Schwab: The demultiplexer with spectral channel separation

2018: Creation of the demultiplexer with spectral channel separation

On September 28, 2018 the Schwabe company announced creation of the innovation device capable to separate on lengths of waves and to transmit more than hundred signals from one source. Development, according to representatives of Schwabe holding, will be demanded in telecommunication systems, including in the field of TV and broadcastings, personal communication, computer networks and digital electronics.

Engineers and technologists of the enterprise of Schwabe Holding – the State Institute of Applied Optics (SIAO) – developed the demultiplexer with spectral channel separation. The complete set of the device contains a lens and, depending on the applied technology of demultiplexing (CWDM or DWDM), the dispersing element or group of the dispersing elements.

According to the statement of the developer, the device is necessary for transfer of TV and radio signals. It can be applied in the field of telephony, in different digital and communications systems, including devices to information exchange in cars, airplanes, trains. As noted in GIPO, in the forthcoming perspective its serial production can begin.

"The demultiplexer developed by scientists of our institute is capable to filter on lengths of waves and to transfer ten times more channels, than its analogs. At the same time such quantity does not affect quality. The separated signals arrive to consumers in high resolution". Vilen Baloyev, CEO of GIPO

Unusual construction of the device using volume diffraction grating promotes better channel separation. As a result the demultiplexer can transmit with almost minimum uniform loss a set of signals from one source (CWDM – 10 signals, DWDM – more than 100 signals) while at similar devices with growth of number of signals of their loss significantly increase, claim in GIPO.