WDM Optical Receiver
Factory in China
Premlink plays a vital role in designing and manufacturing FTTH WDM Optical Receiver.
Premlink – WDM Optical Receiver Factory in ChinaÂ
CATV optical receiver is designed specifically for use in cable television HFC systems. An optical receiver’s key component is a pin diode, which converts the input optical signal into RF signals. When a optical signal is shined onto a Pin diode, photon energy is transformed to electron energy, resulting in an electric current.
The structure of a pin diode causes the current to be appropriate to the intensity of the received optical power, and it can receive optical signals of various frequencies and convert them into an equivalent electrical signal.Â
CATV optical receiver converts the optical fiber signal into an electrical signal and performs signal processing (e.g., amplification, filtering) to improve signal quality and stability for normal television playback. The processed signal is then distributed to multiple end users.Â
CATV optical receivers exhibit great sensitivity, low noise, and outstanding stability. It can accept weaker optical signals and convert them into stable electrical signals for output. These properties have resulted in a widespread use of cable TV receivers in cable television systems.Â
WDM Optical Receiver is the CATV optical receiver integrated FWDM with an InGaAs pin diode. This FWDM + pin diode can transfer 1550nm CATV signal into an elecrtoric RF signal to TV and pass through GPON or XGSPON signal to xPON ONU.Â
Premlink, the leading WDM optical receiver factory in China, is engaged in the design and manufacturing of all kinds of WDM optical receivers in its long hisotry.Â

Premlink Related WDM Optical Receiver
WDM Optical Receiver vs. Optical Receiver without WDM

Block Diagram of WDM/NO WDM Optical RecieverÂ
( Set PL150D as an example)Â
The WDM type is currently a very popular device which integrates FWDM components internally in Pin Diode. This FWDM component splits the 1550nm signal for RF and passes through 1310/1490nm or/and 1270/1577nm for xPON (GPON or/and XGSPON)Â services.Â
It has two optical connection interfaces, one for connecting combined optical signals and the other for connecting PON signals.Â
No WDM type, as the name suggests, does not have WDM components, which means it is a regular typical optical node/receiver  with wavelength window of 1100nm ~ 1600nm.Â
The other one is that the receiver blocks PON signals. As it may receive COM optical signals, which contain the PON wavelength of 1490nm, it interferes with 1550 signals. By filtering out PON signals and directly receiving 1550nm signals, the quality and stability of the signals are ensured.Â
Customization Service from PremlinkÂ
Premlink, the top WDM optical receiver factory, provides a number of customization services for WDM optical receivers, including plastic and aluminum housing, varied output levels at 76 / 85 / 90dBuV, built-in ATT or EQ, small or medium size, and module or stand-alone configuration. Furthermore, our WDM optical receivers are designed for simple, quick, and convenient installation. Our SOP guide the manufacturing process for our optical receiver, which is subjected to strong inspection to assure the highest level of quality.Â

CATV WDM Optical Receiver ApplicationsÂ
The WDM optical receiver is widely used in Triple-play networks (CATV+ Internet Data+ VoIP) to receive and convert TV broadcasting signals supplied via optical fibers into electrical signals for further signal processing and distribution, to pass through Internet Data/VoIP to ONU at end user. See as below. As a WDM optical receiver factory, Premlink can provideb the full solution for this application.
