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Raman gain from waveguides inscribed in KGd(WO4)2 by high repetition rate femtosecond laser.
- Source :
-
Applied Physics Letters . 2/25/2008, Vol. 92 Issue 8, p081105. 3p. 1 Color Photograph, 3 Graphs. - Publication Year :
- 2008
-
Abstract
- We report the formation of waveguides in Raman-active KGd(WO4)2 with a focused, high repetition rate femtosecond laser. Parallel guiding regions, formed to either side of the laser-induced damage track, supported TE and TM modes that coupled efficiently to optical fiber at telecom wavelengths. Micro-Raman spectroscopy of the guiding regions revealed the preservation of the characteristic 768 and 901 cm-1 Raman mode intensities. Raman gain with 6% efficiency was demonstrated for the 768 cm-1 Raman line by pumping the waveguide with an infrared 80 ps source, the first time Raman gain has been reported in laser formed waveguides. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RAMAN effect
*LASERS
*RAMAN spectroscopy
*WAVEGUIDES
*PHYSICS
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 92
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 31229964
- Full Text :
- https://doi.org/10.1063/1.2884188