CWDM 4,8 Channel Optical Add-Drop Multiplexer

DK Photonics CWDM 4,8 Channel Optical Add-Drop Multiplexer use stable Thin Film Filters and advanced packaging technology to achieve good performance and excellent environmental stability.

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DK Photonics CWDM 4,8 Channel Optical Add-Drop Multiplexer use stable Thin Film Filters and advanced packaging technology to achieve good performance and excellent environmental stability.

An optical add-drop multiplexer (OADM) is a device used in wavelength-division multiplexing systems for multiplexing and routing different channels of light into or out of a single mode fiber (SMF). This is a type of optical node, which is generally used for the construction of optical telecommunications networks. “Add” and “drop” here refer to the capability of the device to add one or more new wavelength channels to an existing multi-wavelength WDM signal, and/or to drop (remove) one or more channels, passing those signals to another network path.

DK Photonics offers a full range of CWDM Mux-Demux and Optical Add Drop Multiplexer (OADM) units to suit all kinds applications and network solutions. Some most common ones are: Gigabit & 10G Ethernet, SDH/SONET, ATM, ESCON, Fibre Channel, FTTx and CATV. Our CWDM Mux Demux products provide up to 16-channel or even 18-channel Multiplexing on a single fiber. Due the the low insertion loss is needed in WDM networks, we can also add “Skip Component” in a CWDM Mux/Demux module to reduce the IL as an option.

Standard CWDM Mux/Demux package type include: ABS box package, LGX pakcage and 19” 1U rackmount. The products are Telcordia GR-1221/1209-CORE qualified, and RoHS compliant.

Features Applications
  • Low insertion loss
  • Wide pass band
  • High channel isolation
  • High stability and reliability
  • Epoxy free on optical path
  • CWDM Channel Add/Drop
  • WDM network
  • Telecommunication
  • Cellular Application
  • Fiber optical amplifier
  • Access Network

Performance Specifications

Parameter 4 channel 8 channel
Add Drop Add Drop
Operating Wavelength (nm) 1471, 1491 or 1470, 1490 etc.
Center Wavelength Accuracy (nm) ± 0.5
Channel Spacing (GHz) 20nm
Channel Passband (@-0.5dB bandwidth) Min.(nm) ≥13
Insertion Loss (dB) Add/Drop Ch. ≤1.4 ≤2.5
Express Ch. ≤0.6 ≤1.0
Channel Ripple (dB) ≤0.3 ≤0.3
Isolation @add/drop channel(dB) Adjacent N/A >30 N/A >30
Non-adjacent N/A >40 N/A >40
Insertion Loss Temperature Sensitivity (dB/°C ) <0.003
Wavelength Temperature Shifting (nm/ °C ) <0.002
Polarization Dependent Loss (dB) <0.10
Polarization Mode Dispersion (ps) <0.1
Directivity (dB) >50
Return Loss (dB) >45
Maximum Power Handling (mW) 300
Operating Temperature (°C) -20 ~+85
Storage Temperature (°C)  -40 ~+85

**Specifications may change without notice.

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