Centre for Photonic Devices and Sensors

LCOS SLM and WSS

6 results

Phase Flicker Induced Sharpness Deterioration of Holographic Images in LCoS

Phase Flicker Induced Sharpness Deterioration of Holographic Images in LCoSPhase flicker in LCoS devices can decrease the effective phase modulation resolution by introducing overlapped phase oscillation between adjacent modulated grey levels, thus degrading the performance of LCoS devices in various applications. Nevertheless, the effect of phase …
LC Diffractive Optical Elements with High PB Phase Accuracy for Holographic Displays

LC Diffractive Optical Elements with High PB Phase Accuracy for Holographic DisplaysDiffractive optical elements (DOE) are important light manipulating components in modern imaging and display scenarios. However, the weight of the bulk material of traditional DOEs becomes more and more critical in novel optical systems. Meanwhile, the fabrication o…
Optical Switch

Optical SwitchConventional Wavelength Selective Switches (WSSs) steer light in one dimension. This fundamentally limits the number of output ports.A typical WSS has one input fibre, and multiple output fibres. Light is launched into free space from the input fibre, at the centre of a linear fibre array. Relay lenses project the light onto a Liquid …
Investigation of Optical Couplers for the Application in Optical Bus Systems for Autonomous Cars

Investigation of Optical Couplers for the Application in Optical Bus Systems for Autonomous CarsWith more and more infotainment facilities and driving assistance systems in cars, there rises the demand of a large bandwidth of data communication and a low-cost data network for the communications. Optical data bus is a good solution to meet these req…
Transparent Conductors(TC) for Middle Infrared(Mid-IR) Liquid Crystal Spatial Light Modulators (LC-SLM)

Transparent Conductors(TC) for Middle Infrared(Mid-IR) Liquid Crystal Spatial Light Modulators (LC-SLM)In the Mid-IR(λ = 2 to 5 μm) range, LC-SLMs can offer a low-cost, non-mechanical and compact alternative to the gimbaled mirrors used currently for Mid-IR laser beam-steering. Unfortunately typical indium tin oxide (ITO) TC layers have a transmitt…
A High-Resolution Optically Addressed Spatial Light Modulator Based on ZnO Nanoparticles

A High-Resolution Optically Addressed Spatial Light Modulator Based on ZnO NanoparticlesAn optically addressed spatial light modulator (OASLM) can modulate the wavefront of a read light by displaying a phase pattern or a hologram configured by the intensity distribution of a write light. Using ZnO nanoparticles (NPs) as a novel photoconductor, a hi…