- Description
- Reviews
- FAQs
Optical passive device is a kind of optical components which does not rely on any outside optical or electrical energy, and can do some optical functions by their own, such as coupler, filter and so on. Its working principle complies with the physical and geometrical optics theory, while laser transceiver device based on photoelectric energy conversion is called active devices.
READ MORE ...What is Fiber Optic Adapters / Couplers- Customers Reviews
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* Delivery Time.
We need 1-2 days to process your order before shipping. There are two shipping methoed.
Fast Delivery: The delivery time for US, European countries the delivery will take 3-5 days.
Slow Delivery: The delivery time for US, European countries the delivery will take 7-15 days.
* Tracking information.
After we ship package, customer receive automatic email with tracking details.
* Lost Package Policy.
If a package did not arrive in 2 weeks after the shipping date, then this package is treated as Lost. In this case a new package will be shipped to the customer provided we are able to give the same items as those purchased by the customer. If we are not able to provide the same items to substitute the lost ones we will either propose to the customer similar items or refund their cost as it will be mutually agree with the customer. If one or more items neither the same nor similar are available to be shipped, the customer can request to cancel the order entirely, thus the total cost of the order including shipping and handling cost will be fully refunded.
