Hybrid waveguides

As formerly reported[ 1 ] [2] we prepared thin single crystal MNA in the narrow tapered gap of faced substrates as a hybrid waveguide structure together with previously rf sputtered Corning... 

The v cal integrated polymer device fabricated was a vartically stacked ED-polymer directional coupler (27). The nonlinear optical matmal used was a bisazo-dye functionalized EO polymer, 3RDCVXY. A standard REB process was used to fabricate the hybrid waveguides. Using die vertically stacked directional coupler, optical coupling similar to that of in-plane directional coupler was attained. 

This hybrid waveguide fabrication technique can be applied for an optical sampling device and a compact all-optical switching device. The application of hybrid waveguides will be key in optical signal processing technologies. 

Figure 17-2. Modal dispersion curves of a sol-gel hybrid waveguide the curves on the right side refer to the 0.6 fim wavelength, the ones on die left to the 1.5 nm wavelength.

Wang X., Xu L., Li D., Liu L., Wang W. Themio-optic properties of sol-gel-fabricated organic-inorganic hybrid waveguides. J. Appl. Phys. 2003 94 4228-4230 Weber H.P., Dunn F.A., Leibolt W.N. Loss measurements in thin-film optical waveguides. Appl. Opt. 1973 12 755-757... 

Sasaki et al. (I988) used a hybrid waveguide composed from PDA LB film, glass waveguide and a silica substrate. Two types of optical listability they have observed one originating from coupling between a prism and... 

PDA hybrid waveguide. The second one they observed in the hybrid waveguide with a nonlinear distributed Bragg reflector of the PDA top layer. In both cases input-output curves with hysteresis characteristics were obtained. However, as state the authors, they are not sure whether the observed optical bistability is electronic, or thermal in origin. 

Polina R.J., Klainer S.M., A field-hardened, optical waveguide hybrid integrated-circuit, multi-sensor chemical probe and its chemistry, Proc. SPIE-Int. Soc. Opt. Eng. 1997 3105 71... 

Enami, Y. Peyghambarian, N. Kawazu, M. Jen, A. K. Y., Hybrid electro optic polymer and selectively buried sol gel waveguides, Appl. Phys. Lett. 2003, 82,490 492... 

Fig. 7 presents another example of a very high-contrast waveguide - a rectangular buried waveguide covered by a gold layer. Strong hybridization of the waveguide mode with the antisymmetric surface plasmon is clearly manifested. 

Moore P, Clayton J (2003) To affinity and beyond. Nature 426 725-731 Budach W, Abel AP, Bruno AP et al (1999) Planar waveguides as high performance sensing platforms for fluorescence-based multiplexed oligonucleotide hybridization assays. Anal Chem 71 3347-3355... 

Fig. 1 (a) Schematic representation of waveguide mode-surface plasmon coupling via k-vector match into a hybrid mode, (b) Experimental scheme of a planar waveguide with a small gold spot on its surface for transmission experiments... 

---