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Emcore Develops 1550nm DFB Laser Module For CATV

The 1752 laser platform features 1.2 GHz operational bandwidth with low adiabatic chirp to maximise signal quality in short and long lengths of fibre
Emcore Corporation has released the 1752A 1550 nm DOCSIS 3.1 DWDM DFB laser module for CATV (Cable Television) applications.

The new 1752A is the latest model in Emcore's 1550 nm QAM laser platform and is fully compliant with the new DOCSIS 3.1 standard, supporting operational bandwidth up to 1.2 GHz.



1752A 1550nm laser module

DOCSIS (Data Over Cable Service Interface Specification) is the standard that facilitates the addition of high-speed data transfer over existing CATV systems for internet access through cable television services. DOCSIS 3.1 is the latest version and is designed to deliver several new benefits to cable companies including greater capacity and speed.

It allows for up to 50 percent more data throughput over the same spectrum to deliver up to 10 Gbps downstream and 1 to 2 Gbps upstream. DOCSIS 3.1 also decreases the cost-per-bit for data delivery by improving the efficiency of spectrum use, and it increases the energy efficiency of cable modems.

The 1752 laser platform has been designed specifically for CATV applications and the latest DOCSIS 3.1 standard.  It features 1.2 GHz operational bandwidth with low adiabatic chirp to maximise signal quality in short and long lengths of fibre. 

The 1752A is available in a wide range of ITU grid wavelengths and operates over an industrial temperature range.  The laser's iis designed to minimise degradation of broadcast signals caused by Quadrature Amplitude Modulated (QAM) channels.

"We are very pleased to introduce our first DOCSIS 3.1 laser module bringing Emcore's leading-edge highly-linear DFB laser technology to the latest standard in the CATV industry," says Jaime Reloj, Vice President of Business Development for Emcore. "The 1752A DOCSIS 3.1 laser is a key enabling component allowing our customers to provide fully DOCSIS 3.1 compliant systems," adds Reloj.

All Emcore lasers utilise the highly-linear, directly-modulated DFB technology which has become synonymous with the high quality, high-speed photonics that drove the wide-scale deployment of fibre optics in CATV networks, satellite earth stations and mobile phone antenna sites.





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