TY  - JOUR
AU  - Chung, Hsiang-Yu
AU  - Cao, Qian
AU  - Chang, Guoqing
AU  - Kärtner, Franz
AU  - Liu, Wei
TI  - Er-Fiber laser enabled, energy scalable femtosecond source tunable from 1.3 to 1.7 μm
JO  - Optics express
VL  - 25
IS  - 14
SN  - 1094-4087
CY  - Washington, DC
PB  - OSA
M1  - PUBDB-2017-04701
SP  - 15760 - 15774
PY  - 2017
N1  - © Optical Society of America
AB  - We demonstrate that energetic femtosecond pulses tunable from 1.3 to 1.7 µm can be achieved using self-phase modulation enabled spectral broadening followed by spectral lobe filtering. Based on a home-built 5-W Er-fiber laser system operating at 31-MHz repetition rate, we obtain femtosecond pulses that can be continuously tuned from 1.3 to 1.7 µm with >4.5 nJ pulse energy. We further optimize the spectral broadening process using a fiber with larger mode area and scale up the pulse energy to >10 nJ; the resulting pulse duration is as short as  50 fs. Such a widely tunable, energetic femtosecond source is well suited for driving a laser scanning microscope to perform deep tissue multiphoton microscopy.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000407815100014
C6  - pmid:28789088
DO  - DOI:10.1364/OE.25.015760
UR  - https://bib-pubdb1.desy.de/record/324504
ER  -