Mechano-optical waveguide on-off intensity modulator.

Modulation efficiency of a LiNbO3 waveguide electro-optic intensity modulator operating at high microwave frequency.

The modulation efficiency, at high-frequency microwave modulation, of a LiNbO(3) waveguide electro-optic modulator is shown to be degraded severely, especially when it is used as a frequency translator in a Brillouin-distributed fiber-sensing system. We derive an analytical expression for this attenuation regarding the phase-velocity mismatch and the impedance mismatch during the modulation pro...

Numerical investigation and optimization of a mechano - optical sensor based on a grated waveguide optical cavity

A novel mechano-optical sensor based on read-out with a Si3N4 grated waveguide

Microcantilever-based sensors can be used to detect molecular absorption of, for example, hydrogen gas, which causes changes in the surface stress, leading to deflection of the cantilever. Such a deflection can be determined by means of optical beam deflection, capacitance-, or piezo-resistance based readout. We have recently proposed a compact integrated mechano-optical sensor using a novel an...

Traveling-wave Modulator Using a Gelatin-based Eo Polymer Waveguide

An electrooptic intensity modulator using a gelatin-based EO polymer waveguide has been built and characterized. This EO modulator is constructed from a nitrophenol/gelatin guest/host poled polymer system. V and "33 of 25 V and 38 pm/V are obtained, respectively. This is the first demonstration of an active EO device using electrooptic gelatin. Integration of the modulator with a traveling-wave...

Bent-waveguide Devices and Mechano-optical Switches