THIN-FILM OPTICAL WAVEGUIDE FUNCTION ELEMENT

专利名称：THIN-FILM OPTICAL WAVEGUIDE

FUNCTION ELEMENT

发明人：SASAKI KEISUKE,ITO HIROSHI,SERIZAWA MUTSUMI,AOKI YUICHI,TAKIGAWA

AKIO,MAEDA KOICHI,TAGO IKUO,YOSHIDA

MOTOAKI

申请号：JP16007484

申请日：19840730

公开号：JPS6139594A

公开日：

19860225

专利内容由知识产权出版社提供

摘要：PURPOSE:To facilitate the production of a fine and integrated element, by protruding a portion of an optical waveguide where an active layer is contacted therewith in a stepped manner with respect to the other portions, such that the film pressure changes in a face standing vertically to the interface with the active layer. CONSTITUTION:Glass is RF spattered on a molten quartz substrate 4 to form a waveguide 3. A mask 10 is then coated thereon and the glass is further spattered to form a stepped projection 2. Subsequently, an active medium 1 consisting of a polyurethane film containing rhodamine 6G is formed on the stepped projection 2. Pumping light is focused linearly along the dot-and-dash line in the drawing by means of a cylindrical lens, whereby the active medium is excited to radiate laser beams. The radiated beams are combined and guided in the waveguide projection 2, and resonated and amplified between the end faces 2A and 2B of the projection 2. The laser beams are then taken out by the waveguide 3. With the stepped projection as described above, the laser beams are

not diffused but present a spot form, and have a fine periodic structure in both of the X and Y directions.

申请人：NIPPON SHEET GLASS CO LTD

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