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Standing-wave Fourier transform interferometer with an HPT

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4 Author(s)
Jun-Xian Fu ; Solid State & Photonics Labs., Stanford Univ., CA, USA ; Xiaojun Yu ; Bingyang Zhang ; Harris, J.S., Jr.

A compact standing-wave Fourier transform interferometer is experimentally demonstrated in a very broad band. By using an InP-InGaAs-InAlAs heterojunction bipolar phototransistor (HPT) and a PZT-controlled scan mirror, a resolution of 37.5cm/sup -1/ was achieved with a mirror travel length of only 32μm at the fifth harmonic order spectrum component. The experimental results agree well with the mathematical models, and the interferometer resolution could be further improved.

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 1 )