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XYT-CWDM-3ort-02 【NO.】CWDM-3ort-26Nv02
Thin-Film Filter (TFF) 3-Port CWDM Single-Mode Fiber Multiplexer（1270~1610nm）
l Low insertion loss l center wavelength：1270~1610nm
l High stability and reliability l SMF-28e
l Compact structure l Bare fiber, sleeve, and joint types are optional
l Center wavelength optional l Acceptable power options
l Multiple customizable options
CWDM (TFF) wavelength division multiplexer is a device that can couple two or more different wavelengths of optical signals in one core fiber for transmission, and vice versa, can separate and demultiplexing two or more different wavelengths of optical signals in one core fiber separately. As shown in the figure, two different beams of light are input from the common end. WDM devices allow one specific wavelength of light to be transmitted and output at the transmitting end, while the remaining wavelengths are reflected and coupled to the reflecting end for output, which is the process of light splitting. Similarly, the optical path of WDM devices is reversible.
Dielectric film filter (TFF) adopts the principle of thin film interference, which causes strong reflection of certain wavelengths of light on the thin film and prevents it from passing through, while other wavelengths of light can pass through the thin film. To improve reflection efficiency, dielectric film filter chips usually use multiple layers of thin films (usually 50-100 layers), which interfere with each other to pass a certain wavelength and reflect other wavelengths.
Insertion loss calculation: the ratio of optical power between input and output ports
Structural type | 1x2 | |
Center wavelength (nm) | ITU or ITU+1 | |
Wavelength range (nm) | 1270~1610 | |
Channel spacing (nm) | 20 | |
Bandwidth range (nm) | ±6.5/±7.5 | |
Transmission wavelength | Insertion loss (dB) | ≤0.6 |
Adjacent isolation (dB) | ≥30 | |
Non adjacent isolation (dB) | ≥45 | |
Reflection wavelength | Insertion loss (dB) | ≤0.4 |
Isolation level (dB) | ≥14 | |
Return loss (dB) | 45 | |
Directionality (dB) | 50 | |
Enduring power (W) | 0.5、1、5 | |
Connector Type | FC/APC or other | |
Fiber optic type | SMF-28e | |
Fiber length (m) | 1 meter or customized | |
Package size (mm) | 35 x Ø5.5 | |
ABS box | ||
Working temperature (℃) | -5~+70 | |
Storage temperature (℃) | -40~+85 | |
Maximum tensile force (N) | ≤5 | |
* The specification is without a connector, and the test data indicator is 25 ℃.
* For devices with connectors, the insertion loss is 0.3dB higher and the return loss is 5dB
* For different power parameters, the product adopts different packaging sizes.
Packaging structure diagram (mm):
Spectrum diagram (dB):
Ordering Notice: | |
Model | Description |
XYT- CWDM-1x2-27-Se-0.9-1M-N -05 | CWDM, 1x2 structure, transmission wavelength: 1270nm, SMF-28e fiber, sleeve 900 μm, fiber length 1 meter, no connector, capable of withstanding a power of 0.5W. |
Special requirements for specifications and parameters, contact the engineer for customization | |
Ordering information: | ||||
CWDM= Wavelength Division Multiplexer | XYT-CWDM-A-B-C-D-E-F-G | |||
A= Structural type | 1X2=1X2 | …… | SS= customizable | |
B= wavelength | 27=T1270nm | 29=T1290nm | …… | S= Optional |
C= Fiber optic type | Se= SMF-28e | S= customizable | ||
D= Type of casing | 0.25=250μm | 0.9=900μm | …… | S= Optional |
E= Fiber length | 1M=1 meter | 2M=2 meter | …… | SS= customizable |
F= Connector Type | FA=FC/APC | SA=SC/APC | N=None | S= Optional |
G= Enduring power | 05=0.5W | 1=1W | …… | S= Optional |
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