TY - JOUR
T1 - An Acoustooptical Directional Coupler for an Optical Time-Domain Reflectometer
AU - Horiguchi, Tsuneo
AU - Nakazawa, Masataka
AU - Tokuda, Masamitsu
AU - Uchida, Naoya
PY - 1984/4
Y1 - 1984/4
N2 - An optical directional coupler in which a TeO2 acoustooptical deflector (AOD) is employed has been designed and developed for use in an optical time-domain reflectometer (OTDR). A low roundtrip insertion loss of 4.6 dB and low crosstalk of below -48 dB were attained for the fabricated coupler. Signals of large amplitude, such as Fresnel reflection, could be suppressed to less than - 33 dB by switching of the optical directional coupler. Amplitude fluctuation of the backscattered signal due to polarization fluctuation in single-mode fibers is reduced to a negligible extent. Copyright é 1984 by The Institute of Electrical and Electronics Engineers, Inc.
AB - An optical directional coupler in which a TeO2 acoustooptical deflector (AOD) is employed has been designed and developed for use in an optical time-domain reflectometer (OTDR). A low roundtrip insertion loss of 4.6 dB and low crosstalk of below -48 dB were attained for the fabricated coupler. Signals of large amplitude, such as Fresnel reflection, could be suppressed to less than - 33 dB by switching of the optical directional coupler. Amplitude fluctuation of the backscattered signal due to polarization fluctuation in single-mode fibers is reduced to a negligible extent. Copyright é 1984 by The Institute of Electrical and Electronics Engineers, Inc.
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U2 - 10.1109/JLT.1984.1073589
DO - 10.1109/JLT.1984.1073589
M3 - Article
AN - SCOPUS:0021406519
SN - 0733-8724
VL - 2
SP - 108
EP - 115
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 2
ER -