Narrow line-width 1.3-μm wavelength tunable InAs/InGaAs quantum dot based bench-top light source using sandwiched sub-nano separator growth technique
Using sandwiched sub-nano separator technique, we successfully developed a narrow linewidth broadband 1.3-μm wavelength tunable quantum dot based bench-top light source, which can be useful for coherent photonic transport in O-band.
Simultaneous 3 × 10-Gbps optical data transmission in 1-μm, C-, and L-wavebands over a single holey fiber for ultrabroad-waveband photonic transport system
Simultaneous 3 × 10-Gbps error-free photonic transmissions with clear eye-openings are demonstrated in the 1-μm, C-, and L-wavebands by using an ultrabroad-waveband photonic transport system comprising a 3.3-km-long holey fiber transmission line.
The National PKI of Peru: a new certification hierarchy
In order to guarantee secure transactions through the Internet and to generate strong evidence that could be used in case of future legal disputes, several countries around the world have promoted and regulated the use of digital signatures based on Public Key Infrastructure (PKI). However, despite the high expectations, its implementation has achieved neither the desired results nor its globalization. Many of the reasons were discovered years ago, but they are still open problems for the scientific community nowadays. In order to consider the case of the national PKI of the Peruvian state as empirical evidence for studies that address the open problems, this article describes the details about a new certification hierarchy which is expected to overcome some of its predecessors’ limitations. It is also expected that the information disclosed in this article could be useful to other countries for making a preliminary assessment for possible cross-border recognition of Peruvian digital signatures.