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All-fiber mode-locked thulium doped fiber laser using a novel femtosecond laser inscribed 450 tilted fiber grating

A. Theodosiou, J. Aubrecht, , P. Peterka, K. Kalli, I. Kašík, P. Honzátko
Published in OSA - The Optical Society
2019
Volume: Part F140-CLEO_Europe 2019
   
Abstract
The recent development of mode-locked fiber lasers operating at ~2μm is accelerating, driven by industrial and medical applications, particularly in the so-called "eye-safe" applications of laser surgery, biomedical imaging, medicine and sensing [1]. While being practical devices, given reproducible experimental conditions, fiber lasers continue to be an excellent research avenue to unveil a plethora of complex ultrafast dynamics. Developments on versatile all-fiber laser sources are attractive, due to their increased efficiency, robust and compact configurations. The development of artificial saturable absorbers, such as nonlinear polarization rotation (NPR) based on the optical Kerr effect, has enabled the realization of all-fiber formats. However, in hybrid laser designs, the use of bulk polarizers reduces the perceived advantage of the fiber-based format. In this communication, we employ a recently developed 45° tilted fiber grating (TFG) inscribed using femtosecond laser [2] as an in-line fiber polarizer in an all-fiber laser [3]. This grating inscription process offer advantages over traditional 45°-TFG UV-laser inscription, and is based on plane-by-plane, direct writing using a femtosecond laser, as it neither requires a phase mask nor a hydrogen loading process, as is usually the case. © 2019 IEEE
About the journal
JournalData powered by TypesetOptics InfoBase Conference Papers
PublisherData powered by TypesetOSA - The Optical Society
ISSN1084-7529
Impact Factor1.230
Citation Styleunsrt
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