Reliability testing of InGaAs mesa stucture waveguide photodiodes for 40-Gb/s optical receiver applications

As a summary, the reliability testing of mesa InGaAs WGPDs from the viewpoint of evaluation long-term reliability has been investigated using the accelerated life tests. From the reliability testing results, it was found that the WGPD structure yielded devices that exhibited the median lifetime of much longer than 106 h at practical use conditions. Consequently, this WGPD structure has sufficient characteristics for practical 40-Gb/s optical receiver modules.