Wideband integrated magnetooptic frequency shifter and modulator at X-band

Author

Pu, Y. ; Tsai, C.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA

fYear

1992

Firstpage

161

Abstract

A new wideband electronically tunable integrated optical frequency shifting scheme that utilizes noncollinear guided-wave magnetooptic (MO) Bragg diffraction from magnetostatic waves (MSWs) in a bismuth-doped yttrium-iron-garnet/gadolinium-gallium-garnet (YIG/GGG) waveguide. Constancy in the output angle of the frequency-shifted light beam, irrespective of the amount of frequency shift, is facilitated by synchronous tuning of the carrier frequency of the MSWs and the bias magnetic field by means of an electronic synchronizer. The device, operating at the optical wavelength of 1.302 μm with carrier frequency centered at X-band, demonstrates desirable characteristics including large frequency shift, very large bandwidth, large dynamic range, and fast tuning speed

Keywords

bismuth compounds; gadolinium compounds; garnets; integrated optics; magneto-optical devices; magnetostatic wave devices; modulators; yttrium compounds; 1.302 micron; BiYFe5O12-GdGa5O12; BiYIG-GdGG; X-band; bandwidth; bias magnetic field; carrier frequency; dynamic range; electronic synchronizer; frequency-shifted light beam; integrated optical frequency shifting scheme; magnetooptic frequency shifter; magnetostatic waves; modulators; noncollinear guided-wave magneto-optic Bragg diffraction; output angle; synchronous tuning; tuning speed; Frequency modulation; Integrated optics; Magnetic modulators; Magnetostatic waves; Optical diffraction; Optical modulation; Optical tuning; Optical waveguides; Wideband; Yttrium;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1992. Proceedings., IEEE 1992

Conference_Location

Tucson, AZ

Print_ISBN

0-7803-0562-0

Type

conf

DOI

10.1109/ULTSYM.1992.276044

Filename

276044