Telecom & Datacom

Fiber Dispersion Control

Dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency (wavelength). It is sometimes called chromatic dispersion due to the wavelength dependency nature. This issue becomes prominent for higher data rate (shorter pulse width) as well as longer transmission distance.
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LDCM DISPERSION COMPENSATION MODULE

Other than fiber link attenuation, dispersion is another major factor which limits the transmission distance of 1550nm band of optical fiber system, particularly for long haul transmissions. Lightem LDCM series dispersion compensation fiber module, is negative dispersion compensation based on optical fiber technology, can effectively compensate for G.652 standard single-mode fiber transmission band of 1525 ~ 1565nm dispersion and dispersion slope characteristic.
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Features
  • Suitable for standard single mode optical fiber G.652, 1525~1565nm transmission channel
  • Excellent dispersion compensation feature can eliminate the influence to system’s index, because of residual dispersion
  • G.652 100% C band dispersion compensation fiber
  • Dispersion compensation value range is 10~120Km optional
  • Low insertion loss
  • Low polarization mode dispersion
  • Excellent performance price ratio
Specifications
Optical Parameters Min Typ Max Unit Remark
Operating wavelength range
1525
1565
nm
C Band
Pass Power
30
20
dBm
Effective Area
1.4¡Ñ10-9
m2
Nonlinearity
+6
(n2/Aeff)
Optical connector
SC/APC, FC/APC
Return loss
-45
dB
Residual dispersion slope
0.00299
0.00360
0.00421
nm-1
Polarization dependence loss (PDL)
0.1
dB
Working temperature
-5
+70
°C
Storage temperature
-40
+85
°C
Operating humidity
95
%
Storage Humidity
85
%
Dimensions (W)×(D)×(H)
483x 279x 44
mm
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