Optical Technology Services: Wavelength, xWDM, Alien Wave, Passive Wave & Dark Fiber 

Optical Technology Services from IPTP Networks are designed for organizations that need maximum bandwidth, physical-layer control, and scalable transport capacity across metro, regional, and international networks. As part of the wider IPTP Networks Products and Services Ecosystem, these services help businesses build high-capacity optical channels with strict requirements for latency, isolation, protocol transparency, and long-term scalability.

Whether the goal is to lease a dedicated wavelength, maximize existing fiber capacity with CWDM or DWDM, deploy proprietary coherent optics over a third-party optical system, or operate a fully self-managed dark fiber route, IPTP Networks provides the optical foundation for secure, flexible, and future-ready network infrastructure. For latency-sensitive environments, optical transport can also be combined with Low Latency Routes across IPTP Networks’ global backbone.

Wavelength Services: Dedicated Wavelengths

Wavelength Services provide dedicated wavelengths (lambdas) on IPTP Networks’ fiber-optic lines for organizing high-speed channels with maximum bandwidth.

What It Does:

The service provides exclusive use of an individual wavelength on optical fiber, allowing you to organize an independent communication channel with bandwidth up to 400 Gbps and higher per wavelength. For organizations working with modern 100G, 200G, 400G and higher-speed optical infrastructure, IPTP Networks’ educational resource on Modern Optical Transmission Standards and Transceivers provides additional context on optical interfaces, transceiver families, and deployment considerations.

The customer gains full control over the protocol used and transmission parameters, making Wavelength Services an ideal choice for building private, high-capacity optical channels between major network locations, data centers, cloud environments, and international points of presence.

Key Features:

• Ultra-High Bandwidth: From 10 Gbps to 400+ Gbps per wavelength
• Protocol Transparency: Ability to use any data transmission protocols
• Low Latency: Minimal delays due to direct optical transmission
• Scalability: Ability to lease multiple wavelengths as needs grow
• Independence: Complete isolation from other customers at the physical level

Ideal For: Large corporations, telecommunications carriers, cloud providers, and data centers requiring maximum bandwidth and control over communication channels.

xWDM Solutions: Wavelength Division Multiplexing

xWDM (CWDM/DWDM) are wavelength division multiplexing technologies that enable transmission of multiple independent channels over a single optical fiber.

What It Does:

xWDM, including CWDM and DWDM, refers to wavelength division multiplexing technologies that enable the transmission of multiple independent channels over a single optical fiber. These technologies allow organizations to dramatically increase the capacity of existing fiber infrastructure without deploying additional fiber strands.

CWDM (Coarse Wavelength Division Multiplexing):

• 18 channels with 20 nm spacing (1270-1610 nm)
• Distance up to 80 km
• Cost-effective solution for metropolitan networks
• Simplicity of deployment and low power consumption

DWDM (Dense Wavelength Division Multiplexing):

• Up to 160 channels with 0.4-0.8 nm spacing (50-100 GHz)
• Distance up to several thousand kilometers with optical amplifiers
• Support for 100G, 200G, 400G and higher speeds per channel
• Ideal for long-haul backbone lines and intercontinental connections

Ideal For: Organizations with growing bandwidth requirements wanting to maximize efficient use of existing fiber-optic infrastructure.

Alien Wave (Third-Party Wavelength Transport):

Alien Wave service allows customers or partner carriers to place their own DWDM transponders and transmit an independent wavelength (lambda) across IPTP Networks’ optical infrastructure — including amplifiers and ROADMs — without IPTP Networks providing the optical layer equipment at the endpoints.

The customer’s signal travels as a foreign (alien) channel within the IPTP DWDM system, physically co-propagating with IPTP-native wavelengths on the same fiber. This approach enables maximum flexibility: the customer retains full control over modulation format, FEC scheme, and line rate (up to 400G and beyond), while IPTP ensures the optical transmission parameters (OSNR, chromatic dispersion, PMD) remain within agreed tolerances across the entire path.

Alien Wave is particularly suited for carrier-to-carrier interconnects, subsea cable landing station connections, large cloud providers deploying proprietary coherent optics, and organizations that need to extend their optical domain across third-party infrastructure without giving up control over endpoint equipment.

Passive Wave (Passive Optical Transport):

Passive Wave service provides a dedicated wavelength channel over a passive CWDM or DWDM multiplexer infrastructure, with no active optical amplification in the path. The customer connects their own SFP/SFP+/QSFP transceivers directly to the passive mux/demux ports, and the signal propagates over the fiber without any intermediate active components managed by IPTP Networks.

This results in the lowest possible latency (purely physical propagation delay with no processing overhead), zero additional jitter, and full protocol transparency at the optical layer. Passive Wave is optimal for short to medium distances (up to 80 km for CWDM, up to 40–80 km for DWDM without amplification) within metropolitan and regional networks, making it a cost-effective solution for data center interconnect and campus connectivity.

Dark Fiber: Unlit Fiber

Dark Fiber is the leasing of unactivated optical fibers for complete customer self-management.

What It Does:

The customer receives exclusive use of physical optical fibers in IPTP Networks’ infrastructure and independently installs active equipment. This provides maximum control, flexibility, and the ability to scale bandwidth at your own discretion.

Key Features:

• Full Control: Independent choice of equipment and transmission technologies
• Unlimited Bandwidth: Scaling to the limits of fiber physical capabilities
• Long-term Savings: No bandwidth charges
• Security: Physical isolation from other customers
• Technology Flexibility: Ability to apply any protocols and technologies

Ideal For: Large telecommunications carriers, data centers, and corporations with significant long-term bandwidth requirements and the need for complete control over network infrastructure.

Dark Fiber Cross-Connect

In addition to long-haul and regional dark fiber routes, IPTP Networks provides Dark Fiber Cross-Connect services — physical optical patch connections between equipment within the same facility or between co-located facilities within a city or metropolitan area. Cross-connects are typically deployed within carrier-neutral data centers, colocation facilities, and Internet Exchange Points (IXPs) where IPTP Networks maintains a point of presence, enabling customers to establish direct fiber jumpers between their own equipment and IPTP’s network infrastructure, third-party carriers, or peering partners.

Cross-connect variants include:

• Intra-facility cross-connect: Single-mode fiber patch within one data center or colocation cage, providing the lowest-latency physical interconnection (sub-microsecond)
• Inter-facility metro cross-connect: Dark fiber strand connecting two IPTP PoPs or customer sites within the same city, typically using existing conduit infrastructure
• IXP cross-connect: Direct optical connection to an Internet Exchange switching fabric or a specific peering partner port

All cross-connects are delivered as unlit, passive fiber — the customer installs and operates all active optics — with IPTP managing the physical plant, fiber documentation (OTDR traces), and end-to-end continuity testing upon provisioning.