We present a simple fabrication method for and the characteristics of a high speed InGaAs/InP avalanche photodiode (APD) with one floating guard ring. The APD structure that we propose consists of InP multiplication layer with a greatly reduced width and a highly doped electric field buffer layer, We also adopted a floating guard ring and a shaped main junction with recess etching for reliable operation of the APD. A long lifetime, exceeding ∼10 9 hours, was estimated from accelerated life tests. Also, reliable operation in the device center region was examined by measuring the two-dimensional gain, The gain and bandwidth product of the APDs was measured to be as high as 80 GHz.
|Journal||Journal of the Korean Physical Society|
|Publication status||Published - 2004 Apr|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)