Single mode optofluidic distributed feedback dye laser

Single 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.


Published in:
Optics Express, 14, 2, 696-701
Year:
2006
Other identifiers:
Scopus: 2-s2.0-31144436355
Laboratories:




 Record created 2010-11-23, last modified 2018-09-13

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