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- Title
Ultra‐compact tunable fiber laser for coherent anti‐Stokes Raman imaging.
- Authors
Gottschall, Thomas; Meyer‐Zedler, Tobias; Schmitt, Michael; Huber, Robert; Popp, Juergen; Tünnermann, Andreas; Limpert, Jens
- 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.
- Subjects
OPTICAL parametric amplifiers; TUNABLE lasers; ANTI-Stokes scattering; SEMICONDUCTOR optical amplifiers; FOUR-wave mixing; MODE-locked lasers; FIBER lasers; CONTINUOUS wave lasers
- Publication
Journal of Raman Spectroscopy, 2021, Vol 52, Issue 9, p1561
- ISSN
0377-0486
- Publication type
Article
- DOI
10.1002/jrs.6171