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Broadband electronically tunable resonant microwave modulators for CO/sub 2/ lasers

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.90831· OSTI ID:6477953
An electro-optic microwave modulator generating frequency-swept sidebands 26--31 GHz offset from a CO/sub 2/ laser carrier is described. Resonant enhancement of the modulating field allows as low as 8-mW microwave drive power. Electronic tuning of the resonances by a ferrite phase shifter inside the cavity increases the FWHM modulation bandwidth from 140 MHz (untuned) to 4 GHz.
Research Organization:
Institut fuer Hochfrequenztechnik, Technische Universitaet, Gusshausstrasse 25, A-1040 Wien, Austria
OSTI ID:
6477953
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 34:7; ISSN APPLA
Country of Publication:
United States
Language:
English