This chapter reviews the first ten years of interactive electro-holographic displays from its first instance in 1990 through innovations in computational approaches and optical modulation schemes. The enormous bandwidths required to image three-dimensional (3-D) holographic images interactively are examined, along with descriptions of techniques used to overcome the limitations placed upon frin...

In this work, we present the design, fabrication, and characterization of a surface-normal plasmonic modulator using sub-wavelength metal grating. The device consists of a 1.77 μm efficiently poled electro-optic polymer film, which is sandwiched between a plasmonic grating and an indium–tin oxide film. A strong Fano resonance with a sharp plasmonic bandgap at 1522 nm wavelength was observed and...

We propose a new method to detect ultrasmall nonreciprocal phase shifts in solids based on the Sagnac interferometer combined with internal optical modulation of the absorption. The Sagnac interferometer with heterodyne balanced detection is expected to enable shot-noise-limited detection of phase shift as a result of its insensitivity to frequency and amplitude fluctuations of the laser. The l...

An analytical model for the depletion length of modulation instability in single-mode optical fibres is proposed. The model gives the possibility to determine the maximum sensing distance that distributed optical fibre sensors can reach before being limited by the pump depletion induced by modulation instability. The important role of the noise level in the evolution of both modulation instabil...

Indoor optical wireless systems provide an attractive alternative for realizing next generation Wireless Local Area Networks (WLANs). In this paper, the potential of non-directed, equalized optical wireless systems is theoretically investigated, taking into account the indoor channel impulse response and the characteristics of ambient light noise and thermal noise at the receiver. Three modulat...

We have theoretically investigated the effects of self-phase-modulation on multiphoton nonlinear optical processes in semiconductors, utilizing multiple-order perturbation theory based on a set of coupled nonlinearwave equations. Our results clearly demonstrate that the self-phase-modulation in the fundamental field induces spectral broadening in the harmonic fields ~cross-phase modulation! and...

We report on UBVRI polarimetry of the recently identified Intermediate Polar 1WGA J1958.2+3232, carried out on 2000 August, 4-6 at the Nordic Optical Telescope. Circular polarization was detected in R and I bands with an increasing absolute mean value with wavelength. There is evidence of possible modulation of the circular polarization at twice the previously reported white dwarf spin period, ...

We propose and experimentally demonstrate a novel modulation scheme called superposed pulse amplitude modulation (SPAM) which is low-cost, insensitive to non-linearity of light emitting diode (LED). Multiple optical pulses transmit parallelly from different spatial position in the LED array and overlap linearly in free space to realize SPAM. With LED arrangement, the experimental results show t...

Digital micro-mirror devices (DMDs) have recently emerged as practical spatial light modulators (SLMs) for applications in photonics, primarily due to their modulation rates, which exceed by several orders of magnitude those of the already well-established nematic liquid crystal (LC)-based SLMs. This, however, comes at the expense of limited modulation depth and diffraction efficiency. Here we ...

At both the ends of transmitter and receiver the realization of terabit per second high speed and high spectralefficiency optical transmission is required. This paper describes the use of much lower speed electronics and optoelectronics through parallel processing of coherent optical frequency combs .The coherent and parallel processing enables electrical-tooptical and optical-to-electrical (E/...