F.A.Q. - DWDM

DWDM (Dense Wavelength Division Multiplexing) is the process by which multiple wavelengths are simultaneously combined in a single optical fiber, and then separated again at the receiving end of the fiber. In contrast to electrical signals, there is no interference. More wavelengths mean more data transferred.

Yes! This is the biggest advantage of DWDM technology. No new fiber configuration or qualification is required. All you need specify is the transmission speed. A Photeon Technologies chip solution at the entry and receiving end of the fiber solves your “time to market” issue with a high quality, state-of-the-art multiplexing solution.

The number of usable wavelengths is determined by three factors: the optical amplification window of the optical amplifiers, the absorption factor of the fiber, and the product application. Photeon Technologies currently offers silicon solutions in 4, 8, 16, 32, 40, 64 and 80 wavelengths. If your specification calls for additional wavelengths, please contact our design services to discuss our custom solution capabilities.

For each wavelength you will need an appropriate light source at the transmitting end, and a detector at the receiving end.

No! Although there is a standard grid of frequencies (the ITU grid), our products can be tuned to your wavelength specifications. This special feature allows you to minimize optical losses, reducing the cost for optical amplifiers.

Problems such as unstable chip performance, high losses due to inaccurately aligned wavelengths, and overall systems failures necessitate the use of expensive amplifiers, impacting your cost of sales, and reduce the time you can spend with your valuable customer base. A Photeon Technologies solution provides you with an inexpensive, reliable chip solution with unlimited wavelength capacity, and a wavelength grid adjustable to your specification.