Spi Lasers UK Limited

Other

Southampton Photonics Limited

Mikhail Nicholaos Zervas

David Neil Payne

Malcolm Paul Varnham

Michael Kevan Durkin

William Andrew Clarkson

Lars Johan Albinsson Nilsson

Paul William Turner

Apparatus for providing optical radiation () comprising a pump array () for providing pump radiation (), a first pump combiner (), and a waveguide (), wherein the pump radiation () from the pump array () is coupled into the waveguide () via the first pump combiner (), and wherein the waveguide () comprises a pump guide () for guiding the pump radiation (), and a gain medium () which emits the optical radiation () when it is pumped by the pump radiation ().

Apparatus for providing optical radiation

Apparatus for providing optical radiation includes a pump source and at least one first amplifying waveguide. The first amplifying waveguide emits optical radiation in excess of 1400 nm when pumped by the pump source. In one embodiment, the pump source can include a plurality of laser diodes and a plurality of second amplifying waveguides. In this arrangement the first amplifying waveguide is pumped by the second amplifying waveguides, the second amplifying waveguides are pumped by the laser diodes, and the second amplifying waveguides are configured to improve the beam quality of radiation emitted by the laser diodes.

Eye safe high power fibre laser

Apparatus for filtering optical radiation, which apparatus comprises a waveguide (), and which waveguide () comprises a grating () having a first reflection wavelength band () having a first average wavelength () and a first group delay (), and a second reflection wavelength band () having a second average wavelength () and a second group delay (), wherein the first group delay () and the second group delay () are different in at least a portion of the second reflection wavelength band ().

Optical multi-band device with grating

Growing community of inventors

Southampton, United Kingdom

Mikhail Nicholaos Zervas