Lasing from a conjugated polymer, poly(9,9-di-(2-ethylhexyl)fluorenyl-2,7′-diyl), incorporated into a glass-clad step index optical fibre structure is reported. The fibre is fabricated by filling a glass capillary with a toluene solution containing polystyrene and the conjugated polymer. Under nanosecond transverse photopumping, the fibre 1.5 cm in length exhibits laser emission at 436 nm from a Fabry-Perot cavity formed by the Fresnel reflections at the fibre end-air interfaces.
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Kobayashi et al. (2002) studied this question.
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