1.1550nm Optical transmitter
2.With externally modulated
3.SNMP management function optional
4.Low dispersion distortion
HT8500AC(CATV wavelength)
HT8500AU(ITU wavelength adjustable)
Standard type catv 1550nm Externally Modulated Optical Transmitter
(47~862MHz, CNR1≥53dB, SBS: 13, 16, 18dBm adj.)
1550nm externally modulated optical transmitter is the core equipment in this system. RFTV is a unidirectional analogue and digital video broadcast. It adopts high efficiency modulation mode for RF carrier wave and its economy, flexibility and bandwidth validity is beyond comparison of IPTV. Adopting EPON or P2P access mode to realize triple-play, FTTx , RFTV broadcasting network in 1550nm optical transmitter wavelength still plays an important role.
Product features
High performance: no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 40~862MHz in-band.Narrow bandwidth (Typ.=1MHz), lower noise, DFB continuous wave laser.The operating bandwidth of optical transmitter is up to 47~1080MHz.Perfect index: Unique innovation technology, provide excellent CNR, CTB, CSO & SBS.
Technical index
Performance | Index | Supplement | |||
Optic feature | Operating wavelength | (nm) | 1540~1563 | HT8500AC | |
ITU-TG.692 | HT8500AU | ||||
Wavelength adjustable range | (nm) | ±1.6 (±200GHz) | HT8500AU | ||
Wavelength adjustable mode |
| ±0.05nm stepping | HT8500AU | ||
Linewidth | (MHz) | ≤1 | FWHM(Δλ) | ||
Side mode suppression ratio | (dB) | ≥45 | SMSR | ||
Equivalent noise intensity | (dB/Hz) | ≤-160 | RIN (20~1000MHz) | ||
Output power | (dBm) | 2×5 | Optional 2 ×3, 2 ×6, 2 ×7, 2×9 | ||
Return loss | (dB) | ≥60 |
| ||
optical fiber connector |
| SC/APC | Optional FC/APC, LC/APC | ||
RF feature | Work bandwidth | (MHz) | 47-862 | 47~1000, 47~1080 optional | |
Input level | (dBmV) | 18~28 | AGC | ||
Flatness | (dB) | ≤±0.75 | 47~862MHz | ||
≤±1.5 | 862~1000MHz (Optional) | ||||
Return loss | (dB) | >16 |
| ||
Input impedance | (Ω) | 75 |
| ||
RF port |
| F-Female |
| ||
Link feature | Transmit channel |
| PAL-D/60CH | PAL-D/99CH |
|
CNR1 | (dB) | ≥53.0 | ≥51.5 | Back to back | |
CNR2 | (dB) | ≥51.5 | ≥50 | 50Km optical fiber, 0dBm receive | |
CTB | (dB) | ≤-65 | ≤-65 |
| |
CSO | (dB) | ≤-65 | ≤-65 |
| |
SBS restrain | (dBm) | 13,16, 18 | Adjustable | ||
General feature | SNMP network management interface |
| RJ45 |
| |
Communication interface |
| RS232 |
| ||
Power supply | (VAC) | 90~265 | 50/60Hz | ||
(VDC) | -48 | 30~72 | |||
Power Consume | (W) | ≤50 | Single power works | ||
Work temp. | (°C) | 0~50 | Machine temp. control automatically | ||
Storage temp. | (°C) | -40~85 |
| ||
Operating relative humidity | (%) | 5~95 |
| ||
Size | (") | 19×14.5×1.75 | (W)x(D)x(H) | ||
