title: Dual-core ytterbium fiber amplifier for high-power 1060 nm swept source multichannel optical coherence tomography imaging.
abstract: A novel (to our knowledge) dual-core ytterbium (Yb(3+)) doped fiber, as an optically pumped amplifier, boosts the output power from a 1060 nm swept source laser beyond 250 mW, while providing a wavelength tuning range of 93 nm, for optical coherence tomography (OCT) imaging. The design of the dual-core Yb-doped fiber amplifier and its multiple wavelength optical pumping scheme to optimize output bandwidth are discussed. Use of the dual-core fiber amplifier showed no appreciable degradation to the coherence length of the seed laser. The signal intensity improvement of this amplifier is demonstrated on a multichannel in vivo OCT imaging system at 1060 nm.
authors.affiliation: Department of Electrical and Computer Engineering, Ryerson University, Toronto, Canada M5B 2K3.
authors.forename: Mark K
authors.initials: MK
authors.lastname: Harduar
authors.forename: Adrian
authors.initials: A
authors.lastname: Mariampillai
authors.forename: Barry
authors.initials: B
authors.lastname: Vuong
authors.forename: Xijia
authors.initials: X
authors.lastname: Gu
authors.forename: Beau A
authors.initials: BA
authors.lastname: Standish
authors.forename: Victor X D
authors.initials: VX
authors.lastname: Yang
mesh_terms: D000818:Animals; D041623:Tomography, Optical Coherence / Q000295:instrumentation* / Q000379:methods*; D014982:Xenopus laevis / Q000033:anatomy & histology; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D015018:Ytterbium