@article{10902/21162,
year = {2021},
month = {4},
url = {http://hdl.handle.net/10902/21162},
abstract = {A broadband continuously tunable SESAM all-fiber laser based on optical parametric generation (OPG) for Coherent anti-Stokes Raman Scattering (CARS) imaging applications is presented in this article. This laser structure is built on all-polarization maintaining fibers yielding high environmental stability. The OPG is based on PM photonic crystal fiber as parametric gain pumped by a wavelength-tunable (1025 nm to 1055 nm) and repetition rate-tunable (3 MHz to 500 KHz) Yb-doped pulsed fiber laser. The all-fiber structure features free polarization adjustment in slow-axis tunable operation with a wavelength range from 770 to 940 nm for signal radiation and 1225 to 1510 nm for idler radiation. The pump and signal pulses (CARS-Stokes and CARS-pump respectively) are intrinsically overlapped, both spatially and temporarily, due to the four-wave mixing (FWM) generation and emitted from a single fiber end. The CARS-Stokes and CARS-pump pulse duration vary between 25 to 32 ps and 21 to 24 ps respectively in the whole band, ensuring a good overlap of the generated signals, and both exhibit a Gaussian profile with high spatial beam quality. The frequency conversion allows to obtain a frequency difference between the generated signals from 1100 to 3300 cm-1. The reported low-cost laser source is ideal for bio-imaging applications, especially in CARS imaging, due to its compactness, simplicity, robustness and ease of handling. A patent has been filed based on this technology.},
organization = {This work was supported by the Spanish Comisión Interministerial de Ciencia y Tecnología within project TEC2016-76021-C2-2-R (AEI/FEDER, UE) and project PID2019-107270RB-C21/AEI/10.13039/501100011033.},
publisher = {Institute of Electrical and Electronics Engineers, Inc.},
publisher = {Journal of Lightwave Technology, 2021, 39(8), 2489-2496},
title = {Broadband continuously tunable all-fiber laser based on OPG for CARS imaging},
author = {Aporta Litago, Iñaki and Quintela Incera, María Ángeles and López Higuera, José Miguel},
}