低损耗光纤的开发使光通信正式进入实用化,不过,研究所已在研究可能有更低损耗的光纤了。现在,采用一种叫做氟化物玻璃的新材料,其损耗远远小于以前光纤的损耗极限。人们正在寻求实现这种光纤的可能性。 The development of low-loss optical fiber has put optical communication into practical use. However, the institute has been studying optical fibers that may have lower loss. Now, the use of a new material called fluoride glass, the loss is much less than the loss of the previous optical fiber. People are seeking to realize the possibility of such optical fiber.