Development on multiple-wavelength laser chips on-demand and on-site.

2004年：研究了一种新型的多层波导激光器抽运系统，称为准端发射（QEF）。首先，对设计过程进行了编程和仿真。其次，我们制作并评估了多层DFB染料激光器，并证明了该系统的良好性能。它需要多层自旋镀膜技术，并对各层的折射率进行微调。此外，用类似的加工技术制备的多层DFB激光器也显示出了很高的转换效率。它具有不含染料的DFB层和含有染料和散射化合物的活性层。此外，还研究了用于DFB激光器el器件的新型染料化合物。2005年：研究了薄膜激光器的热光学效应。首先，在DFB染料激光器上引入了加热电极（Al），并证明了通过在电极上施加加热电流可以切换激光波长。数值分析为设计提供了依据。另一方面，为了提高DFB染料激光器的布拉格反射，研究了用244nm激光器制作DFB染料激光器的新方法。此外，作为“笔画”制作新工艺的初步实验，开发了DFB激光器与微流式细胞仪芯片的集成。2006年：主要研究了QEF和TO在DFB薄膜染料激光器上的集成。尽管在2005年对DFB的制造工艺进行了改进，但这种复杂的DFB染料激光系统显示出较差的工艺良率。另一方面，笔画加工已经发展成为一种有用的技术。研究了DFB激光器与微流式细胞仪芯片的集成，并对其进行了优化。因此，在本研究结束后，我们将继续研究使用笔画技术的to - qef DFB激光器。我们期望这种新技术能改善工艺运用，取得更好的效果。

Year 2004 : Novel pumping system for multi-layered waveguide laser, it termed as Quasi-End-Firing(QEF)' was investigated. Firstly, simulation for designing was programmed and performed. Secondary, we fabricated and evaluated the multiple-layered DFB dye lasers, and demonstrated that the system works well. It requires the multiple-layer spin coating technique with a fine-tuning of refractive indices of the layers.Furthermore, very high conversion efficiency was demonstrated from multiple-layered DFB lasers fabricated with similar processing technique. It has DFB layer without dye and active lay with dye and scattering compounds. In addition, new dye-compound for EL-device was also studied for DFB laser.Year 2005 : The Thermo-optical (TO) effects on the film lasers was studied. As a first step, introducing heater electrode (Al) on the DFB dye laser, and it demonstrated that the lasing wavelength could be switched by applying heating current on the electrode. The numerical analysis was also performed to support the designing. On the other hand, newly DFB fabrication with 244nm laser was studied to improve Bragg reflection of the DFB dye lasers. In addition, as the preliminary experiment for newly fabrication process of "pen drawing", the integration of DFB laser and microflowcytometry chip was developed.Year 2006 : The integration of QEF and TO on DFB film dye laser was mainly studied. However, this complicated DFB dye laser system shows poor process yield, although the improvement of DFB fabrication process was executed on 2005. On the other hand, the pen-drawing processing has developed as a useful technique. The integration of DFB laser and microflowcytometry chip was demonstrated, and its optimization for LIF spectroscopy was done.So, after this research term, we continue to study about TO-QEF DFB laser but using pen-drawing technique. We expect that this new technique improve process wield and obtain better results.