A first pump laser is provided for generating a first optical pump signal, and a first optical multiplexer is adapted to receive and combine the first optical input data signal and the first pump signal.

Optical, electron-beam and electrical injection pumping of the medium is disclosed.

Optically pumped maser are described.

An optical network includes optically pumped waveguide amplifiers (23).

By using the optical waveguide (2) to distribute the pump power to the amplifiers Ai multiple optical pump sources are avoided.

The optical pump source is coupled by one of the one or more optical couplers to deliver pump light to the optical medium.

An electric-absorption modulator may be sandwiched between the FCSEL and the VCSEL, and allows photons to pass through from the FCSEL to the VCSEL when in one state and attenuates photons before reaching the VCSEL when in another state.

The method includes generating an optical pump beam pulse and directing the optical pump beam pulse to a surface of a sample.

The present invention relates to an optical assembly for optically pumping an active medium (9), with which a symmetrization and/or homogenization of optical radiation of a light source used for pumping is achieved.

A submarine optical repeater that shares optical pump power in multiple gain stages such that approximately the same wavelengths of optical pump is provided to each of the gain stages.

The method (300) further includes optically pumping (330) the coupled endohedral metallofullerene by introducing an optical pump into the optical waveguide.

The invention concerns a laser optical pumping module, comprising a cylindrical reflector on a polygonal base.

The first optical multiplexer thus forms a first composite optical signal that includes the first pump signal and the first optical input data signal.

The invention includes both optically and electrically pumped embodiments.

A laser system includes an optically-pumped semiconductor laser OPS-laser and an optical fiber.