Minimizing dc drift in LiNbO3 waveguide devices

Gee, C. M.; Thurmond, G. D.; Blauvelt, H.; Yen, H. W.
August 1985
Applied Physics Letters;8/1/1985, Vol. 47 Issue 3, p211
Academic Journal
improved stability against electrical dc bias drift has been demonstrated in LiNbO[sub 3] electro-optic modulators by replacing the commonly used SiO[sub 2] buffer layer with indium tin oxide (ITO), a transparent conductor. The long term drift of the modulators having an ITO buffer layer with a sheet resistivity of ∼20 Ω/... is less than 0.3% in 8 h. The mechanism of the dc drift phenomenon is discussed using an electrical equivalent circuit model of the modulator.


Related Articles

  • 4×4 Ti:LiNbO3 integrated-optical crossbar switch array. McCaughan, L.; Bogert, G. A. // Applied Physics Letters;8/15/1985, Vol. 47 Issue 4, p348 

    We have fabricated the largest integrated optical switch array to date—a square array of 16 interconnected Ti:LiNbO[sub 3] directional coupler electro-optical switches. The devices operate at ∼11 V and have 4.6-15-dB fiber-device-fiber insertion loss and extinction ratios from -12 to...

  • Channel waveguides in electro-optic polymers using a photopolymer cladding technique. Ashley, Paul R.; Tumolillo, Thomas A. // Applied Physics Letters;3/4/1991, Vol. 58 Issue 9, p884 

    Describes a fabrication technique for forming channel waveguides in organic electro-optic polymer materials. Use of projection printing to directly expose inverted ridge channel patterns in an ultraviolet curing optical epoxy cladding layer; Minimization of wall roughness and non-requirement of...

  • Comparison of the electro-optic coefficient r[sub 33] in well-defined phases of proton exchanged LiNbO[sub 3] waveguides. Méndez, A.; de la Paliza, G.; García-Cabañes, A.; Cabrera, J.M. // Applied Physics B: Lasers & Optics;2001, Vol. 73 Issue 5/6, p485 

    The electro-optic coefficient, r[sub 33] , of proton exchanged LiNbO[sub 3] waveguides has been measured in well-defined phases of the exchanged layer. Namely, in two low index-jump α-phases, i.e. unannealed soft-exchanged (SPE) and annealed (APE) guides, and in two high index-jump phases,...

  • Electro-optic tunable optical isolator in periodically poled LiNbO3. Xiao-shi Qian; Hao Wu; Qin Wang; Zi-Yan Yu; Fei Xu; Yan-Qing Lu; Yan-Feng Chen // Journal of Applied Physics;Mar2011, Vol. 109 Issue 5, p053111 

    We proposed a design of a tunable optical isolator. The electro-optic (EO) effects in periodically poled lithium niobate (PPLN) with a defect were studied. EO effects and second harmonic generation (SHG) allow three-wave coupling in this nonlinear optics process. A defect is inserted in an...

  • Optical heterodyne detection of 60 GHz electro-optic modulation from polymer waveguide modulators. Wenshen Wang; Datong Chen // Applied Physics Letters;9/25/1995, Vol. 67 Issue 13, p1806 

    Examines the use of optic heterodyne techniques in demonstrating electro optic modulation from polymer waveguide modulators. Structure of the 60 GHZ polymer E-O phase modulator; Advantages of optical heterodyne detection; Use of semiconductor power amplifier in determining the microwave driving...

  • High performance electro-optic polymer waveguide device. Hyang-Mok Lee; Wol-Yon Hwang // Applied Physics Letters;12/29/1997, Vol. 71 Issue 26, p3779 

    Assesses the performance of electro-optic modulators. Selection of materials in the electro-optic waveguide devices; Characteristic of the cladding material in relation to optical insertion loss; Response of the Mach-Zehnder modulator to electrical input.

  • Nonlinear optical efficient LiNbO... waveguides proton exchanged in benzoic acid vapor: Effect of... Rams, J.; Cabrera, J. M. // Journal of Applied Physics;2/1/1999, Vol. 85 Issue 3, p1322 

    Presents information on a study which focused on the effect of the vapor pressure on the properties of LiNbO... waveguides proton exchanged in benzoic acid vapor. Experimental details; Results and discussion.

  • Refractive index profiles of LiB[sub 3]O[sub 5] waveguides formed by MeV He ion irradiation. Wang, Ke-Ming; Hu, Hui; Lu, Fei; Chen, Feng; Shi, Bo-Rong; Ma, Chang-Qin; Lu, Qing-Ming; Shen, Ding-Yu // Journal of Applied Physics;10/1/2002, Vol. 92 Issue 7, p3551 

    LiB[sub 3]O[sub 5] crystals were irradiated with MeV He[sup +] ions of different fluences and energies. The refractive index profiles, n[sub x], n[sub y], and n[sub z] in LiB[sub 3]O[sub 5] waveguides are given. The results show that: (1) the thickness of the ion irradiated waveguides can be...

  • DCM-polyimide system for triple-stack poled polymer electro-optic devices. Ermer, S.; Valley, J.F. // Applied Physics Letters;11/9/1992, Vol. 61 Issue 19, p2272 

    Presents an all-polyimide system suitable for fabrication of electro-optic wave guide devices on silicon substrates. Source of cladding layers; Components of the electro-optic material; Fabrication of an all-polyimide Mach-Zehnder modulator.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics