Title : 
Investigation of carrier-density dependent transmission properties with Germanium waveguides
         
        
            Author : 
Tadashi Okumura;Shinichi Nakatsuka;Katsuya Oda;Junichi Kasai;Yuji Suwa;Misuzu Sagawa;Tatemi Ido
         
        
            Author_Institution : 
Central Research bib., Hitachi. Ltd. 1-280 Higashi-Koigakubo, Kokubunji Tokyo, 185-8601, Japan
         
        
        
        
        
            Abstract : 
Optical propagation characteristics of unintentionally doped and n-type doped Ge waveguides were investigated to achieve tasing operation (if the Ge laser. An n-type doped Ge waveguide showed significant reduction of its propagation loss under optical pumping.
         
        
            Keywords : 
"Optical waveguides","Optical pumping","Absorption","Germanium","Silicon","Reflectivity"
         
        
        
            Conference_Titel : 
Group IV Photonics (GFP), 2015 IEEE 12th International Conference on
         
        
        
            DOI : 
10.1109/Group4.2015.7305961