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2015 | 127 | 1 | 25-28
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From Acoustic Waves to Microwaves

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We present here some results of our research related to the optoelectronics and photonics and show all the experimental setups used. Starting with a discussion on the importance of the waves, we demonstrate our achievements based on employment of acoustic, optical, and microwaves and their technological use. The results concern the acousto-optic and electro-optic effects. The generalized analysis of the electro-optic effect reveals a new high induced birefringence in lithium niobate. A patented optical fiber microphone is presented, and its applications to the measurements of acoustic wave velocity in gases and in the laser ultrasound non-destructive evaluation system are discussed. Finally, the generation of microwaves by an optical method with substantial cost reduction is presented.
  • Department of Microwave and Optoelectronics, Instituto Tecnológico de Aeronáutica, 50, Praça Marechal Eduardo Gomes, São José dos Campos, São Paulo 12228-900, Brazil
  • Division of Photonics, Instituto de Estudos Avançados, Trevo Coronel Aviador José Alberto Albano do Amarante, São José dos Campos, São Paulo 12228-001, Brazil
  • Department of Electric Engineering, Universidade Estadual Paulista, Campus III, Ilha Solteira, São Paulo 15385-000, Brazil
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