The QAMnet DMLT-1550-HP series high power laser transmitters are cost effective, space saving solutions designed for HFC, FTTH and deep fiber applications.
Product Overview
The QAMnet DMLT-1550-HP series high power laser transmitters are cost effective, space saving solutions designed for HFC, FTTH and deep fiber applications. The DMLT-1550-HP uses a highly linear, low chirp DFB laser module and an advanced pre-distortion RF circuit to deliver 50 dB of CNR, while maintaining optimal CSO and CTB distortion specifications. The output power level is amplified by an internal EDFA of up to +23 dBm.
The DMLT-1550-HP has transmission range up to 20 km. DMLT-1550 transmitters support up to 75 NTSC analog channels since it is designed to be digitally ready, the DMLT-1550-HP can be loaded with 60 additional QAM modulated signal channels.
The DMLT-1550-HP is available at these output power levels: +15 dBm, +18 dBm, +20 dBm and +23 dBm.
Applications
- HFC
- FTTH
- Deep Fiber Applications
Features
- Built-in EDFA to boost output level
- Highly linear, low chirp 1550 nm DFB laser source
- Pre-distortion circuit minimizes CSO and CTB distortion
- Automatic Gain Control (AGC) for optimal RF drive level (optional)
- 75 channel NTSC plus 60 digital channels loading plan
- -20 dB front panel RF test port
- Transmission range up to 20km
- 45-870 MHz modulation bandwidth
- Compact 1U housing
| Feature Name | Description |
|---|---|
| Technical Specification | |
| Laser Wavelength Range | 1550 nm ± 15 nm, Specific Wavelength on ITU Grid optional |
| Transmission Range | Up to 20 km in SMF-28 fiber |
| Output Power Level | +15 dBm, +18 dBm, +20 dBm, +23 dBm |
| Number of Outputs | 1 output standard, up to 4 output can be customized |
| Optical Return Loss | 50 dB min. |
| Carrier to Noise Ration (CNR) | 51 dB typ. @ 0 dBm |
| Composite Second Order (CSO) Distortion | -60 dBc max. |
| Composite Triple Beat (CTB) Distortion | -63 dBc max. |
| SBS Suppression Level | +18 dBm min. |
| RF Test Port Ratio | -20 dB |
| AGC Adjustment Range | 6 dB (optional) |
| Input RF Power Level | 17 to 23 dBmV per channel |
| Frequency Range | 45 MHz to 870 MHz |
| Flatness in Frequency Range | ±0.75 dB |
| Input Impedance | 75 Ω |
| Input RF Return Loss | 16 dB min. |
| Mechanical Specification | |
| Operation Temperature Range | 0°C to +50°C |
| Storage Temperature Range | -40°C to +70°C |
| Power Supply | 80 – 240 V, 43 – 63 Hz AC |
| Power Consumption | 80 W max. |
| Housing Dimensions | 1RU 19”(W) x 14”(D) x 1.75”(H) |
| Control / Monitoring | Laser Temperature and Current |
| Display | Output Power Level, TEC temperature |
| Alarm | Over Temperature , Over Current |
| Optical Connectors | SC/APC or Customer Specified |
Product Requests and Consulting
If you would like more information about QAMnet Products or Custom Solutions, please Submit a Product Request.
If you'd like to contact QAMnet directly, you can reach a sales representative at 1-877-303-3888 (602-343-8215 outside North America) or email (JavaScript must be enabled to view this email address).