Abstract
This work describes the construction of an ultra-compact narrowband fiber laser source for coherent anti-Stokes Raman scattering microscopy of Raman tags, that is, for addressing Raman resonances of deuterated molecules and alkyne tags in the spectral range from 2080 to 2220 cm−1. A narrowband and fast electronically tunable cw seed source based on a semiconductor optical amplifier (SOA) emitting around 1335 nm has been employed to seed four-wave mixing (FWM) in an endlessly single mode fiber (ESM) pumped by a ps pulse duration Yb-fiber laser. A conversion efficiency of 50% is demonstrated. This compact fiber optical parametric amplifier (FOPA) has been used to perform coherent anti-Stokes Raman imaging experiments of crystalline deuterated palmitic acid.
| Original language | English |
|---|---|
| Journal | Journal of Raman Spectroscopy |
| Volume | 52 |
| Issue number | 9 |
| Pages (from-to) | 1561-1568 |
| Number of pages | 8 |
| ISSN | 0377-0486 |
| DOIs | |
| Publication status | Published - 09.2021 |
Funding
We thank Active Fiber Systems GmbH for the control hardware of the fiber oscillator and amplifier unit. TMZ, MS, and JP gratefully acknowledge financial support from the German Research Foundation (DFG) via the Cluster of Excellence Balance of the Microverse (FKZ EXC 2051/1), by the Leibniz Science Campus InfectoOptics Jena (projects FastDrop, VesaDrop, iTag), which is financed by the funding line Strategic Networking of the Leibniz Association and by the European Union and the Free state of Thuringia via the Thüringer Innovationszentrum für Medizintechnik‐Lösungen (ThIMEDOP) (FKZ IZN 2018 0002). We thank Active Fiber Systems GmbH for the control hardware of the fiber oscillator and amplifier unit. TMZ, MS, and JP gratefully acknowledge financial support from the German Research Foundation (DFG) via the Cluster of Excellence Balance of the Microverse (FKZ EXC 2051/1), by the Leibniz Science Campus InfectoOptics Jena (projects FastDrop, VesaDrop, iTag), which is financed by the funding line Strategic Networking of the Leibniz Association and by the European Union and the Free state of Thuringia via the Th?ringer Innovationszentrum f?r Medizintechnik-L?sungen (ThIMEDOP) (FKZ IZN 2018 0002).
