The Bragg matching and the uniformity of Bragg diffraction efficiencies of multiple volume holographic gratings (MVHGs), which were used for wavelength demultiplexing devices in optical communication based on all wave optical fiber, were theoretically studied and quantitatively analyzed.

Any theory has its limits of applicability including the phase-matching condition.

With compounding of two pieces of off-axis holographic lens, the anaberrational design is carried out by this method under Bragg conditions.

The holographic lens, which is designed according to Bragg condition to eliminate aberrations, has both high efficiency and low aberration, and can be used in a certain narrow-band condition.

In this thesis, two research subjects are involved: one is the theoretical and experimental investigation of one-dimensional PPS and their induced waveguides, and the other is the determination of the optimal phase-matching for SHG in biaxial crystals.

Impedance matching condition of electromagnetic absorbing material

A matching condition (such that the high-frequency waves are absorbed) was used at the interface to get an approximate solution.

The result was generalized to the case that the systems may have the nonlinear source term satisfying the matching condition.