Title : 
A phototransistor with concentric electrodes on the Si substrate
         
        
            Author : 
Chen, C.W. ; Gustafson, T.K.
         
        
            Author_Institution : 
University of California, Berkeley, California
         
        
        
        
        
            fDate : 
8/1/1981 12:00:00 AM
         
        
        
        
            Abstract : 
A high-speed phototransistor with concentric lateral electrodes was fabricated on the Si substrate. The optical gain for continuous wave He-Ne laser excitation can be as high as 80. The pulse width in response to mode-locked laser pulses is 220 ps. A bandwidth of 1.7 GHz was observed for saturated unity-gain operation. The capability of being integrated is potentially useful in realizing high-speed optical receivers.
         
        
            Keywords : 
Bandwidth; Electrodes; High speed optical techniques; Laser excitation; Laser mode locking; Optical pulses; Optical receivers; Optical saturation; Phototransistors; Space vector pulse width modulation;
         
        
        
            Journal_Title : 
Electron Device Letters, IEEE
         
        
        
        
        
            DOI : 
10.1109/EDL.1981.25401