Optical bistability, regenerative oscillation, and monostable pulse generation in a liquid crystal bistable optical device.
A hybrid bistable optical device is realized by using a simple liquid crystal light modulator based on the dynamic scattering. Its low driving voltage and high transmission for the ON state make the amplification of feedback signal unnecessary and may facilitate a 2-D spatial array of devices. Regenerative oscillation and monostable pulse generation have also been demonstrated to study its transient behavior.
Thermally induced optical multistability with a beam splitter in the degenerate two-beam interferometer configuration
Abstract Thermally induced optical multistability has been obtained with light of arbitrary wavelength in a cavity structure with strong interference effects on the input mirror absorption. The system constitutes the degenerate version of the recently introduced two-beam interferometric bistable devices based on a beam splitter yielding in-phase interference outputs.
Bistable optical systems based on a Pockels cell.
The performance of a bistable intensity modulator based on a Pockels cell can be optimized if a voltage proportional to a linear combination of input and output intensities is applied to the Pockels cell. The bistable response can more closely approximate a step function. The output-optical-power regulation can be improved at levels close to the input-power level. The operating point of an ultralinear modulator can be maintained at the most linear portion of the response curve. Some of the above features are demonstrated experimentally. Analogous modifications can be made to advantage on other bistable optical systems.