 8
1.2.4
Stability ....................................................................................................................... 8
1.2.5
The device is not suited for tandem operation ............................................................ 8
1.3
Novel parallelogram construction used in TFPs spectrometers ...................................... 9
1.3.1
The compound translation stage ............................................................................... 10
1.3.2
Measurement transducer for mirror spacing ............................................................. 10
1.4
Tandem interferometry ................................................................................................. 11
1.5
A practical design of scanning tandem FP ................................................................... 12
1.6
Vibration isolation ......................................................................................................... 14
1.7
Prealignment of the interferometer ............................................................................... 15
1.8
Stabilizing the Fabry-Pérot ........................................................................................... 16
