High-speed optical Fourier transformer

A new type of high-speed signal processing or analyzing device-the picosecond Fourier transformer-is proposed. The device can be used to obtain the Fourier transform of the time-dependent intensity of an optical signal. The device makes use of the spatially distributed electrooptic modulator or defl...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1983-04, Vol.19 (4), p.674-679
Main Authors: Kobayashi, T., Ibe, H., Fujimoto, S., Morimoto, A., Sueta, T.
Format: Article
Language:English
Subjects:
Bandwidth
Electrooptic modulators
Fourier transforms
High speed optical techniques
Optical devices
Optical modulation
Optical signal processing
Signal analysis
Signal resolution
Spatial resolution
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Description
Summary:A new type of high-speed signal processing or analyzing device-the picosecond Fourier transformer-is proposed. The device can be used to obtain the Fourier transform of the time-dependent intensity of an optical signal. The device makes use of the spatially distributed electrooptic modulator or deflector, and has the potential for terahertz bandwidth and picosecond time resolution. Practical devices are considered and their performances (bandwidth, frequency resolution, etc.) are discussed. The operation of the proposed device is demonstrated in the microsecond range by a preliminary experiment using LiTaO 3 e-o deflectors.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.1983.1071901