Dear Vladimir:

I hope this email finds you well. 

We have additional questions on the module production and cost:

1) For the WLS fibers, do you want the fiber company to ship full spools of fibers to IHEP, or have the fibers pre-cut? The cutting will require additional cost from the fiber company;

2) We have asked about whether IHEP can make fiber connectors. I understand you asked for the design/drawings from our local fiber company, however, they stated that the design is the company property and should not be circulated. So I cannot email you the drawing here, but the idea is to have a very compact connector made of aluminum. On one end are 100 WlS fibers plugged in, and the other end has 100 clear fibers. The light loss should be non-significant. Can something like this be made at IHEP?  And if yes, what will be the approximate cost?

3) What is the cost of mirrors for the WLS fibers per module? (We have 100 1-mm diameter fibers per module);

Best regards,

Xiaochao