7952
We have produced working optical interconnects with fiber core diameters from 70-μm to as small as 12-μm .
 optical, fiber, core, as, as
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 optical, fiber, core, as, as