Airport network modernization presents a difficult challenge: how can an airport support more connected technology, greater bandwidth, stronger security, and continued expansion without adding more infrastructure to manage?
It’s a question becoming more important as investment in airport infrastructure and technology continues to grow. ACI-NA estimates that U.S. airports will require $173.9 billion in infrastructure investment from 2025 through 2029, while SITA reports that airport IT spending reached 7.3% of revenue in 2025, up from 6.4% the previous year.
With that level of investment underway, the opportunity isn’t simply to add more technology. It’s to build an infrastructure foundation that makes continued modernization easier.
One approach is to simplify the physical network itself.
Optical LAN uses fiber and passive optical networking (PON) to connect airport systems across long distances with fewer active network components. For airports, this can reduce telecommunications room requirements, cabling, power and cooling demands, while providing a scalable foundation for new technologies and future expansion.
That matters as airports connect more:
- Security cameras
- Access control systems
- Wireless access points
- Digital signage
- Building systems
- Operational technology (OT)
- Passenger services
- Other IP-connected devices
Why Is Airport Network Modernization So Challenging?
Airports aren’t typical enterprise environments.
Network connectivity may need to extend across terminals, concourses, gates, parking structures, operations areas, maintenance facilities, security checkpoints, administrative buildings, and other locations across a large campus.
Traditional switched Ethernet architectures can require intermediate distribution facilities (IDFs), switches, copper cabling, power, cooling, and supporting infrastructure throughout these environments.
As an airport expands, adding connectivity can mean adding more infrastructure along with it.
The challenge quickly becomes bigger than bandwidth. Every new system must fit into an airport that is already operating around the clock, where space is limited, downtime can have an immediate impact, and construction or infrastructure changes are rarely simple. Airport technology leaders have to think beyond today’s needs and consider how each decision will affect operations, expansion, and the ability to support whatever comes next.
How Can Fiber Simplify Airport Network Infrastructure?
Fiber can carry network connectivity over much greater distances than traditional copper Ethernet.
An Optical LAN architecture uses that reach to reduce the layers of active electronics between the core network and connected endpoints.
For airport environments, this can help:
- Reduce or eliminate IDFs in appropriate designs
- Reduce requirements for network switches, copper cabling, power and cooling
- Extend connectivity across large airport facilities and campuses
- Centralize network management
- Simplify expansion into new or renovated areas
- Support IP-connected airport systems over a common fiber-based infrastructure
Instead of continually adding network infrastructure as technology expands, airports can create a simpler fiber foundation designed for growth.
Can Optical LAN Support Airport Security and Operational Systems?
Yes. Airport systems are becoming increasingly connected, making the network foundation supporting them more important than ever. According to SITA’s 2025 State of Aviation analysis, 48% of airports plan to implement cross-silo data streaming, sharing, or synchronization by 2028, creating shared operational views across areas such as gates, passenger flow, and airside activity.
As that convergence grows, building and managing separate network infrastructure for individual systems adds unnecessary complexity. Optical LAN can provide a common fiber-based foundation for critical airport technologies, helping technology teams reduce layers of infrastructure, centralize management, and connect systems across terminals and other airport facilities.
For airport leaders, modernization doesn’t have to mean another network to manage. A more unified infrastructure can make it easier to introduce new technologies, expand connectivity, and adapt as airport needs evolve.
Can Airport Networks Expand Without Adding More Network Rooms?
In many designs, yes.
Traditional copper Ethernet is constrained by distance, which can drive the placement of additional telecommunications rooms and active switching equipment throughout a facility.
The long-distance capabilities of fiber can change that design equation.
By reaching farther from centralized locations, Optical LAN can reduce the need for intermediate network rooms in appropriate airport environments. That can free valuable facility space while also reducing associated requirements for power, cooling, backup power, and maintenance.
For airports planning:
- Terminal renovations
- Airport expansions
- New concourses
- Parking facilities
- Security upgrades
- Other construction projects
Reducing supporting network infrastructure can deliver benefits well beyond the IT department.
How Does Optical LAN Help Airports Prepare for Future Technology?
Airport technology will continue to change. The physical infrastructure underneath it should not have to be rebuilt every time it does.
A fiber-based infrastructure provides substantial bandwidth capacity and can support evolving network technologies over a long lifecycle.
That makes the physical network an important part of long-term airport modernization planning.
Instead of designing infrastructure around one project or application, airport leaders can establish a connectivity foundation capable of supporting technologies that may be added years later.
This is particularly important in airports, where construction can be expensive, disruptive, and difficult to coordinate around continuous operations.
What Should Airports Consider Before the Next Network Upgrade?
Airport network modernization shouldn’t begin with a simple question about how to replace existing switches.
It should begin with broader questions:
- How much infrastructure is actually necessary?
- How far does connectivity need to reach?
- How many network rooms, switches, power connections, and cooling systems will need to be maintained over the life of the network?
- Can multiple airport systems securely share a common infrastructure?
- Will today’s network design make the next terminal expansion or technology deployment easier—or harder?
Those questions can reveal opportunities that aren’t apparent when modernization is approached as a one-for-one replacement of traditional network equipment.
Building a Simpler Foundation for the Modern Airport
Airport modernization isn’t slowing down. New technologies, expanding facilities, evolving security needs, and growing connectivity demands will continue to put more pressure on the network.
The opportunity is to support that growth without adding the same layers of infrastructure and complexity.
Tellabs Optical LAN gives airports a fiber-based foundation designed to reach farther, simplify network infrastructure, centralize management, and support continued modernization. With a network built to adapt as airport needs evolve, technology teams can spend less time managing complexity and more time preparing for what comes next.
The future of the airport will depend on more connected technology. The network underneath it should make that future easier to build.
Ready to simplify your next airport project? Explore our airport network modernization resources and schedule a free consultation with our airport network experts.