The Challenge in Realizing Truly Agile Fiber Lasers

Laser-diode seeded MOPAs hold promise of arbitrarily modulated high power laser output

Authors


  • Martin Ole Berendt is currently Chief Technology Scientist at MWTechnologies. He has more than fifteen years of experience in fiber lasers from both industry and academic positions. His PhD work in fiber lasers was carried out at DTU Denmark and ORC-University of Southampton and defended in 1999. MSc in engineering at The Polytechnical University was concluded in 1990. He served in The Royal Danish Guards with the rank of 1LT. He also holds a Bachelor of Commerce degree from Copenhagen Business School.

  • Hugo Barbosa is currently software and digital electronics engineer at MWTechnologies. He studied electrical and computer engineering at Instituto Superior de Engenharia do Porto, Portugal, from where he received the BSc.

  • Miguel Melo co-founded MWTechnologies where he currently serves as Managing Director. He received his diploma in optoelectronics and lasers, and his MSc in electrical and computer engineering, both from the University of Porto. He worked in several national and European projects in the areas of optical fiber amplifiers, planar technology and Bragg gratings for optical communications and fiber sensors. He then focused in the development of pulsed fiber lasers and amplifiers for industrial and sensing applications accumulating more than ten years of experience in the industry.

Abstract

The master oscillator power amplifier (MOPA) fiber laser has been around for several years but the bulk of applications use Q-switched fiber lasers. Now, with the processing capabilities of the Q-switched fiber laser fully explored, the MOPA fiber laser is getting revived attention. Laser-diode seeded MOPAs hold promise of arbitrarily modulated high-power laser output. Pulse-pumping the amplifiers to handle ON/OFF gating and low repetition rate pulse trains without overshoot or undershoot is of special interest.

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