CWDM Mux / Demux

Coarse wavelength division multiplexing (CWDM) is a method of combining multiple signals on laser beams at various wavelengths for transmission along fiber optic cables, such that the number of channels is fewer than in dense wavelength division multiplexing (DWDM) but more than in standard wavelength division multiplexing (WDM).

CWDM systems have channels at wavelengths spaced 20 nanometers (nm) apart. This allows the use of low-cost, uncooled lasers for CWDM. In a typical CWDM system, laser emissions occur on eight channels at eight defined wavelengths: 1610 nm, 1590 nm, 1570 nm, 1550 nm, 1530 nm, 1510 nm, 1490 nm, and 1470 nm. But up to 18 different channels are allowed, with wavelengths ranging down to 1270 nm.

KINSOM’s Coarse wavelength division multiplexer (CWDM Mux/Demux) utilizes thin film coating technology and proprietary design of non-flux metal bonding micro optics packaging. It provides low insertion loss, high channel isolation, wide pass band, low temperature sensitivity and epoxy free optical path.

We offers a full range of CWDM Mux/Demux devices 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.

Features:

  • Passive equipment that uses no electrical power
  • Low insertion loss, high isolation
  • Extended Temperature Range (0-70℃)
  • Much lower cost per channel than DWDM
  • Scalability to grow fiber capacity with little or no increased cost
  • Protocol Transparent
  • Simple to install and use
  • Telcordia/Bellcore GR-1209 and GR-1221 qualified

Applications:

  • Line monitoring
  • WDM network
  • Telecommunication
  • Cellular Application
  • Fiber optical amplifier
  • Access Network

Specifications

Parameters
Unit
1×2
1×4
1×8
1×16
1×18
Wavelength Range
nm
1260 ~ 1620
Channel Center Wavelength
nm
1270 / 1290 / … / 1610 or 1271 / 1291 / … /1611
Channel Spacing
nm
20
Channel Passband
nm
λc ± 7.5
Insertion Loss
dB
≤0.8
≤1.5
≤2.5
≤5.2
≤6.4
Adjacent Channel Isolation
dB
≥ 30
Non-adjacent Channel Isolation
dB
≥ 40
Wavelength thermal stability
nm/℃
≤ 0.003
Insertion loss thermal stability
dB/℃
≤ 0.005
≤ 0.007
≤ 0.008
PDL
dB
≤ 0.1
≤0.15
≤ 0.15
≤ 0.20
≤ 0.25
Polarization mode dispersion
ps
≤ 0.1
≤ 0.1
≤ 0.1
≤ 0.15
≤ 0.15
Directivity
dB
≥ 50
Return loss
dB
≥ 45
Optical Power
mW
≤ 500
Operating Temperature
-10 ~ +70
Storage Temperature
-40 ~ +85
Relative Humidity
%
5 ~ 95

Package Dimension

cwdm-device
1x8+1 -channels-compact-cwdm-device
abs-box-dwdm-mux-demux-module
dwdm-lgx-module
dwdm-1u-rack-mount-mux-demux
Type
Steel Tube Device
Compact Box
ABS BOX
LGX
Rack Mount
1*2
Φ5.5mm×38mm
44*28*7 mm
100*80*10.5 mm
132*102*29 mm
1U 19"
1*4
/
44*28*7 mm
100*80*10.5 mm
132*102*29 mm
1U 19"
1*8
/
44*28*7 mm
100*80*10.5 mm
132*102*29 mm
1U 19"
1*16
/
50*38*7 mm
140*110*18 mm
132*102*29 mm
1U 19"

Note:

Customized package is acceptable!

Order Info

CWDM: AA-B-C-DDDD-E-F-GGG

AA B C DDDD E F GGG
Number of Channels Configuration Package 1st Channel Cable Type Cable Length In/Out Connector
02= 2 Channels M=Mux B=ABX Box 1270 0=Bare fiber 0=0.5m SCU=SC/UPC
04= 4 Channels D=Demux C=Compact Box 1290 1=900um 1=1m SCA=SU/APC
06= 6 Channels L=LGX 1310 2=2.0mm 2=2m LCU=LC/UPC
61= 6+1 Channles R=1U Rack Mount 1330 3=3.0mm 3=3m LCA=LU/APC
08= 8 Channels S=Steel Tube 1350 Customized 4=4m FCU=FC/UPC
81= 8+1 Channels Customized FCA=FC/APC
16= 16 Channels 1590 Customized Customized
18= 18 Channels 1610

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