Further information can be obtained from Download a PDF of our prospectus or order a printed copy to be delivered to your door. This relatively new regime of operation has opened up a wealth of new possibilities including the opportunity to study some new and interesting aspects of laser physics, and to develop some novel, high-power solid-state and fibre sources with important applications potential. If you have enough stripes, the grating acts like a very efficient mirror.Our pump source is a cheap diode laser. The Fibre Laser One of the most common types of fibre lasers is the Erbium-Doped Fibre Laser.We use an otherwise-normal optical fibre,made out of silica glass. Starting off as a ‘spin-out’ from the University of Southampton’s Optoelectronics Research Centre, the company has grown into one of the global market leaders in Pulsed and CW Fiber Lasers.

This project will explore novel approaches for generating hollow laser beams and other types of exotic beams directly in in fibre lasers and solid-state lasers using nanostructured optical materials. Website Design by Pixel Cottage. NKT Photonics, the leading supplier of high-performance fiber lasers, fiber … When that photon passes by another electron in the meta-stable state, it encourages it to drop down and emit another photon. We add to it very small amounts of the rare-earth element Erbium. Further information can be obtained from Laser modes with a doughnut-shaped beam profile can have many unique properties, including axially-symmetric polarisation (azimuthal or radial) or orbital angular momentum. Read More. This way, the pump beam bounces around inside the fibre. Researchers from the University of Southampton, UK, claim to have developed the most powerful fiber laser, based on a single strand of fiber, to date. It also boasts a slope efficiency of 83% and near diffraction-limited beam quality. In spite of their attractive properties, generating these beams with the required purity and at high power levels is very challenging. This is 'stimulated emission', as the photons are stimulating the electrons to emit more photons.Because of the way the photons are encouraging one another into existence, they are all the same colour, and they are all in step with one another. However, electrons being 'excited' to a higher state and dropping down gain doesn't happen naturally, at least not often enough to notice, so we need to make it happen.First, we push electrons up into a higher orbit (this is called pumping). Pressbrake and precision folding. Moreover, significant power scaling advantages can be gained by moving from traditional ytterbium-doped fibre lasers operating in the one-micron band to the two-micron band. Registered office: Unit 16, Woodmans Farm, Curdridge, Southampton, SO32 2BH. The alternative is to bounce it between mirrors, but these need to be very finely aligned. European Conference on Lasers and Electro-Optics, CLEO 2015, Germany. (tax-free) and with fees paid. This year marks, not only 60 years since Theodore H. Maiman built the first ever laser…but also the 20 th anniversary of SPI Lasers. Laser beams usually have the following unusual properties:In other words, the beam is all going in one direction, with only one colour of light, and all the photons are in step! Here at SPI Lasers, we specialise in the manufacture of market-leading Fiber Lasers, striving to offer the same exceptional level of support and service for our customers.
To contain the pump laser beam, we clad the fibre with an outer sheath. The research programme will study the physics of thulium doped fibre gain media to formulate new strategies for scaling laser output power whilst simultaneously achieving high efficiency and good beam quality. Each time the light goes across a boundary between one refractive index and another, a bit is reflected back. The Advanced Solid-State Sources group currently has vacancies for new students in the following research areas:Two-micron fibre laser technology has the potential to yield a wealth of new applications in areas such as industrial laser processing, medicine, defence and optical communications. The studentship comes with a stipend (including an additional industrial bursary) of £21,000 p.a. Fiber Laser Applications: Engraving Posted on 01/07/2020 Here at SPI Lasers, we specialise in the manufacture of market-leading Fiber Lasers, striving to offer the same exceptional level of support and service for our customers. Contact Us. For this to happen, the energy in that photon needs to match what's required to raise the electron to that orbit. Fibre lasers are continually getting more powerful, and have been made with over 1,000 Watts of power (1kW). We need to keep on 'pumping' the electrons back up so they are ready to emit photons, and we need to keep the photons zipping backwards and forwards to encourage even more to come out!The way we do this is by putting two mirrors in place at either end of the material (called the 'laser medium'). If they are given more energy, they can sit in a higher orbit called an 'excited state'.For various reasons to do with quantum mechanics, they can only sit in very specific orbits around the atom. It can be focused to an extent, but there are many things you can do with laser light that you can't do with 'normal' light. To get around this, we focus the pump laser into the much-larger cladding around the core. A fiber laser (or fibre laser in British English) is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium. This is better for power consumption, but it means less power is being converted to heat. These electrons normally sit in a low orbit, called the 'ground state'. Within the doped fibre, we have our 'laser medium', which is the erbium atoms. Meta-stable means that the electron will hang around for a little while before going back to the ground state.Laser material has to have a meta-stable state corresponding to a useful energy. Encyclopaedia of laser physics & technology. 20 - 24 Jun 2015.

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