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Previously, we proposed novel pumping scheme 'quasi mode coupling (QMC)' for fiber-top-pumping. Since QMC reuires a four layered (dual core) structures, demonstrated QMC-distributed feedback (DFB) dye lasers requires complicated fabrication process with spin-coating. In this report, we demonstrated simple fabrication of QMC-DFB dye lasers due to the 'print-like-fabrication' at first time.
Integration techniques of tunable film dye lasers on a plastic optical application chip were studied. We fabricated microflowcytometry chip integrated with DFB film lasers as a first example. Preliminary LIF experiment was also demonstrated.
Combination of intra-cavity SHG and passively-Q-switching demonstrated on 473 nm quasi-four-level Nd:YAG laser. Periodically-poled MgO:SLT was inserted into the 10 mm length cavity of passively-Q-switched Cr:Nd:YAG laser. A longitudinally pumping with 4 W laser diode shows beam quality of M2 ap1. The output energy of 29 muJ and pulse duration of 3.1 ns were obtained.
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