NDLI: Travelling-wave integrated-optical modulator with spread frequency response

Content Provider	IEEE Xplore Digital Library
Author	Zolotov, E.M. Pelekhaty, V.N. Tevlykaev, R.F.
Copyright Year	1990
Description	Author affiliation: Gen. Phys. Inst., Acad. of Sci., Moscow, USSR (Zolotov, E.M.; Pelekhaty, V.N.; Tevlykaev, R.F.)
Abstract	Summary form only given. The authors fabricated planar electrode structures for travelling-wave integrated optical modulators which allow the spread of the FR (frequency response) and simultaneous decrease of drive power in a fixed-frequency band. This is achieved by a smooth change of value and sign or electrooptical interaction according to the appropriate functional dependence, which, in the absence of microwave losses, is related by Fourier transform to the magnitude FR (MFR) and phase FR (PFR) of the modulator. Taking into account a rectangular MFR and quadratic PFR, a chirped oscillating dependence of the electrooptical interaction efficiency along the waveguide was obtained by inverse Fourier transform. A 1-cm-long triangular toothed electrode structure makes it possible to obtain a uniform broadband MFR up to 160 GHz with six times less drive power than with a conventional electrode, and an 8-mm-long trapezoidal toothed electrode structure makes it possible to obtain a uniform bandpass modulation in the 80-160-GHz range.<>
File Size	39646
File Format	PDF
DOI	10.1109/ICC.1990.117067
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-04-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency modulation Electrodes Optical modulation Fourier transforms Integrated optics Frequency response Optical losses Phase modulation Chirp modulation Electrooptic modulators
Content Type	Text
Resource Type	Article

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