Gold Member Since 2009
Audited Supplier
Hangzhou Softel Optic Co., Ltd.

Externally Modulated Transmitter, 1550nm Optical Transmitter, Fiber Optical Transmitter manufacturer / supplier in China, offering High Power CATV 1550nm Externally Modulated Transmitter, Rg11/Rg59/RG6 Cables F Connector Compression Crimping Tool, Self-Supporting FTTH Outdoor Drop Cable and so on.

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Supplier Homepage Product Fiber Optical Transmission High Power CATV 1550nm Externally Modulated Transmitter

High Power CATV 1550nm Externally Modulated Transmitter

FOB Price: US $985 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $985/ Piece
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Production Capacity: 300pieces Per Month
Transport Package: Each Pieces with Polyfoam, Then Double Brown Box
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: ST1550E-xx
  • Wiring Devices: Optical Transmitter
  • Condition: New
  • Return Loss: ≥50
  • Laser Brand: Jdsu/Ortel/Aoi
  • Connector: Sc/APC or FC/APC
  • Size: 19X17X1.75"
  • Quality Warranty: 1 Year
  • Specification: 19x17x1.75"
  • HS Code: 85176229
  • Type: Optical Transmitter
  • Certification: CE
  • Application: CATV System
  • Fiber out: Single Port/Multiport
  • Power: 220V/110V
  • Each Fiber out: 3-11dB
  • Transmitter Mode: Agc/Mgc Mode
  • Trademark: SOFTEL
  • Origin: China
Product Description
Externally Modulated CATV 1550nm Optical Transmitter

1. Characteristic:
High performance: Externally modulated technology, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 40~862MHz.
1+1 powers supply back, up hot-plug function available.
Narrow bandwidth (0.65MHz), lower noise, DFB continuous wave laser, is propitious to reduce the influence of the dispersion.
The operating bandwidth is up to 47~1080MHz.
CNR ≥ 53dB and excellent CTB, CSO index.
SBS: 13~18dBm adjustable.
ITU standard wavelength, ± 200GHz (± 1.6nm) adjustable.
AGC/MGC mode is optional at spot. OMI can be optimized at spot.
Perfect RS232 communication interface.
Advanced SNMP network management function.
Casing temperature auto-control.
Excellent P/P ratio.

2. Summary:
When ST15xx fiber optical transmitter is applied in the multi-channel transmission, the laser's chirp effect will react
With the link dispersion of the fiber. There will be distortion on the receiver. If working with the EDFA, there will be
Serious CSO deterioration. The distortion and deterioration will increase with the longer distance and more channels.
1550nm internal modulation CATV optic transmitter, has the chirp and dispersion compensation inside, and improves
The system index greatly. It can be used in the town where the fund is shortage and the distance is less than 10Km as a transition solution.

3. Test Condition:
Test link path is formed of standard fiber and standard optical receiver. Under the condition of prescriptive link loss,
Laser transmitter modulation depth of each channel being 3.6%, set 59 PAL-D simulative TV channels signal at 47~550MHz
And 33 QAM64 digital modulated signal at the range of 550~750(862) MHz, output level of digital modulated signal is lower 6dB than of simulative signal carrier wave.

Principle Drawing
5Order Direction

*Model nomination explanation please reference 1310nm laser transmitter equipment model nomination explanation.

6Accessories
PerformanceIndexSupplement
Optic featureLaser wavelengthnm1550±10 
Linearity widthMHz≤1λ
Equivalent noise intensitydB/Hz≤-160RIN 20~1000MHz
Side mode suppression ratiodB≥35SMSR
Extinction ratiodB≥20Xp
Output powerdBm2×7, 2×9, 2×10, 2×5, 4×7,6×7
SBS restraindBm≥17 
Return lossdB≥60 
Optic fiber connector FC/APCSC/APC or E-2000
RF featureWork bandwidthMHz45-862 
Input leveldBmV18~28AGC
FlatnessdB≤±0.7545~862MHz
Return lossdB>1645~750MHz
Input impedanceΩ75 
Link featureTransmit channel PAL-D/60ch 
CNRdB≥5110Km optic fiber,0dBm receive
CTBdB≤-65 
CSOdB≤-60 
 
General featureNetwork interface port RJ45,R232Support I.E. & SNMP
Power supplyV90~265 city power-48VDC optional
Power ConsumeW≤50Single power works
Work temp.°C-5~65Machine temp controlled automatically
Storage temp.°C-40~85 
Work relative temp.%5~95 
Size"19×10×1.75WxDxH
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