Dense wavelength division multiplexing (DWDM) uses the same transmission window but with denser channel spacing. Channel plans vary, but a typical system would use 40 channels at 100 GHz spacing or 80 channels with 50 GHz spacing.

Dense wavelength division multiplexing (DWDM) refers originally to optical signals multiplexed within the 1550nm band so as to leverage the capabilities (and cost) of erbium doped fiber amplifiers (EDFAs), which are effective for wavelengths between approximately 1525–1565nm (C band), or 1570–1610nm (L band).

Shenzhen Hilink Technology Co., Ltd. was founded in 2007 year.

We are specialized in manufacturing and marketing fiber optic products.

Our core competencies are fiber optics of QSFP28,DWDM CWDM SFP/XFP

and network solutions of FWDM, DWDM CWDM CFP2  DCO, MPO AAWG,etc

which largely apply in cloudy computing, data center, networking access ,and so on.

For improving our main products and solution performance,

we also specialize with related optical products by customers' requirement.

We have professional production line and staff who are making high quality products in short time.

All the items are coming with certification, like RoHS CE FCC standard.

We are committed to providing class 1 products ,

and cost-effective solutions to create new values for our partners.

Our products and services have reached worldwide countries and districts.

We have established long-term win-win cooperation relationships with global clients,such as Viking Netherland , Sweden Telecoms, United states TX ISP.

With the growing reputation, now more and more partners from worldwide are joining us.

Our ideal is to make communication simpler and easier.

To delivery the extreme service and work value, we are striving for excellence and perfection with unfailing enthusiasm.