Fabrication of frequency spectrum synthesiser consisting of arrayed-waveguide grating pair and thermo-optic amplitude and phase controllers

Author

Okamoto, K. ; Kominato, T. ; Yamada, H. ; Goh, T.

Author_Institution

NTT Photonics Labs., Ibaraki, Japan

Volume

35

Issue

9

fYear

1999

fDate

4/29/1999 12:00:00 AM

Firstpage

733

Lastpage

734

Abstract

The fabrication is reported of an integrated-optic frequency spectrum synthesiser which is capable of shaping and encoding modelocked optical pulse waveforms by controlling the amplitude and phase of each line spectral component. The synthesiser consists of an arrayed-waveguide grating (AWG) pair for demultiplexing and multiplexing the spectral components and thermo-optic switches and phase shifters for arbitrarily patterning them. The dynamic range of the synthesiser is ~30 dB and the amplitude and phase resolutions are 0.1-0.2 dB and π/100, respectively

Keywords

demultiplexing equipment; diffraction gratings; frequency synthesizers; integrated optics; multiplexing equipment; optical fabrication; optical phase shifters; optical pulse shaping; optical switches; optical waveguides; photonic switching systems; arrayed-waveguide grating pair; demultiplexing; fabrication; frequency spectrum synthesiser; integrated-optic type; modelocked optical pulse waveforms; multiplexing; optical pulse encoding; optical pulse shaping; thermo-optic amplitude controller; thermo-optic phase controller; thermo-optic phase shifters; thermo-optic switches;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19990518

Filename

769857