Gigabit internet at reasonable costs

With our chip and license operators can get affordable gigabit internet

Our product is a tiny piece of hardware – a signal processing chip – which, together with a license to use our technology, will enable industrial customers to manufacture a new form of optic transceivers. We offer our chip together with the license to use our system design to worldwide markets and all interested parties.

With our product operators globally can not only achieve large cost savings but also significant efficiency improvements.

To industry outsiders: Transceivers are the components that enable fiber optic communication. There is a transceiver in each end of a fiber.

Gigabit internet at reasonable costs

The transceivers in use today are inefficient. It is our estimate, that there will be an attractive business case for equipment vendors in manufacturing transceivers in our design in large numbers and price it competitively but it is not up to us to decide the market price and determine other than our own margins. A competitive pricing will enable operators worldwide to provide gigabit fiber-optic internet connections at reasonable costs.

Fiber optic transceivers for fiber optic communication have the size of a thumb and are key components of fiber optic transmission networks. They are standard components manufactured in millions.

Our business model is well known in the industry that produces electronic components. As one example, the Bluetooth-technology is likewise sold as a piece of hardware together with a license to use the technology. Bluetooth is a wireless technology standard for exchanging data over short distances used in smart phones, computers and other devices.

Bifrost will de facto be the new standard

We believe that our Bifrost-technology will de facto be the new standard for building access networks.

Our chip is an application-specific integrated circuit (ASIC), which is a chip produced for a particular use. A chip for processing signals from optical light. The chip is one of two components in a transceiver. The other component is an optic component. To be produced the optic component (the BOSA, ROSA or TOSA) requires an advanced production facility and solid experience with production of transceivers.

ROSA is the short form of Receiver Optical Sub Assembly. It is a component which is used to receive optical signals in fiber optic systems. The ROSA consists of a photodiode device which converts light into electrical signal.

TOSA is the short form of Transmission Optical Sub Assembly. It is a component which is used to transmit optical signal in fiber optic network systems.

The TOSA consists of a laser device or LED device which converts electrical signals into light.

The BOSA consists of a TOSA and a ROSA plus a wavelength-division multiplexing (WDM) filter. A time-division-multiplexing protocol (TDM) is added in our solution to allow a high number of users in the same optical channel. Together the filter and our unique protocol makes it possible to send a high number of optical carrier signals onto one single optical fiber by using different colours (wavelengths) of laser light. Multiplexing (sometimes contracted to muxing) is a method by which multiple signals are combined into one signal over a shared medium.

All traditional PON standards use only a single optical wavelength channel, thereby greatly underutilizing vast bandwidth of the optical fiber. PON is short for passive optical network.

Only Bifrost fully supports and utilises the new standard

A new standard, the NG-PON2 standard, has been developed to address the inefficiency of the traditional transceivers. Our patented technology is the only solution that cost-effectively can meet the link budget of even the toughest NG-PON2 class (E2).

Bifrost’s solution could yield a substantial saving in system costs, as we can meet the link budgets at much lower optical power levels.  By utilizing the technology in the receiver at the Central Office (OLT), one could greatly relax the requirements to the transmitter the ONUs, one of the main contributors to system costs.  While this may require some deviation from the standards, we have demonstrated upstream E2 link budget using N1 ONUs and a Bifrost OLT receiver.

The NG-PON2 standard combines TDM and WDM technologies with tunable optical network unit (ONU) transceivers. ONU is short of Optical Network Unit. An ONU transceiver is the transceiver at the home, business or antenna base station.

Read more: The NG-PON2-standard (chart produced by the Broadband Forum’s NG-PON2 council).

Watch the system integrator Calix Networks Inc. explain why NG-PON2 rocks. Calix is one of is the world’s leaders in fiber optic communication equipment.

Our design cover both ONU transceivers and OLT transceivers. OLT is short of Optical Line Terminal. An OLT transceiver is the transceiver at the Central Office.

With commercial available optoelectronic components, optical transceiver vendors have had difficult times in designing and delivering products meeting all NG-PON2 specs of receiver sensitivity.

With our technology it is possible for manufacturers of transceivers with commercial available optoelectronic components to manufacture their own NG-PON2 standard compliant transceivers meeting all classes of the standard.

We provide ultra-high receiver sensitivity

Bifrost Communications has developed a Quasi-Coherent Receiver with ultra-high receiver sensitivity, unparalleled even by avalanche photo-detectors (APDs), and it can perform channel selection at the receiver site with a tunable laser without optical filters in traditional design.

Quasi-Coherent Receiver works like the receiver of an FM radio, just with the use of light. It obtain amplification of the weak incoming signal by shining light for a local light source on to the photo-detector.  As the FM radio, it can be tune in to select a specific channel by changing the frequency of the local light.

Avalanche photo-detectors (APDs) provides amplification through an advanced method in which electrons, generated from detected photons, are accelerated and causing multiplication through an ionization process. APDs are complicated and expensive, and they require much power to operate.

Our chip is the only non-standard component

Because we do not need optical filters and are able to use traditional design, and because all components of our transceiver, except the ASIC which is supplied by us, are standard components, we believe that our transceivers can be manufactured and sold at a reasonable price.

Read more: Our technology.

Standardized Packaging

The technology developed by Bifrost Communications, will be packaged inside standardized housings. This allows it to fit with existing infrastructure and hosting sites. Below is a video, showing the structure of the chosen XFP module and how this enables fiber access.