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DWDM optical System-on-Chip (SoC) technology

A DWDM (Dense Wavelength Division Multiplexing) system is the technology of choice for many networking applications today. By using many different wavelengths of light to route data, these systems are more efficient, flexible and cost-effective to build, own and operate compared to single-channel point-to-point links. By using EFFECT Photonics’ high-density electrical interconnect and packaging technology, the optical System-on-Chip is assembled for volume manufacture at low cost.

As the channel count increases, the physical space in which the equipment is housed gets larger and the power consumption increases as well. The key enablers for DWDM systems at the edge of the network is photonics integration of components within a single chip and being able to produce these in volume with high yield at low cost. This requires a change in the way indium phosphide (InP) chips are designed, tested, and packaged, which is where EFFECT Photonics comes in.


One of the key challenges with DWDM technology is the need for as many optical light sources, modulators and detectors as there are channels in a system. Building and managing these using conventional discrete fiber optic components, linecards, AWG (Arrayed Waveguide) multiplexers and rackmount channel monitors quickly becomes prohibitively expensive.

EFFECT Photonics is able to integrate the following optical functions all within a single InP chip:

  • Tunable laser sources
  • AWG multiplexers
  • High-speed detectors (photodiodes)
  • High-speed modulators, including single- or multi-stage Mach-Zehnder modulators/interferometers (MZMs/MZIs)
  • Power taps and splitters
  • Channel Monitoring

NarroWave Technology-Enabled SFP+ Modules

EFFECT Photonics’ new NarroWave technology is a new feature that allows customers to monitor and control remote SFP+ modules from the central office without making any hardware or software changes in the field. NarroWave is agnostic of vendor equipment, data rate or the protocol of the in-band traffic. The host at the central office can access the remote digital diagnostics and monitoring by reading dedicated memory pages of the local SFP+, which are a mirror of the host device. This feature can also be used to send commands to a remote device, which enables use-cases such as automatic tuning and automatic power balancing. This makes EFFECT’s SFP+ modules a powerful asset in the toolkit of any telecom provider looking to dynamically control and monitor its telecommunication network.

Our products

Bringing affordable and scalable
DWDM to the edges of the network

Tunable Optical



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