Bessel beam like emission characteristics of a neodymium-doped multicore fiber laser using a Talbot cavity

Summary form only given.In multicore fibers, single mode rare-earth doped waveguides (micro cores) are placed on a ring inside a large pumpcore. Therefore, the absorption length for the pump radiation can be dramatically reduced. To increase the on-axis irradiation, phase-coupling between the indivi...

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Bibliographic Details
Main Authors: Glas, P., Fischer, D., Sandrock, T., Wrage, M., Pertsch, T.
Format: Conference Proceeding
Language:English
Subjects:
Erbium-doped fiber lasers
Fiber lasers
Laser beams
Laser excitation
Multicore processing
Optical coupling
Optical resonators
Optical scattering
Power lasers
Pump lasers
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Summary:Summary form only given.In multicore fibers, single mode rare-earth doped waveguides (micro cores) are placed on a ring inside a large pumpcore. Therefore, the absorption length for the pump radiation can be dramatically reduced. To increase the on-axis irradiation, phase-coupling between the individual micro cores has to be established. One possibility to arrange phase-coupling is the employment of self-reproduction of the near-field distribution by interference after a certain distance of free space propagation. This self-reproduction is called Talbot effect and was investigated and applied to different types of laser-arrays.
DOI:10.1109/CLEO.2000.907443