Title : 
Low-loss optical directional coupler on InP
         
        
            Author : 
Deri, R.J. ; Yasuoka, Nami ; Makiuchi, M. ; Kuramata, Akito ; Wada, O. ; Yamakoshi, Shigenobu
         
        
            Author_Institution : 
Bellcore, Red Bank, NJ, USA
         
        
        
        
        
        
        
            Abstract : 
The authors demonstrate a low-loss 3 dB directional coupler for use in balanced coherent receivers for lightwave communications. The device exhibits 1.6-1.7 dB insertion loss and better than 52:48 splitting ratio at 1.54 mu m wavelength.
         
        
            Keywords : 
III-V semiconductors; directional couplers; indium compounds; integrated optoelectronics; optical communication equipment; optical couplers; 1.54 micron; 1.6 to 1.7 dB; 3 dB; InP; balanced coherent receivers; insertion loss; low loss coupler, semiconductors; optical directional coupler; splitting ratio; wavelength;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19890905