https://tcspc.com/ 2026-05-02T16:07:03+00:00 https://tcspc.com/ https://tcspc.com/lib/exe/fetch.php/logo.png text/html 2025-02-14T09:43:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://tcspc.com/doku.php/faq:start?rev=1739526232&do=diff <table><tr><th colspan="2" width="50%">2025/02/14 10:43</th><th colspan="2" width="50%">current</th></tr><tr><td class="diff-blockheader" colspan="2">Line 10:</td> <td class="diff-blockheader" colspan="2">Line 10:</td> </tr> <tr><td class="diff-lineheader">&#160;</td><td class="diff-context">**In this article we assume that both detectors are SPADs of the same kind (both Excelitas SPADs, or both PDM-SPADs, or both tau-SPADs).**</td><td class="diff-lineheader">&#160;</td><td class="diff-context">**In this article we assume that both detectors are SPADs of the same kind (both Excelitas SPADs, or both PDM-SPADs, or both tau-SPADs).**</td></tr> <tr><td class="diff-lineheader">&#160;</td><td class="diff-context"></td><td class="diff-lineheader">&#160;</td><td class="diff-context"></td></tr> <tr><td class="diff-lineheader">-</td><td class="diff-deletedline">If you are using either a **proper** (see below) 50/50&#160;<strong class="diff-mark">cube&#160;</strong>beamsplitter to split the signal between two detectors or a 100% mirror to direct the signal to one detector and then the other, but still observe very different count rates on the two detectors, this discrepancy could be due to the following reasons:</td><td class="diff-lineheader">+</td><td class="diff-addedline">If you are using either a **proper** (see below) 50/50 beamsplitter to split the signal between two detectors or a 100% mirror to direct the signal to one detector and then the other, but still observe very different count rates on the two detectors, this discrepancy could be due to the following reasons:</td></tr> <tr><td class="diff-lineheader">&#160;</td><td class="diff-context"></td><td class="diff-lineheader">&#160;</td><td class="diff-context"></td></tr> <tr><td class="diff-lineheader">&#160;</td><td class="diff-context">1. Misalignment of the Lens in Front of the SPAD:</td><td class="diff-lineheader">&#160;</td><td class="diff-context">1. Misalignment of the Lens in Front of the SPAD:</td></tr> </table>