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OADM
OADM
C-LIHGHT OADM (Optical Add-Drop Multiplexer) is a critical component in optical communication networks, designed to selectively "add" or "drop" specific wavelength channels in wavelength-division multiplexing (WDM) systems without requiring full optical-to-electrical signal conversion. Utilizing technologies such as fiber Bragg gratings (FBGs), arrayed waveguide gratings (AWGs), or micro-ring resonators, OADMs filter or reflect targeted wavelengths to dynamically route specific channels at network nodes while allowing others to pass through. This enables flexible wavelength management, reduces reliance on electronic processing, lowers latency, and cuts costs. OADMs are widely deployed in metropolitan networks, backbone networks, and reconfigurable optical networks (e.g., ROADM), serving as a cornerstone for building efficient, adaptive, and intelligent optical infrastructures.
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Product Details

OADM Optical Add-Drop Multiplexer for Flexible WDM Network Management

Form FactorPart No.Fiber TypeWavelengthDistanceConnectorNoteNote
DWDM OADMCLDWOADM*CHS-B1Single fiberDWDMN/ALGX/ABSN/AN/A
DWDM OADMCLDWOADM*CHS-A1Single fiberDWDMN/ALGX/ABSN/AN/A
CWDM OADMCLCWOADM*CHS-B1Single fiberCWDMN/ALGX/ABSN/AN/A
CWDM OADMCLCWOADM*CHS-A1Single fiberCWDMN/ALGX/ABSN/AN/A
DWDM OADMCLDWOADM*CHD-B1Dual fiberDWDMN/ALGX/ABSN/AN/A
DWDM OADMCLDWOADM*CHD-A1Dual fiberDWDMN/ALGX/ABSN/AN/A
CWDM OADMCLCWOADM*CHD-B1Dual fiberCWDMN/ALGX/ABSN/AN/A
CWDM OADMCLCWOADM*CHD-A1Dual fiberCWDMN/ALGX/ABSN/AN/A

OADM (Optical Add-Drop Multiplexer) is a passive optical networking component that selectively adds or drops specific wavelength channels in WDM transmission systems while allowing other wavelengths to continue through the fiber. It enables flexible wavelength management at network nodes without converting the complete optical signal to electrical form. C-LIGHT OADM supports both DWDM and CWDM configurations, with single-fiber and dual-fiber options in LGX and ABS packages.

Key Features of OADM

Selective Wavelength Add and Drop

OADM selectively removes specific wavelength channels from a WDM fiber and adds new channels at the same network node while allowing other wavelengths to pass through.

DWDM and CWDM Options

The product family supports both DWDM and CWDM architectures, providing flexible wavelength management for different optical network requirements.

Single-Fiber and Dual-Fiber Designs

Single-fiber and dual-fiber configurations are available to match different transmission architectures and network node designs.

Compact LGX and ABS Packages

LGX and ABS form factors provide convenient integration into optical distribution systems, fiber enclosures, and WDM network equipment.

OADM Product Configurations

DWDM Single-Fiber OADM

DWDM single-fiber configurations include CLDWOADM*CHS-B1 and CLDWOADM*CHS-A1, available in LGX or ABS packages for wavelength management over a single fiber.

CWDM Single-Fiber OADM

CWDM single-fiber configurations include CLCWOADM*CHS-B1 and CLCWOADM*CHS-A1 for CWDM wavelength add/drop applications.

DWDM Dual-Fiber OADM

DWDM dual-fiber configurations include CLDWOADM*CHD-B1 and CLDWOADM*CHD-A1 for networks using separate transmit and receive fiber paths.

CWDM Dual-Fiber OADM

CWDM dual-fiber configurations include CLCWOADM*CHD-B1 and CLCWOADM*CHD-A1 for flexible wavelength management in dual-fiber CWDM systems.

How OADM Works in WDM Networks

Wavelength Drop

A selected wavelength is removed from the incoming WDM signal at a network node and directed to the local receiving equipment.

Wavelength Add

A new optical channel can be inserted into the WDM fiber at the same node, allowing local traffic to join the existing transmission path.

Pass-Through Channels

Wavelengths that are not selected for local access continue through the OADM, allowing the remaining network channels to travel toward the next node.

Optical Layer Management

By managing wavelengths directly in the optical layer, OADM can reduce unnecessary optical-electrical-optical conversion and simplify wavelength-based network connectivity.

OADM Applications

Metro Optical Networks

OADM is suitable for metro WDM networks where selected wavelength channels need to be added or dropped at intermediate network nodes.

Backbone Networks

OADM can provide wavelength-level traffic access in backbone transmission systems while allowing other optical channels to continue across the network.

CWDM Access Networks

CWDM OADM provides a practical option for regional and access networks that require wavelength add/drop functionality with relatively simple optical architecture.

DWDM Networks

DWDM OADM supports selective wavelength management in higher-density WDM systems where individual optical channels need to be accessed at specific network nodes.

OADM vs. MUX/DeMUX

OADM

OADM is designed for intermediate network nodes where selected wavelengths need to be added or dropped while other channels pass through the node.

MUX/DeMUX

WDM MUX/DeMUX primarily combines multiple wavelengths onto a fiber and separates them at the receiving end, making it more suitable for network endpoints.

OADM Product Selection

Choose DWDM or CWDM

Select DWDM OADM when higher channel density and narrow wavelength spacing are required, or CWDM OADM for simpler wavelength management with wider channel spacing.

Choose Single-Fiber or Dual-Fiber

Single-fiber models are suitable for architectures using one fiber for wavelength transmission, while dual-fiber models are designed for separate optical paths.

Choose the Package

LGX and ABS packaging options provide flexibility for integration into different optical distribution and WDM equipment environments.

Network Node Integration

The appropriate OADM configuration can be selected according to wavelength architecture, fiber topology, packaging requirements, and network node design.

FAQ About OADM

Q1. What does OADM stand for?

OADM stands for Optical Add-Drop Multiplexer. It selectively adds or drops specific wavelength channels in a WDM optical network.

Q2. What is the main function of an OADM?

An OADM allows selected wavelengths to be added to or removed from a WDM fiber at an intermediate network node while other wavelengths continue through the network.

Q3. Does C-LIGHT OADM support both CWDM and DWDM?

Yes. The product family includes both CWDM OADM and DWDM OADM configurations.

Q4. Are single-fiber and dual-fiber OADM models available?

Yes. C-LIGHT provides both single-fiber and dual-fiber configurations for CWDM and DWDM applications.

Q5. What packages are available for OADM?

The listed OADM configurations are available in LGX and ABS packages for flexible optical network integration.

OADM for Flexible Wavelength Management

OADM provides selective wavelength add/drop functionality for CWDM and DWDM networks, enabling optical channels to be accessed at intermediate nodes without processing the complete WDM signal electrically. With single-fiber and dual-fiber configurations and LGX or ABS packaging, it supports flexible deployment across metro, backbone, and other WDM optical networks.

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Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.


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