title: The role of optical filtering in microwave phase shifting.
abstract: We highlight the importance of the delay arising from optical filters in slow-light-based microwave phase shifting systems. We calculate the filter delay numerically from the measured amplitude response by using the well-known Kramers-Kronig relations. The complex filter transmission response is then incorporated within a numerical model with which we explain phase shifting results obtained from experiments employing semiconductor optical amplifiers as slow light elements.
authors.affiliation: Department of Electrical Engineering, Technion, Haifa, 32000, Israel. seanod@ee.technion.ac.il
authors.forename: Seán
authors.initials: S
authors.lastname: O Dúill
authors.forename: Evgeny
authors.initials: E
authors.lastname: Shumakher
authors.forename: Gadi
authors.initials: G
authors.lastname: Eisenstein