First-order distributed feedback dye laser effect in reflection pumping geometry

Fei Chen, Denis Gindre, Jean Michel Nunzi

Research output: Journal PublicationArticlepeer-review

9 Citations (Scopus)


Tunable distributed feedback lasing output based on reflection grating configuration instead of the traditional transmission one was realized from rhodamine 6G (R6G)-doped ethanol and 4-dicyanomethylene-2-methyl-6- (p-dimethylaminostyryl)-4H-pyran-(DCM)-doped methanol. Pure gain coupling and additional index coupling were obtained in R6G-doped ethanol and DCM-doped methanol, respectively. The tuning, which was found to be independent of the refractive index of the lasing media, went through the entire stimulated emission band for the two cases. Dual-peak lasing emission indicative of the existence of an index grating was observed in DCM-doped methanol. The interval between the two peaks increased with pump energy.

Original languageEnglish
Pages (from-to)805-807
Number of pages3
JournalOptics Letters
Issue number7
Publication statusPublished - 1 Apr 2007
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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