TITLE

Linear 1×2 directional coupler for electromagnetic field detection

AUTHOR(S)
Howerton, Marta McWright; Bulmer, Catherine H.; Burns, William K.
PUB. DATE
May 1988
SOURCE
Applied Physics Letters;5/30/1988, Vol. 52 Issue 22, p1850
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A 1×2 directional coupler which can be used as an integrated optical electromagnetic field detector is described. Modulators have been formed from titanium-indiffused lithium niobate waveguides operating at the 1.3 μm wavelength. Linear dynamic ranges of 74.3 dB with 190 μW light and 76.3 dB with 760 μW light were observed for separate devices. Voltage sensitivity measurements are in good agreement with theoretical predictions. A 3.1 μV rms sensitivity was obtained for a device with a 10 mm electrode length.
ACCESSION #
9826939

 

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