Waveguides electro-active optical

Electro-Active Optical Waveguides Materials and Fabrication. 120... 

Broadband Spectroelectrochemical Interrogation of Molecular Thin Films by Single-Mode Electro-Active Integrated Optical Waveguides... 

Fig. 9 Electro-active planar single-mode optical waveguide. Adapted from [4] with permission from the America Chemical Society, copyright 1997...

An electro-active integrated optical waveguide (EA-lOW) with a separation of 8 mm between the input and output grating couplers was used to experimentally assess the sensitivity of EA-lOW-based measurements on surface-confined films. Measurements performed on adsorbed MB (e = 7,800 M cm at 633 nm) at a... 

These materials may also be included in guest-host or side-chain polymer systems, similar to those exploited in electro-optic polymer studies. This would improve processability for waveguide devices. The coefficients quoted above show that such a doped polymer could function at reasonable power levels and waveguide dimensions with an active region 1-2 mm long. 

While propagation loss in electro-optically active waveguides remains a great concern, typically the greatest contribution to device insertion loss comes from mode mismatch between silica fibers and electro-optic waveguides. At... 

Fig. 7 Experimental scheme of a LiNbOs waveguide with an electro-optical interrogation. Here, two electrodes are present, which allow to apply a potential across the electro-optically active waveguide. This leads to a change in the k-vector of the propagating waveguide mode. The transmission of either a single wavelength or a white light spectrum can be measured, as well as the phase between the transmitted single wavelength and a reference beam can be measured...

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