LED and VCSEL Testing

    Light Emitting Diodes (LEDs), Laser Diodes, and Vertical Cavity Surface Emitting Lasers (VCSELs) are finding their way into more and more applications today.  These applications include facial scanners for security, LIDAR for collision avoidance and self-driving cars, as well as optical telecommunications.  While the VCSEL is a relatively simple device in terms of its electrical behavior, it also has optical properties and behaviors that must be tested as well.  This requires a different approach to testing than with a standard discrete diode.  Engineers need to test both the electrical and optical properties of these devices, sometimes at very high frequencies.  


Callback before_footer in local_fullscreen component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7476 of \lib\moodlelib.php: call to debugging()
  • line 7543 of \lib\moodlelib.php: call to {closure}()
  • line 71 of \lib\classes\hook\output\before_footer_html_generation.php: call to get_plugins_with_function()
  • line 1503 of \lib\outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of \course\info.php: call to core_renderer->footer()
Callback before_footer in local_semibot component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7476 of \lib\moodlelib.php: call to debugging()
  • line 7543 of \lib\moodlelib.php: call to {closure}()
  • line 71 of \lib\classes\hook\output\before_footer_html_generation.php: call to get_plugins_with_function()
  • line 1503 of \lib\outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of \course\info.php: call to core_renderer->footer()
user_preference_allow_ajax_update() is deprecated. Please use the "core_user/repository" module instead.
  • line 41 of \lib\ajax\ajaxlib.php: call to debugging()
  • line 100 of \local\fullscreen\lib.php: call to user_preference_allow_ajax_update()
  • line 74 of \lib\classes\hook\output\before_footer_html_generation.php: call to local_fullscreen_before_footer()
  • line 1503 of \lib\outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of \course\info.php: call to core_renderer->footer()