Propagation characteristics and wavelength tuning of amplified spontaneous emission from dye-doped polymer.
The propagation characteristics of amplified spontaneous emission (ASE) through a rhodamine 6 G-doped polymethyl methacrylate freestanding film waveguide were studied. This was done by shifting the excitation stripe horizontally along a transversely pumped waveguide. By this method, we could tune the ASE wavelength. The maximum tunability thus obtained was approximately 18 nm with a pump stripe length of 6 mm.
International School of Photonics, Cochin University of Science and Technology, Cochin-22, India.
K
K
Geetha
M
M
Rajesh
V P N
VP
Nampoori
C P G
CP
Vallabhan
P
P
Radhakrishnan