1.
Opt Lett
; 31(17): 2550-2, 2006 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-16902615
ABSTRACT
Suppression of stimulated Raman scattering (SRS) is demonstrated in a cladding-pumped fiber amplifier. The Yb-doped amplifier fiber design incorporates a high-index ring that resonantly couples SRS wavelengths out of the gain material, thus filtering the gain. Modeling shows that fiber asymmetry plays an important role in the filtering spectrum.
2.
Opt Lett
; 31(10): 1480-2, 2006 May 15.
Article
in English
| MEDLINE
| ID: mdl-16642145
ABSTRACT
We demonstrate all-optical switching at 1550 nm between two weakly coupled cores in a photonic crystal fiber for intensities up to 0.5 TW/cm2. Spectrum analysis at higher intensities reveals that the output was dominated by continuum generation primarily towards shorter wavelengths.