Laser Transmitter Module - for OCMR

About the Product

The LTM13 Multi Quantum Well (MQW) Distributed Feedback (DFB) laser transmitter module has been designed for cable television and HFC broadband applications. The LTM13 module easily fits into the OCM chassis with plug and play technology to suit a variety of applications.

The laser transmitter module is available in optical power levels from 2 dBm to 15 dBm.  The unit offers superior frequency response, distortion and noise characteristics. The LTM13 incorporates specialised circuitry to deliver the best possible CTB and CSO performance up to 1000 MHz.

There is also a return path version of this transmitter with a bandwidth of 5 MHz to 220 MHz. The return path transmitter includes a 4.5 MHz pilot tone generator for system alignment.

The LTM13 employs the latest in broadband linear amplifier technology. In addition, it is a leading edge opto-electronic design for the delivery of high-quality transmission, in both analogue and digital formats, over fibre optic networks.

Microprocessor based status monitoring and control is available for operation from the local OCM keypad or remotely via the network, using the PBN NMS3 network management software.  All module settings are retained in NV memory to ensure trouble free operation.

Features

• Plug and play OCM module.
• High quality 1310 nm cooled MQW DFB cable television laser with superior RF driver circuitry.
• RF amplifier gain blocks with advanced GaAs technology for better performance.
• Suits CENELEC and NTSC standards up to 110 channels (both analogue and digital).
• Frequency response of 45 MHz to 1000 MHz for forward path transmitter, or 5 MHz to 220 MHz for return path transmitter.
• Remote monitoring and laser shutdown facilities via network management system or module status port.
• Local laser shutdown via the OCM keypad or the module status port.
• Alarm monitoring via module status port and network management system.
• Automatic gain control for constant optical modulation index (OMI)
• Automatic Peltier thermo-cooler control for constant laser temperature.
• Automatic laser power control for constant optical output.