Cascading Magnification High Power Optical Amplifier For Fiber To The Home Projects
Summary
 
With the implementation of Broadcast Whole-Optical-Network Transmission Fiber To The Home projects (FTTH), When EDFA is used as a Cascading Magnification Device in the CATV system, the C/N system will deteriorate seriously, So the EDFA should have High Saturation Output Power and Low Distortion, Then EYDFA(Erbium-Ytterbium-Doped Optical Amplifier) double cladding High Power Optical Amplifier can perfectly meet the demand of the nowadays FTTH and FTTB networks.
 
Features
 
Performance Parameters
 
| Items | Units | Performance Parameters | 
| Optical Working Wavelength | nm | 1535~1565 | 
| 
			 Input Optical Power Range  | 
			dBm | -3~+10/+3 | 
| MAX/MIN Warning Values | dBm | +10/+2~-10 front panel optical alarm, ≤-10 shut down | 
| Noise Factor | dB | ≤5.0 (0 dBm,@1550nm) | 
| 
			 Output Optical Power Stability  | 
			dB | <±0.5/<±0.3 | 
| 
			 Polarization Sensitivity  | 
			dB/Ps | <0.2/<0.5 | 
| 
			 Input/Output  | 
			dB | ≤-30/≤-30 | 
| Optical Input and Output Reflection Loss | dB | >45 SC/APC (Stepped End-Face) | 
| Rated Output Power | dBm | ≥Nominal Value(Details Refer to Specification Descriptions ) | 
| CNR/CTB/CSO | dB | ≥48/≥63/≥63(Notes 1) | 
| Power Supply/Power Voltage | V/W | Indoor EYDFA: AC165~265 City Electricity or DC-48V/40(Double Power Working) | 
| Working/Storage Temperature | ℃ | -20~50/-30~70(Relative Temperature 5~90%) | 
| Box Size | mm | Indoor EYDFA 2U: 88×482.6×387 | 
| 
			 Network  | 
			/ | RJ45(Follow the Network Management National Standards, and Support WEB Browser) | 
| 
			 Notes:  | 
		||
Application Design
 
1550nm CATV&EPON Signal Integrated Single Optical Fiber To The Home
| 10km/-12point-to-point power, 64DTH design | to first level optical splitting | to second level optical splitting | to third level optical splitting | third level optical splitting to FTTH(included 0.75dB WDM loss) | ||||||
| power | connecting point loss | WDM | 5km | 4optical splitting | 3km | 4optical splitting | 1km | 4optical splitting | 1km | point-to-point power | 
| CATV≧15dBm | 0.5 | 0.75 | 1.25 | 7.5 | 0.75 | 7.5 | 0.25 | 7.5 | 1 | -12dBm | 
| EPON≧1dBm | 0.5 | 0.75 | 1.25 | 7.5 | 0.75 | 7.5 | 0.25 | 7.5 | 1 | -26dBm | 
Description: calculated from the above table calculation can be obtained that the EPON signal with the under 64DTH, CATV each signal only need 15dBm.
1550nm CATV&GPON Signal Integrated Single Optical Fiber To The Home
| 10km/-12point-to-point power, 128DTH design | to first level optical splitting | to second level optical splitting | to third level optical splitting | third level optical splitting to FTTH(included 0.75dB WDM loss) | ||||||
| power | connecting point loss | WDM | 5km | 8optical splitting | 3km | 4optical splitting | 1km | 4optical splitting | 1km | point-to-point power | 
| CATV≧18.5dBm | 0.5 | 0.75 | 1.25 | 11 | 0.75 | 7.5 | 0.25 | 7.5 | 1 | -12dBm | 
| GPON≧2.5dBm | 0.5 | 0.75 | 1.25 | 11 | 0.75 | 7.5 | 0.25 | 7.5 | 1 | -28dBm | 
Description: calculated from the above table calculation can be obtained that the GPON signal with the under 128DTH, CATV each signal only need 18.5dBm.
 
Order Info.
| Product Name | Model | Functional Description | 
| FWDM EYDFA | YGF156416C | 19’’ 2U standard cabinet, -5~+10dBm input, 16ways nominal specification(18, 19, 20, 21, 22, 23, 24dBm)amplifier output, and support down-2dB, safety connection mode, NF≤5dB(when 0dBm); FWDM combiner integrated, WDM loss≤1dB; dual-module hot plug power supply, AC90~255V or DC-48V power supply, RJ45 standard network management system(support SNMP, WEB) | 
| YGF156417C | ||
| YGF156418C | ||
| YGF156419C | ||
| YGF156420C | ||
| YGF156421C | ||
| YGF156422C | ||
| YGF156423C | ||
| Optical Switch Optional | model no. suffix+K | pick one of two by optical path selection, optical switching loss ≤1dB, switching response ≤30ms |