Proc. of SPIE Vol. 7013 70130D-1 - The UC Berkeley Infrared ...

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Figure 3: A schematic of the ISI Interferometer, showing the local oscillators (LO) andthe semiconductor detector-mixers which provide heterodyne detection. The two LOs arelocked together in phase by the phase lock loop (PLL) which responds to their beat signalin another detector-mixer. The IF signals from the two telescopes, of bandwidth 3 GHz,are beat together to form a “fringe”.Proc. of SPIE Vol. 7013 70130D-10
Figure 4: Conceptual block diagram of the heterodyne detection system of theinterferometer. Shown are the main optical systems as well as some of the signalprocessing hardware.Proc. of SPIE Vol. 7013 70130D-11
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Page 8 and 9: Figure 1: U.C. Berkeley Infrared Sp
Page 12 and 13: Figure 5: An interference fringe si
Page 14: Figure 9. One dimensional profile o
Page 17 and 18: Figure 13. Long-baseline visibility
Page 20 and 21: 1. ”Michigan Infrared Combiner (M

Proc. of SPIE Vol. 7013 70130D-1 - The UC Berkeley Infrared ...

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