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MMIC-calibrated probing by CW electrooptic modulation

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3 Author(s)
Le Quang, D. ; Dept. Commun., Ecole Nat. Superieure des Telecommun., Paris, France ; Erasme, D. ; Huyart, B.

This paper describes an electrooptic probing technique using a CW semiconductor-laser beam associated with a fast photodetector. Besides its simplicity, this technique presents some advantages over the sampling one thanks to the presence of a Fabry-Perot effect, namely an enhancement of the electrooptic interaction and a simple solution to the calibration problem. The good validity of the calibration method allows the application of this technique to S-parameter measurements. The S-parameter determination, in modulus and in phase, of an industrial MMIC by the electrooptic method is reported and compared with direct network analyzer measurements

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:43 ,  Issue: 5 )