title: Highly polarized all-fiber thulium laser with femtosecond-laser-written fiber Bragg gratings.
abstract: We demonstrate and characterize a highly linearly polarized (18.8 dB) narrow spectral emission (<80 pm) from an all-fiber Tm laser utilizing femtosecond-laser-written fiber Bragg gratings. Thermally-dependent anisotropic birefringence is observed in the FBG transmission, the effects of which enable both the generation and elimination of highly linearly polarized output. To our knowledge, this is the first detailed study of such thermal anisotropic birefringence in femtosecond-written FBGs.
authors.affiliation: Townes Laser Institute, CREOL College of Optics and Photonics, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, USA.
authors.forename: Christina C C
authors.initials: CC
authors.lastname: Willis
authors.forename: Erik
authors.initials: E
authors.lastname: McKee
authors.forename: Pascal
authors.initials: P
authors.lastname: Böswetter
authors.forename: Alex
authors.initials: A
authors.lastname: Sincore
authors.forename: Jens
authors.initials: J
authors.lastname: Thomas
authors.forename: Christian
authors.initials: C
authors.lastname: Voigtländer
authors.forename: Ria G
authors.initials: RG
authors.lastname: Krämer
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Bradford
authors.forename: Lawrence
authors.initials: L
authors.lastname: Shah
authors.forename: Stefan
authors.initials: S
authors.lastname: Nolte
authors.forename: Andreas
authors.initials: A
authors.lastname: Tünnermann
authors.forename: Martin
authors.initials: M
authors.lastname: Richardson
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D054802:Molecular Imprinting / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D013932:Thulium / Q000737:chemistry*
chemical_list: D013932:Thulium