CWDM Module/Chassis
Coarse Wavelength Division Multiplexing, 20nm channel spacing, pass band ITU +/- 7 nm, high isolation, low insertion loss, package, connector/adapter, single COM port or dual COM port per customer define
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Product Overview
CWDM, Coarse Wavelength Division Multiplexing, 18 wavelengths ITU defined to use for optical signals transmission

Specification

Example: Coarse Wavelength Division Multiplexing, 20nm Channel Spacing,Single Fiber Bi-Direction, 4 Services, 8 Wavelengths with/without EXP(upgrading)/MON(monitoring) port, Low insertion loss, high isolation

Parameter

Unit

SPEC

Channel spacing

nm

20

Number of Channels

ch

8 or 8+MON or 8+EXP

Central Wavelength

nm

1471, 1491, 1511, 1531, 1551, 1571,

1591, 1611

Operating bandwidth

nm

ITU±6.5

Ripple in Passband

dB

0.4

Monitoring Port Power Rate Percentage

\

5%

Channel Insertion Loss (with connector)

dB

3.0

<3.5 (with MON port)

End To End Insertion Loss (with connector)

dB

4.0

<5.0 (with MON port)

EXP Port Insertion Loss

dB

3.0

<3.5 (with MON port)

EXP to COM Isolation

dB

13

Isolation

Adjacent channel

dB

≥ 30

Non-adjacent channel

dB

≥ 40

Polarization Dependent Loss

dB

≤ 0.15

Polarization Mode dispersion

ps

≤ 0.20

Return Loss (with connector)

dB

≥ 45

Directivity

dB

≥ 50

Insertion Loss Temperature Stability

dB/°C

≤ 0.005

Temperature Wavelength Drift

nm/°C

≤ 0.005

Recommend Operation Environment

Power Handling

mW

500

Tensile Load

N

5

Operating Temperature

°C

-5 ~ 70

Storage Temperature

°C

-40 ~ 85

Relative Humidity

%

95

Package Specification

Fiber Type

Corning SMF-28e or equivalent

Connector Type

COM

SC/UPC or customer specify

CWDM channels

SC/UPC or customer specify


Main Features

  • Based on thin film filter technology
  • Cost-effective WDM technology
  • High channel isolation
  • High stability and excellent reliability
  • High durability
  • Low insertion loss
  • Low polarization dependent Loss
  • Wide operating wavelength range
  • Ultra flat wide pass band
  • Telcordia compliant
  • RoHs compliant


Application Scenarios

  • Single direction/Bi-direction
  • Metro/Access optical network
  • Unidirectional network traffic rings
  • Enterprise networks
  • FTTH application
  • CWDM systems


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