Cypherpunks: Jim Bell meets Sumitomo Electric

[rooty]

GREAT JOB Jim - $$$$$$$$$$$$$$$$$$$$$$$

-------- Original Message --------
On Sep 12, 2019, 9:47 AM, jim bell wrote:

> Jim Bell meets Sumitomo Electric at Seattle.
>
> I am driving to Seattle today to meet executives from Sumitomo Electric. https://global-sei.com/     They are one of the major manufacturers of optical waveguides.  (fiber optics).   https://global-sei.com/products/optical-fiber/
>
> Sumitomo Electric has the distinction of having achieved the world record for optical waveguide loss, currently about 0.1419 dB/kilometer at 1560 nanometers.  (This is apparently a laboratory result, not production.)  https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8267035
>
> It beats one of its biggest competitors, Corning     https://www.corning.com/worldwide/en/products/communication-networks/products/fiber/optical-fiber-resource-center/fiber-matters-videos-and-tutorials.html   primarily because Sumitomo employs a pure-silica fiber core, with a fluorine-doped cladding, whereas Corning has long employed a pure-silica cladding, with the core doped with germanium.    One of Sumitomo's fibers, Z+150 has a production loss of  0.152 dB/km
>
> One of Corning's fibers,   has a specified loss of less than 0.17 dB/km at 1550 nanometers wavelength.  (A production result, not laboratory.)
>
> Into this 30 year+ competition I come, like a veritable bull in the technical china-shop.  I got the attention of Sumitomo by using LinkedIn to send about 100 of their employees on Monday (as well as a couple thousand others at Corning, YOFC, OFS, Prysmian, ZTT, Hengtong, Nokia, Fujikura, Furukawa, Futong, Fiberhome, Ciena, Huawei Marine, and SubCom) a statement:
>
> "Your company should be selling a silica single-mode optical waveguide with a loss of 0.001 dB/kilometer. You'll think that's impossible but I know how to do it.
> https://www.linkedin.com/pulse/optical-waveguide-0001-dbkm-loss-even-10x-less-jim-bellhttps://daltonium.com/optical-fiber/
>
> (What I have not yet mentioned is my belief that rather than the usual silica-fiber transmission "sweet spot" being about 1500-1600 nanometers, useful transmission will likely occur from 600-2000+ nanometer wavelength. This will keep fiber transmitter and receiver manufacturers busy for years!)
>
> Well, THAT got Sumitomo's attention !!!  What I proposed amounted to, in their industry, a leprechaun saddled on a unicorn, itself standing on the back of a winged-pig.  Flying.
>
>                           Jim Bell
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