In this work we report an ultracompact (8.7 μm x 10.6 μm) integrated planar photonic crystal polarization beam splitter in silicon-on-insulator platform with 18.6 dB and 11.1 dB extinction ratio at a wavelength of 1520 nm at the outputs for transverse-magnetic and transverse-electric polarization, respectively. The physical separation of both polarization states is achieved by negative and posi...

The H> and V> outputs of a Polarizing Beam Splitter can be combined to restore the original input superposition state, as long as no knowledge is obtained regarding the path taken through the PBS. Using this principle, it should be possible to create entangled photons from the identical H> and V> components of different polarization entangled photons. These “Frankenstein” photons will also be p...

The transmittance, ellipsometric parameters, and depolarization of transmission, diffraction, and reflection of two volume holographic gratings (VHGs) are measured at a wavelength of 632.8 nm. The measured data are in good agreement with the theoretical simulated results, which demonstrated the correlation between the diffraction strength and the polarization properties of a VHG. Vector electro...

A novel design for an integrated passive polarization splitter/converter combination is presented. The device consists of a Mach–Zehnder interferometer with polarization converters in both arms. The device is analyzed using the transfer matrix method and fabricated in InGaAsP–InP. Measurement results show a splitting ratio of approximately 10 dB and a conversion of>90%. This device can be monol...

To test different properties of plasma radiation, different ECE instruments like Michelson interferometer and Radiometer are placed at a distance from the front end optics. To guide the radiation source from the front end optics to the measuring instruments, power/beam splitter box or power switching techniques are used. In this paper, numerical simulation of different techniques for power and ...

The holographic optical switches are three-dimensional devices, having the characteristics of flexibility and compactness. The procedure to realize a 4×4 active splitter and active combiner network with holographic optical switches is discussed in detail. After optimum design, the unique features of compactness and flexibility of holographic optical switches not only significantly saves space o...

We demonstrate a polarization splitter rotator (PSR) based on multimode waveguide grating (MWG) silicon-on-insulator (SOI) platform. Bloch mode hybridization in mini-stopband is exploited to achieve high conversion efficiency. The fabricated device yields extinction ratio of > 53 dB and 31 dB, low crosstalk < −26.4 −40 for the injected TE0 TM0 mode, with average insertion loss 1.2 1.5 wav...

Simulation of light propagation within nematic liquid-crystal (LC) devices is considered, of which the director is aligned normal to the z axis. A three-dimensional full-vector finite-difference beam propagation method for an anisotropic medium is presented and an alternating direction implicit scheme is adopted. Simulations of light propagation in a bulk polarization converter, a waveguide wit...