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Ultra-long lasers challenge traditional knowledge about laser technology

The EU-funded ULTRALASER project is showing that lasers can be more than just sources of coherent light. With the right configuration, they can also be a transmission medium - a development that will allow for a variety of new uses.
Ultra-long lasers challenge traditional knowledge about laser technology © Shutterstock
Thanks in part to the advances in materials science, technology and physics behind it, today's lasers have become ubiquitous devices used in various sectors - such as fundamental science, the manufacturing sector, engineering, telecommunications and medicine. Continuing on this path of progress in the field of laser technology, the ULTRALASER project is focusing on the development of ultra-long lasers or lasers with a cavity formed by a long stretch (up to hundreds of kilometers) of optical fiber transformed into a medium of Raman effect amplification.