Li, Z.Zhang, Z.Emery, T.Scherer, A.Psaltis, D.2010-11-232010-11-232010-11-23200610.1364/OPEX.14.0006962-s2.0-31144436355https://infoscience.epfl.ch/handle/20.500.14299/58166Single frequency lasing from organic dye solutions on a monolithic poly(dimethylsiloxane) (PDMS) elastomer chip is demonstrated. The laser cavity consists of a single mode liquid core/PDMS cladding channel waveguide and a phase shifted 15th order distributed feedback (DFB) structure. A ImM solution of Rhodamine 6G in a methanol and ethylene glycol mixture was used as the gain medium. Using 6 nanosecond 532nm Nd:YAG laser pulses as the pump light, we achieved threshold pump fluence of ∼0.8mJ/cm2 and single-mode operation at pump levels up to ten times the threshold. This microfabricated dye laser provides a compact and inexpensive coherent light source for microfluidics and integrated optics covering from near UV to near IR spectral region. © 2006 Optical Society of America.text::conference output::conference proceedings::conference paper