Bravatek Solutions Inc (BVTK)

[stemcell]

BOTDA is tech that's been around for a while and is not proprietary in any way to dark pulse. dark pulse is just pretending to be a reseller. i say pretending because dark pulse is just one guy and a website, nothing more. No employees, no sales ever, just a farce. his own website even links to botda at the bottom of the page.

Here’s and excerpt:
“A very interesting feature of the BOTDA scheme is that it can measure a very large number of sensing points over long distances. Indeed, with proper implementation, it can work over a distance of 100 km or beyond; e.g., by employing Raman amplification [81–83] or pulse coding techniques [74,84–88]. Intrinsic spatial resolution over that range is limited to approximately 1 m, due to the reduced acoustic wave response time [89]. Correspondingly, several tens of thousands of sensing points can be measured by the BOTDA schemes. Many optical techniques were also introduced over the years to ameliorate the spatial resolution [90–94]. To our knowledge, a spatial resolution of a few millimetres [94,95] over a range of a few kilometres represents one of the best results achieved so far.”