Browse > Article

A Study on Electrooptic $Ti:LiNbO_3$ Mach-Zehnder integrated-optic interferometers for Electric-Field Measurement  

Jung, Hong-Sik (Dept. of Electronic & Electrical Eng., Hongik University)
Publication Information
Abstract
Integrated-optic symmetric/asymmetric Mach-Zehnder interferometers at $1.3{\mu}m$ wavelength were studied as sensing part for electric-field measurement system. The devices were simulated based on the BPM software and fabricated utilizing Ti-diffused $LiNbO_3$ channel optical waveguides and lumped-type electrodes. A half-wave voltage of $V_{\pi}$=6.6V and modulation depth of 100% and 75% for a symmetric structure were measured for 200Hz and 1kHz electrical signal bandwidth, respectively. By the way, almost half-maximum power transmission was observed for asymmetric interferometers with ${\pi}$/2 intrinsic phase difference. Expected experimental measurements were observed for 1kHz electrical signal bandwidth.
Keywords
electric-field optical sensor; Mach-Zehnder interferometer; electrooptic effect; $Ti:LiNbO_3$ optical waveguide; integrated-optic device;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Serigne, et al, "Isotropic Pattern of an Optical Electromagnetic Field Probe Based Upon Mach-Zehnder Interferometer," IEEE Trans. on Electromagnetic Compatibility, Vol. 39, No. 1, pp. 61-63, Feb. 1997.   DOI   ScienceOn
2 Y. J. Rao, "Eletro-optic electric field sensor based on periodically poled $LiNbO_3$," Electronics Lett., Vol. 35, No. 7, pp. 596-597, Apr. 1999.   DOI   ScienceOn
3 OptiBPM 9.0 (Waveguide Optics Design Software, Optiwave.
4 Hiroshi Nishihara, et al, "Optical Integrated Circuits": pp. 286-289, McGraw-Hill, 1985.
5 Gerd Keiser, Optical Fiber Communication, 4th edition, pp. 222-245, McGraw-Hill.
6 David H. Naghski, et al, "An integrated Photonic Mach-Zehnder Interferometer with No Electrodes for Sensing Electric Fields," J. Lightwave Technol., Vol. 12, No. 6, pp. 1092-1098, June 1994.   DOI   ScienceOn
7 Lionel Duvillaret, et al, "Electro-optic sensors for electric field measurements. I. Theoretical comparision among different modulation techniques," J. Opt. Soc. Am. B, Vol. 19, No. 11, pp. 2692-2703, Nov. 2002.   DOI   ScienceOn
8 C. H. Bulmer and W. K. Burns, "Linear Interferometric Modulators in Ti:$LiNbO_3$," J. Lightwave Technol., Vol. LT-2, No. 4, pp. 512-521, Aug. 1984.
9 Tsung-Hsin Lee, et al, "Electromagnetic Field Sensor Using Mach-Zehnder Waveguide Modulator," Microwave and Optical Technol. Lett., Vol. 48, No. 9, pp. 1897-1899, Sep. 2006.   DOI   ScienceOn
10 Tsung-Hsin Lee, et al, "Integrated $LiNbO_3$ Electrooptical Electromagnetic Field Sensor," Microwave and Optical Technol. Lett. Vol. 49, No. 9, pp. 2312-2314, Sep. 2007.   DOI   ScienceOn