In situations where fiber is not readily available, due to fiber exhaust or limited penetration, tunable lasers and DWDM are helping to expand capacity for metro, DCI and access applications. Even in areas where plenty of fiber is available, those techniques help maximize the ROI of a service provider’s fiber infrastructure. Further, advances in coherent technology and pluggable transceivers have enabled widespread deployment of IP over DWDM services and self-tuning algorithms have simplified the installation and maintenance of DWDM. As a result, metro transport, DCI and future access networks are moving towards coherent tunable pluggables, with annual sales forecast to double by 2026.

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EFFECT
Photonics
ABOUT ME
Joost Verberk – Director of Product Management – EFFECT Photonics
https://www.linkedin.com/in/joostverberk

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ABOUT EFFECT PHOTONICS
Where Light Meets Digital
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Disrupting the Status Quo –
Where Light Meets Digital
Cloud and
Cloud Edge
Access-Ready
Coherent
5G and
Beyond
Pluggables – Direct Detect and
Coherent
Sub-Assemblies
ASICs

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EFFECT
Photonics
Our three technological foundations for highly integrated photonics
Confidential
ABOUT EFFECT PHOTONICS
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Digital Signal Processor (DSP) Leveraging Existing Eco-Systems
Ultra-Pure Light Sources
EFFECT Photonics leverages the design,
wafer manufacturing, packaging, and
test infrastructure from the micro-
electronics ecosystem enabling a fabless
manufacturing flow capable of scaling in
both cost and performance
Our high-performance lasers enable
both full photonic integration and
compact form factors providing further
seamless integration, cost efficiency, and
low power
With internally owned Digital Signal
Processing and Forward Error Correction,
EFFECT Photonics can offer seamless
integration, cost efficiency and security
of supply

5. THE GROWING NEED FOR TUNABLE LASERS
FOCUS ON ACCESS, METRO, AND DCI NETWORKS
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EFFECT
Photonics
Confidential
NETWORK TRAFFIC KEEPS INCREASING EXPONENTIALLY
Global mobile network data traffic and year-on-year growth (EB per month)
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BUT IT ISN’T EQUALLY DISTRIBUTED ACROSS THE NETWORK
Global content delivery network internet traffic, 2017 through 2022
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Network traffic growth is more prominent at the edge than in the core

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EFFECT
Photonics
Access and Metro
Data plane options for future 5G applications
Data Center Interconnect
Meta’s vision data rate evolution
Data rate trends in Access, Metro, and DCI
Confidential
EVERYTHING IS TRENDING TOWARDS COHERENT
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Point to point

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EFFECT
Photonics
Confidential
COHERENT PLUGGABLES ARE GETTING SMALLER AND SMALLER
Coherent module size and power consumption evolution
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Photonics
Confidential
TUNABLE ULTRA-PURE LASER IS A KEY BUILDING BLOCK
Key building blocks of coherent transceiver
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Confidential
APPLICATIONS IMPOSE LIMITATIONS ON KEY LASER PARAMETERS
The five key parameters that determine laser performance
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Tunability
Line Width
Dimensions
Environment
Transmit
Power

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EFFECT
Photonics
Optimize fiber capacity by using multiple wavelengths
Dense Wavelength Division Multiplexing (DWDM)
Make tunable optics easy to use
By removing the need for manual tuning
Optimize fiber capacity through DWDM, optimize operation through self-tuning optics
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WHY DOES THE LASER NEED TO BE TUNABLE?
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WHY DO I NEED AN ULTRA PURE LASER?
The relationship between line width (LW), Phase Noise, and EVM
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Line Width (LW) Phase Noise
Line Width (LW) EVM

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Photonics
Evolution of coherent transceiver dimensions Evolution of tunable laser dimensions
Evolution of coherent transceiver and tunable laser dimensions
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AS COHERENT PLUGGABLE GET SMALLER, SO DOES THE LASER
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Source: Evolution of tunable laser form factors for coherent
optics (2011-2021). Figure from Laser Focus World.

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Photonics
As coherent moves out to the edge
It will go into uncontrolled environments
The edge requires industrial temperature hardening
Temperatures from -40 to 85C
Temperature classes and operating conditions
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LASER USED AT THE EDGE EXPOSED TO HARSH ENVIRONMENT
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EFFECT
Photonics
Confidential
LASER TRANSMIT POWER DEPENDS ON THE ARCHITECTURE
Overview of form factors and internal architecture
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Photonics
Confidential
COHERENT IS COMING TO THE EDGE: YOU NEED A “GOOD” LASER
The five key parameters that determine laser performance
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Tunability
Line Width
Dimensions
Environment
Transmit
Power
For DWDM systems,
tunability gives you lower
TCO and ease-of-use
Select the right laser
topology to support this
For higher speeds, you
need more pure lasers
Select the right material
platform to enable this
To fit into the smaller coherent
pluggable form factor laser size
has to go down as well
Need (photonic) integration to
enable reduction in footprint
Lasers used at the edge will be
subject to harsh environments,
like temperature and moisture
changes throughout the day/year
Select a laser that is well
packaged, qualified and controlled
Required optical output
power of the module
depends on the application
and the architecture
Select either separate laser
on fully integrated optical
system-on-chip

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The only thing more amazing
than our technology is what the world
can do with it.