Low-order distributed feedback optofluidic dye laser with reduced threshold

We report the demonstration of low order distributed feedback (DFB) optofluidic dye lasers with reduced threshold. The laser chips were realized in polydimethylsiloxane using replica molding with two masters. A comparison between first, second, and third order DFB dye lasers was performed, while the second order DFB dye laser exhibited the lowest pump threshold of 78 nJ/pulse. Compared to previous reports on higher order Bragg grating structures, the pump threshold in this work is approximately 30-fold lower than the state of the art due to the reduction in the cavity losses and the more efficient pumping configuration. © 2009 American Institute of Physics.


Published in:
Applied Physics Letters, 94, 5, 051117
Year:
2009
ISSN:
00036951
Keywords:
Other identifiers:
Scopus: 2-s2.0-59849109220
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 Record created 2010-11-23, last modified 2018-09-13

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