One of the nanosecond pulse output strategies for fiber lasers with controlled frequency is
active Q-switching. Low-cost, high-power efficiency, stable cavity, and customizable pulse …

Refractive index fronts propagating in waveguides are special spatiotemporal perturbations.
The interaction of light with such fronts can be described in terms of an indirect transition …

Optical Fiber Sensors: Advanced Techniques and Applications describes the physical
principles of, and latest developments in, optical fiber sensors. Providing a fundamental …

The principles of optical and optical fiber current sensor technology have been known for
some considerable time, and some of the earliest papers on optical fibre measurement …

An apparatus utilizes a two-mode optical waveguide with a non-circular core to provide
stable spatial inten sity patterns in both propagation modes for light propa gating therein …

A mode converter comprises an a-axis LiNbO 3 optical fiber exhibiting a ferroelectric bi-
domain structure. The fiber is subject to an electrical field that induces a+ π/2 phase …

We demonstrate a novel all-fiber acousto-optic tunable notch filter based on coupling to
cladding modes in a single-mode fiber. The device has the advantage of low loss (< 0.1 dB) …

Acousto-optic interaction in optical fiber is examined from the perspective of copropagating
optical and acoustic vortex modes. Calculation of the acousto-optic coupling coefficient …

The four complex, almost degenerate, second-order eigenmodes of a two-mode fiber having
a circular core are reduced to two nondegenerate, linearly polarized second-order …

Acoustic modes propagating in cylindrical solid rods are considered. A review of the
properties of several mode groups is given, and computed results are shown for a wide …