Photonic Crystal Fiber

Does anyone know about the techniques used for fabrication of Photonic Crystal fiber?
I heard that there are 6 to 7 types of PCF fabrication method.
P/s: where can i get the list of prices for each PCF based on different fabrication methods?
Thank you

See this:
https://str.llnl.gov/april-2013/dawson

thanks for the website. but it stil did not state wat types of fabrication method is used. Mainly are stack and draw but lecturer said it has 6 to 7 ways.



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