4 Channel CWDM OADM
CWDM OADM 4 Channel, Dual Fiber or Single Fiber, Dual-Sided (East and West) and Single-Sided (East or West) Configurations, Monitor and 1310nm Port Optional, Arkoptics
Product Categories
- WDM OTN
- Optical Transceivers
- Fiber Optic Cable Assemblies
- Cassettes and Enclosures
- Fiber Components
- Copper Cabling System
Description
CWDM Optical Add/Drop Multiplexer (OADM) is a passive optical device used in WDM systems for adding and dropping one/multiple CWDM channels into or out of one or two fibers, while letting the rest of the wavelengths bypass to another network path. An OADM may be considered to be a specific type of optical cross-connect. Through the use of OADM, individual channels can be optically extracted from a fiber pair while allowing pass-through traffic to continue unobstructed through the bus or ring.
The Arkoptics CWDM OADM comes as a 1RU 19”device with rackmounts available in single-sided (East or West) and dual-sided (East and West) configurations. It is modular, scalable, and it is perfectly suited to 10/1G Ethernet, 16/8/4/2/1G FC, SDH/SONET, Video, CATV, FTTx applications.
Dual fiber DWDM OADM adds and drops optical signals of same wavelengths into two fibers, while letting the rest of the wavelengths bypass to the needed destination. The DWDM transceiver connected to DWDM OADM should have the same wavelength as the client port.
The dual-sided OADM removes one channel from the network in one direction and sends it to a local interface in one direction. It also allows a second local port to add the same channel back onto the network fiber in the opposite direction.
In single fiber applications, DWDM OADM adds and drops optical signals of different wavelengths into a fiber in the opposite direction. It utilizes a single fiber for both adding and dropping, which reduces overall costs, and increases the capacity of the fiber.
The single-sided OADM removes one channel from the network in one direction and sends it to a local interface. The remaining channels are passed straight through to other nodes along the network.
Custom CWDM Add Drop Multiplexer
CWDM OADM in Dual-Sided (East and West) and Single-Sided (East or West) Configurations
–Based on thin flm filter with epoxy free optical path
–Low insertion loss for C-band channels
–Add/drop 1-4 channels at remote sites
–Optional monitor/1310nm/1550nm port for external functions
–Protocoltransparent (support 1G, 10G etc.)
–Completely passive, no power or maintenance required
–Ideal for CWDM ring structures or daisy chain applications
–LC/UPC by default, other connectors available on request
–Fully compliant with CE, FCC, ISO, ITU-T G.694.2, RoHS, Telcordia GR1209 and GR1221
Specifications
| CWDM OADM | ![]() 1CH CWDM OADM | ![]() 2CH CWDM OADM | ![]() 4CH CWDM OADM | ![]() 1CH CWDM OADM | ![]() 2CH CWDM OADM | ![]() 4CH CWDM OADM |
| Transmission Direction | East and West | East and West | East and West | East or West | East or West | East or West |
| Technology Type | TFF(Thin-Film-Filter) | |||||
| Channel Spacing | 20nm | |||||
| Channel Passband | λc ±6.5nm or ±7nm | |||||
| Passband Ripple | ≤ 0.3dB | |||||
| Insertion Loss Bypass | ≤ 0.8dB | ≤ 1.4dB | ≤ 2.2dB | ≤ 0.5dB | ≤ 0.6dB | ≤ 1.0dB |
| Insertion Loss Add-Drop | ≤ 0.8dB | ≤ 1.2dB | ≤ 1.6dB | ≤ 0.8dB | ≤ 1.2dB | ≤ 1.6dB |
| Insertion Loss +1% Monitor | 0.6dB Additional | 0.6dB Additional | 0.6dB Additional | 0.3dB Additional | 0.3dB Additional | 0.3dB Additional |
| Insertion Loss +1310nm Port | 0.6dB Additional | 0.6dB Additional | 0.6dB Additional | 0.3dB Additional | 0.3dB Additional | 0.3dB Additional |
| Channel Isolation | Adjacent≥30dB; Non-adjacent≥45dB | |||||
| Bypass Isolation | ≥25dB | |||||
| Directivity | ≥50dB | |||||
| Return Loss | ≥45dB | |||||
| Polarization Dependent Loss | ≤ 0.2dB | |||||
| Polarization Mode Dispersion | ≤ 0.2ps | |||||
| Power Handling | ≤ 500mW | |||||
| Fiber Type | ITU-T G657 A1 | |||||
| Connector Type | LC UPC or Other Conn. | |||||
| Operating Temperature | -20°C to +70°C | |||||
| Storage Temperature | -40°C to +85°C | |||||
| Dimension | Plug-in Module 1RU 19” Rack Mount | |||||



