论文信息 - An integrated optical waveguide E-field sensor with segmental electrodes

An integrated optical waveguide E-field sensor with segmental electrodes

An integrated optical waveguide E-field sensor with segmental electrodes using a proton-exchanged LiNbO/sub 3/ Mach-Zehnder (M-Z) interferometer has been designed and fabricated. The device consists of ten sections of electrode and its structure size is 60/spl times/6/spl times/0.5 mm. Experimental results show that the minimum detectable electric field is 60 mV/m with the bandwidth of 10 MHz to 3.6 GHz in the detecting condition for optical power, which has a signal-to-noise ratio of 5 dB.

Qiu Kun | Chen Fushen | C. Fu-shen | Qiu Kun

[1] Tadashi Ichikawa,et al. Fabrication and Characterization of a Retroreflective Type of Practical LiNbO3 Voltage Sensor Operating in the Range of 6 Hz to 2 GHz , 2000 .

[2] Masamitsu Tokuda,et al. Development of Optical Isotropic E-Field Sensor Operating More than 10 GHz Using Mach-Zehnder Interferometers , 2002 .

[3] Osamu Ogawa,et al. A guided-wave optical electric field sensor with improved temperature stability , 1999 .

[4] C. H. Bulmer,et al. Sensitive, highly linear lithium niobate interferometers for electromagnetic field sensing , 1988 .

[5] B. Schuppert,et al. Integrated optical E-field probes with segmented modulator electrodes , 1994 .

[6] B. Schuppert,et al. Electro-optical E-field sensor with optimised electrode structure , 1992 .