Clear Fiber Bundle Health/Status

A summary of all of the testing results of the Clear Fiber bundles since the start.

Criteria for passing (somewhat arbitrary, but based on results from the 3 bundles used in Run 17 that were deemed "good"):
  • Average transmission of above -65%
  • No single fiber in a bundle has transmission below -75%


Bundles to use in Run 18:

FB# Status Comments Average Max Full Sheet
1 Healthy  First bundle; repolished twice  -63% -68%   FB01
2 Healthy  Results from 2nd test; avg unchanged from first test  -55%  -62%  FB02
3 Healthy    -54% -67%   FB03
4 Healthy
 -63% -73%   FB04
5 Healthy    -62% -71%   FB05
6 Healthy  Repolished once  -62% -68%   FB06
7 Healthy    -61% -73%   FB07
8 Healthy  Repolished 3 times  -63% -72%   FB08
9 Healthy    -64% -71%   FB09
10 Healthy    -62% -68%   FB10
11 Healthy    -62% -73%   FB11
13 Healthy Repolished 3 times  -64.8%  -73%  FB13
14 Healthy    -62% -73%   FB14
15 Healthy    -62% -73%   FB15
16 Healthy    -62% -73%   FB16
17 Healthy    -63% -70%   FB17
18 Healthy    -61% -69%   FB18
19 Healthy    -63% -68%   FB19
20 Healthy  Repolished twice  -64%  -69%  FB20
21 Healthy    -64% -72%   FB21
23 Healthy  Repolished once  -63% -72%   FB23
24 Healthy    -63% -74.6%  FB24
26 Healthy    -62% -66%   FB26
27 Healthy    -57% -68%  FB27



Failing Bundles that can still be used in Run 18 in an emergency:

FB# Status Comments Average Max Full Sheet
22 Injured Failing upon retest. Not sure what's going on  -61% -77%   FB22
12 Injured Single fiber glows on both ends, possibly cracked N/A N/A N/A
28 Injured Failing final test. Also even/odd difference of 6% -61% -78%  FB28


Bundle Under Construction: FB25 (Broken splitter; construction not completed, but can be fixed and polished for the future if needed)




In summary, at the moment we have:
  • 24 Passing Bundles (FB1-FB11, FB13-FB21, FB23-FB24, FB26-FB27)
  • 3 Failing Bundles (FB28 has a fiber at -78%; FB12 has a fiber glowing on either end, so it was set aside. Has never been fully tested, but the glowing fiber was actually passing testing; FB22 failing upon retest; 2 fibers below -75%)  
  • 1 Incomplete bundle (FB25 had a tube splitter that broke. It can be fixed, polished and used, but of course should only be used as a last resort)




Google Spreadsheets for posterity:

Fiber by Fiber testing of every bundle: https://docs.google.com/spreadsheets/d/1rs-XOkZjJQz_nzMzTgH1vVVI4Ck12OCSJ_Dc_WHTaK8/edit#gid=0

Fiber Bundle Status Summary: https://docs.google.com/spreadsheets/d/1u5dWDUeguvjiPTBiH32b--NCzr-gS7l-ocCTeo5hBF0/edit#gid=0