Externally Modulated Laser Transmitter 1550nm

About the Product

The Light Link® Series 2 externally modulated laser transmitter for 1550 nm wavelengths is designed as a professional solution for long line CATV delivery.  The unit delivers excellent performance on long haul fibre with dispersion shifted to 1550 nm.  The transmitter also operates very well in systems with legacy non-dispersion shifted fibres, optimised for 1310 nm.

The externally modulated laser transmitter provides a chirp free mode of operation with a very narrow optical line width. This allows the use of 1550 nm wavelength for the transmission of broadband CATV, whilst maintaining excellent CNR, CSO and CTB performance throughout the network.

The LTE153-8000 externally modulated laser transmitter is packaged in a self-contained 19” sub rack housing of 1 RU, with lateral cooling and an option for dual redundant power supplies.

The transmitter features field adjustable dispersion compensation to optimise performance for optical line drive levels between 13 dBm and 19 dBm.   The standard unit operates on 1551 ± 5 nm with an option for DWDM lasers specified from the ITU grid.  Multiple DWDM laser transmitters can be combined for transmission through a single optical amplifier.    

An integrated SNMP agent makes remote management and monitoring possible through an RJ45 network connection.   A large LCD readout is provided for local management.

The transmitter employs the world's best practice in state-of-the-art devices.  Like all PBN products, reliability and excellent performance is guaranteed.

Features

•  Externally modulated transmitter with low dispersion distortion.
• RF pre-distortion circuit for excellent CSO and CTB performance with low distortion parameters.
• Designed for long haul applications, as well as for short haul FTTH customer access networks.
• Designed to support up to 89 PAL channels or 110 NTSC channels.
• Flat RF frequency response for 45~1003 MHz.
• Option for dual redundant universal mains power supplies.
• Field adjustable Stimulated Brillouin Scattering (SBS) suppression.
• Field adjustable dispersion compensation.
• Suits 13~19 dBm fibre line drive levels.
• Front panel LCD for local monitoring of transmitter status.
• Integrated SNMP agent with RJ45 Ethernet port for remote monitoring.
• Lateral cooling with field replaceable rear mount fans.
• RF input on rear panel, optical outputs on front panel.
• Safety key switch on front panel.
• 2 models available, with 2 x 7 dBm optical output or 2 x 10 dBm optical output.