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“To be milled”: 40
“To be milled”: 40
“To be fused”: 36
“To be fused”: 36
“To be polished”: 18
“To be polished”: 18
The same collars should work for both light guides and sci-fis. I need to calculate what I plan to take off, though, to be sure. I think I should also check once I have polished a bundle that they fit right in the splicing unit. If they are too long, I can take more off, but if they are too short, they will be more likely to be no good.
The same collars should work for both light guides and sci-fis. I need to calculate what I plan to take off, though, to be sure. I think I should also check once I have polished a bundle that they fit right in the splicing unit. If they are too long, I can take more off, but if they are too short, they will be more likely to be no good.
Jim thinks we need a LG bundle highly polished on both ends for dark rate testing. The dark box testing equipment needs to be calibrated before it is useful. Right now, all we could tell is that a fiber is very bad. We can't tell whether http://zeus.phys.uconn.edu/wiki/index.php?title=BW_January_2018&action=edita fiber is very good, barely good, or a little less than adequate. One problem is that the SiPMs are reading differently, and another is that the laser brightness is not uniform across the beam. There is a screen for the laser that is not quite perpendicular to the beam, and that is causing the variation in brightness.
Jim thinks we need a LG bundle highly polished on both ends for dark rate testing. The dark box testing equipment needs to be calibrated before it is useful. Right now, all we could tell is that a fiber is very bad. We can't tell whether a fiber is very good, barely good, or a little less than adequate. One problem is that the SiPMs are reading differently, and another is that the laser brightness is not uniform across the beam. There is a screen for the laser that is not quite perpendicular to the beam, and that is causing the variation in brightness.
Jim also showed me how to make socks for the fibers.
Jim also showed me how to make socks for the fibers.
I may have finished polishing the "To be milled" sci-fis. Since Micah used 5 micron grit on them the last time he polished, I started with 1 micron and continued to 0.3 micron grit and copier paper. They look pretty good, though there is a more heavily striated area in the second row from the top, and some small marks that may be from melting are visible. I should look at the bundle with the Carson camera or the microscope in lab 405.
I may have finished polishing the "To be milled" sci-fis. Since Micah used 5 micron grit on them the last time he polished, I started with 1 micron and continued to 0.3 micron grit and copier paper. They look pretty good, though there is a more heavily striated area in the second row from the top, and some small marks that may be from melting are visible. I should look at the bundle with the Carson camera or the microscope in lab 405.
1/31: Since I don't have gloves, just one left in the box, I decided to try out the microscope in lab 405 this morning. I looked at one of the practice fibers I fused and it appears to be only partly fused. I thought I could see a gap going rather deeply toward the middle of the fuse site. That may be because the practice fibers don't have a flat surface at the ends.
I tried to take a picture with the camera on top of the microscope, but it won't even show the image of the fiber on the screen. I looked at the [http://gdlp01.c-wss.com/gds/6/0400000016/01/PSA590IS_CUG_EN.pdf camera manual], but have not yet discovered what is wrong.
I have uploaded the beginnings of a [https://uconn-my.sharepoint.com/:x:/g/personal/benjamin_willis_uconn_edu/ERKh3A2AUwBPvlLJxPOaHekB9XSjUhP96nz5kXyrjeNa1A?e=pR9n3a work schedule].