John Redvers Clowes

White light 50 W supercontinuum: roadmap to kW truly white lasers

In this paper we demonstrate a 51.5 W supercontinuum spanning 405 nm to 2660 nm with endlessly single mode output, and a blue enhanced 33.6 W supercontinuum spanning 380 nm to 2575 nm. We also show results combining 7 SC laser outputs, resulting in 26 W visible power. This method of combining fiber laser outputs can be scaled up, creating a pathway to kW level supercontinuum fiber lasers with greater than 95 W in the visible part of the spectrum.

Supercontinuum laser sources future await wide applications

Recent advances in supercontinuum generation technology have enabled the development of lasers with higher power and broader spectral content, allowing exploitation of these light sources in a range of new and exciting application areas.

Technology Roadmap for Supercontinuum Fiber Lasers

The past decade has seen an order of magnitude increase in power levels from supercontinuum lasers. Here we describe how this has been achieved, and we present the technology roadmap for these light sources.

Compact 85 fs frequency doubled 810 nm fiber system with 60 mW of average power

We demonstrate a sub-100 fs frequency doubled fiber laser operating at 810 nm. The laser produces 60 mW of average power at a repetition rate of 50 MHz. Extremely low amplitude noise (below 0.1%) and compact size makes this source ideal replacement for low power ultrafast Ti:Spphire lasers.

Upgradable sensing systems for the oil and gas industry

Information from the reservoir can be used throughout its lifetime to make significant improvements to yield and operating costs. Traditional sensing methods, such as well logging using wireline techniques and installation of permanent gauges (both electronic and fiber optic sensors such as fiber Bragg grating sensors) either provide occasional snapshots of the reservoir or provide sensing systems which become dated and which usually do not survive over the lifetime of the reservoir. This paper reviews methods of instrumenting oil wells with sensing systems that can be upgraded throughout the lifetime of the reservoir. Applications shown include pressure sensors and distributed temperature sensing.