GLsun 12 Wavelengths WDM Module for 5G Fronthaul

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PN: 12 Wavelengths WDM Module
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12 wavelengths CWDM is coarse wavelength multiplexing/demultiplexing module combined with optical switch. Support bidirectional 12 CWDM wavelengths each wavelength has PD for optical power detection. The COM port supports primary backup optical path switching bidirectional optical power detection.


  • Low insertion loss
  • Small module dimension
  • Excellent reliability


Semi-active WDM: Passive colorful optical modules multiplexer/demultiplexer units are deployed at AAU side, active WDM equipment is deployed at DU side. Multiple AAUs share a fiber for transmission, no power supply is required at the remote end.

In 4G era, because of low requirements for protection monitoring, passive CWDM has been widely used due to its mature industry chain, power-free, plug--play features. However, after entering 5G era, in the face of the contradiction between the high reliability of 2B service, the management of massive CRAN networks, the limited number of operation maintenance personnel, the application of semi-active technology has become a solution for how to meet new requirements of 5G era.

Semi-active CWDM is based on passive CWDM, adding coupler, optical switch PD core unit to realize line protection local side optical power detection functions.

Quality Certifications
Quality Testing

Spectrum Testing

Wavelength Test

C-band Wavelength Testing

O-band Wavelength Testing

Production Workshop

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