1.1550nm CATV optical transmitter 2.Wavelength adjustable:+/-1.6nm 3.Freq:47~862MHz 4.CNR >= 52dB 5.SBS:13,16,18 Adjustable Product overview OPT-1550E-W Series is wavelength-adjustable type of high-performance 1550nm external modulation optical transmitter. It is mainly applied in WDM system, fiber access, optical modulation , network upgrade and extension. Max adjustable range +/-1.6nm, divided into 64 steps, stepping 0.05nm each. Mounted in standard 1U, 19’’ chassis, Adopting imported low noise DFB laser as signal source, and high-linearity LiNb03 external modulator as signal modulation , It can provide high-quality images, digital or compressed digital signal long-distance transmission for cable television and telephone communications. Features (1) High quality: original system optimization control technology and RF pre-distortion technology ensure that the system can acquire the maximum CTB, CSO, and SBS targets in the case of excellent performance CNR. (2) Flexibility: In ensuring the high performance system CSO, the phase modulation technology of external modulator maximize the optical power into the fiber in order to obtain long-distance transmission, and the field adjustable SBS threshold, 13,16,18, may apply a different network transmission. (3) Reliability: The 19 "1U standard rack, built-in high-performance dual switching power supply, it can work in the backup at 85 ~ 265Vac City Network Voltage, MS-level automatic switching; chassis cooling automatic temperature control. (4) Intuitive: The laser is the most expensive machine components, machine equipped with microprocessor monitors the working state of the laser, the panel LCD window displays the operating parameters. (5) Network type: Select All-piece status monitoring transponder guarantee to meet the national standard and be compatible with the SCTE HMS standard, it enables network management monitoring capabilities. Technical specification
| Item | Units | Parameter | Note |
| Laser type | DFB laser | ||
| Wavelength | nm | 1550±10 | |
| W/L adjustable range | nm | ±1.6 | 0.05nm stepping |
| Optical Modulation | External modulation | ||
| OMI | 3%±0.25% | ||
| Optical output power | dBm | 2X5, 2X6,2x7,2x8,2x9 | |
| SBS threshold | dBm | 16.5 | Optional 13,16,18 |
| Optical Connector | SC/APC or FC/APC | Can be specified before ordering | |
| Optical return loss | dB | ≥60 | |
| Frequency range | MHz | 47~750(862) | |
| Flatness | dB | ±0.75 | |
| RF input level | dBuV | 75~85 | AGC automatic control |
| CNR | dB | ≥52.0 | |
| C/CTB | dB | ≥65.0 | |
| C/CSO | dB | ≥65.0 | |
| RF input impedance | Ω | 75 | |
| RF Input Return Loss | dB | >16(47~862)MHz | |
| Voltage | V | 90~265VAC | Optional -48VDC |
| Power consumption | W | ≤50 | Single-supply operation |
| Working Temperature | °C | 0~50 | Automatic temperature control |
| Storage temperature | °C | -20~85 | |
| Relative humidity | % | 20%~85% | |
| Size | ″ | 19″×11″×1.75″ | (W)x(D)x(H) |
| Network management interface | RJ45 | Supporting the browser and SNMP | |
| weight | Kg | 5.0 | |
| Note:1) In the condition of stipulated link-loss, configured in 59 PAL-D analog television channel signals within 550MHz frequency, in the range of 550MHz ~ 750 (862) MHz frequency transmit digital modulation signals, digital modulation signal level ( in 8MHz bandwidth) is 10dB lower than the analog signal carrier level, when the optical input power is 0dBm, you can measure the carrier combination triple beat ratio (C / CTB), carrier combination of second-order beat ratio (C / CSO) and the carrier to noise ratio (C/CNR) 2)Fiber: 50KM+EDFA | |||
| Model | 1550nm External Modulation Optical Transmitter(wavelength adjustable ) SBS=13/16/18,CNR≥52 |
| OPT-1550E-W-1X5 | Single optic port, Optical power≥5dBm |
| OPT-1550E-W-1X7 | Single optic port, Optical power≥7dBm |
| OPT-1550E-W-2X5 | Dual optic port, each port optical power≥5dBm |
| OPT-1550E-W-2X6 | Dual optic port, each port optical power≥6dBm |
| OPT-1550E-W-2X7 | Dual optic port, each port optical power≥7dBm |
| OPT-1550E-W-2X8 | Dual optic port, each port optical power≥8dBm |
| OPT-1550E-W-2X9 | Dual optic port, each port optical power≥9dBm |
Wavelength Adjustable 1550nm External Modulation CATV Optical Transmitter OPT-1550E-W
