CATV RF SYSTEM

CATV Fiber Amplifier

LA51

LA51 series- Booster EDFA for CATV application

Lightem LA51 Booster EDFA is working in single wavelength in CATV system. Features low noise figure, large saturation output power, Lightem LA51 CATV Booster EDFA can be applicable in the group center, substation and trunk circuit. Lightem LA51 adopts the premium grade pump laser and America OFS erbium-doped optical fiber. The pump laser is well protected with the complete control of APC, ACC and ATC circuitry; together with ventilation and heat control the pump laser is running in a control environment.

 

  • Low noise figure
  • High output power
  • Power adjustment via the button on front panel (optional)
  • RS232 commutation and SNMP network management optional
  • Excellent P/P ratio
  • Available of 19" rugged housing

Optical Parameters Min Typ Max Unit Remark
Tuning Range
35
1563.86
nm
C Band
Frequency tuning Range
1528.77
196.1
nm
Wavelength tuning Range
191.7
THz
Number of ITU grid locking
89
50GHz spacing
Channels Spacing
0.4
nm
50GHz spacing
Locked wavelength Accuracy
-0.02
+0.02
nm
± 2.5 GHz
Wavelength stability
-0.012
+0.012
nm
± 1.5 GHz
Tuning Speed
20
ms
Number of Output port
2
Output power of each port
5.5
dBm
LCT5EM26
6.5
dBm
LCT5EM27
7.5
dBm
LCT5EM28
8.5
dBm
LCT5EM29
Power ripple
-0.25
±0.15
+0.25
dB
Over tuning range
Line width
0.35 MHz
1
MHz
FWHM (Δλ), (-3dB full width)
Side Mode Suppression ratio
45
50
dB
SMSR
Relative Intensity Noise (RIN)
-160
dB
RIN (20~1000MHz)
Return loss
50
dB
Optical connector
SC/APC
Optional FC/APC, LC/APC
RF Features
Work bandwidth
47
862
MHz
Input level
18
28
dBmV
AGC
Flatness
-0.75
+0.75
dB
Return loss
16
dB
Input impedance
75 Ω
RF connector
F-Female
Link Features
SBS restrain
13
19
dB
Adjustable
Transmit channel
PAL-D/60CH
PAL-D/99CH
CNR1
≥54.0
≥52.5
dB
Back to back
CNR2
≥52.5
≥50.5
dB
65 Km optical fiber, 0 dBm receiver
CTB
≤-65
dB
CSO
≤-65
dB
General Features
10/100M Ethernet interface
RJ45
Networking protocol
SNMP
Communication interface
RS232
Power supply
90
265
VAC
50/60Hz
-72
-48
-36
VDC
Power Consume
50
W
Single power works
Operating temp.
-5
65
°C
Automatic Machine temp. control
Storage temp.
-40
85
°C
Operating relative humidity
5
95
%
Size (W)x(D)x(H)
19×15.2×1.75
inches
LA51

LA52 series- Inline EDFA for CATV application

Lightem LA52 Inline EDFA is working in single wavelength in CATV system. Features low noise figure, large saturation output power, Lightem LA52 CATV inline EDFA can be applicable in the group center, substation and trunk circuit. Lightem LA52 adopts the premium grade pump laser and America OFS erbium-doped optical fiber. The pump laser is well protected with the complete control of APC, ACC and ATC circuitry; together with ventilation and heat control the pump laser is running in a control environment.

 

  • Extra low noise index
  • High output power
  • Power adjustment via the button on front panel (optional)
  • RS232 commutation and
  • SNMP network management optional
  • Excellent P/P ratio

Optical Parameters Min Typ Max Unit Remark
Operating wavelength
1540
1563
nm
CATV
Input level
-15
+11
dBm
Maximum output power
+10
+26
dBm
Pin=0dBm
Output power adjustable range
-6
0
dBm
LA5100/P
Number of output ports
1
8
SC/APC
1
6
LC/APC
Difference of each output power
-0.5
+0.5
dBm
Noise figure (Pin=0dBm)
6.3
dB
LA5126
Polarization dependence loss
0.3
dB
Polarization dependence gain
0.4
dB
Polarization mode dispersion
0.5
ps
Input/output isolation
30
dB
Pump power leakage
-30
dBm
Echo loss
55
dB
APC
General Features
SNMP network management interface
RJ45
Communication interface
RS232
Power supply
90
265
V
220VAC
30
72
V
-48VDC
23
50
V
+24VDC
Power Consume
50
W
Operating temp.
-5
65
°C
Storage temp.
-40
85
°C
Operating relative humidity
5
95
%
Size (W)x(D)x(H)
483x386x44
mm
1RU (19”)
315×391×133
mm
3D (12.4”, desk-type)
399×244×165
mm
Outdoor
CATV-PreAmp-EDFA

LA53 series - CATV PreAmp EDFA

Lightem LA53 CATV PreAmp EDFA, optimised design of low noise and high gain. With the completely control of APC, ACC and ATC, perfect design in the ventilation and heat output ensure the long life of pump laser and high reliable work. RS232 and RJ45 offer serial commutation and SNMP network port. The work status of equipment’s warning signal; Optical loss, laser operating status etc can be displayed on the front LCD panel.

 

  • 40dB high gain (Pin= -30dBm)
  • Low noise figure
  • Broad operating bandwidth
  • Laser APC, ACC, ATT
  • Perfect RS232 communication interface and SNMP function
  • Excellent P/P ratio

Optical Parameters Min Typ Max Unit Remark
Operating wavelength
1528
1563
nm
CATV
Input Power
-38
+3
dBm
Total output power
+8
+15
dBm
Pin=-6dBm
Noise figure
5.0
dB
Pin=-6dBm
Gain (Pin=-30dB)
25
dB
LA5325
30
dB
LA5330
35
dB
LA5335
40
dB
LA5340
Polarization dependence loss
0.1
0.3
dB
Polarization dependence gain
0.5
dB
Polarization mode dispersion
0.4
ps
Pump power leakage
-30
dB
Return loss
46
dB
UPC
55
dB
APC
Connector
FC/APC, SC/APC, LC/APC
General Features
SNMP network management interface
RJ45
Option
Communication interface
RS232
Option
Power supply
90~265 city power
V
Optical -48VDC
Power Consumption
50
W
Operating temp.
0
50
°C
Storage temp.
-40
85
°C
Operating relative humidity
5
95
%
Size (W)x(D)x(H)
19×14×1.75
inches
1RU (19”)
High-power-Multi-ports-output-CATV-EDFA

LA54 series High-power Multi-ports output CATV EDFA (1540~1563nm)

LA54 series is a high power multi-ports optical amplifier with gain spectrum band within 1540~1563nm. It is designed for the application of CATV or 1~8 continuous banding channel (ITU wavelength). It offers a flexible and low-cost solution for CATV large area coverage of metropolises and medium-sized cities. LA54 has extremely low noise figure, the entire unit adopts twin-stage amplification, and the pre-amplifier adopts low noise EDFA, output cascade adopts high power EYDFA. 

 

  • Dual power supply optional, 1+1 backup
  • Chassis height is optional: 1U, 2U, 3U, 5U
  • 5U rack up to optional 512 output optical ports
  • Low noise figure ( Typ ≤4.5dB, Max ≤5.5dB )
  • Optional RS232, SNMP
  • Telecom level safety reliability and network management.
  • Simplified machine-room links, improve the system reliability.
  • Simple and reliable in construction/maintenance
  • Built-in low noise pre-amplifier, not necessary EDFA cascade,
    extremely lower the CNR, MER degradation of the system
  • Total output power optional 500~80000mW (27~49dBm)
  • The best cost performance in industry

Optical Parameters Min Typ Max Unit Remark
Operating wavelength
1540
1563
nm
CATV
Input Power
-10
+10
dBm
Total output power
27/33/39/46
37/41/45/49
dBm
1U/2U/3U/5U
Number of output port
16/64/128/256
pcs
1U/2U/3U/5U
Difference of each output power
-0.5
+0.5
dB
Output power adjustable range
-6
0
dBm
Noise figure (Pin=0dBm)
4.5/5.0
5.5/6
dB
LA5837(1x/2x)
Polarization dependence loss
0.3
dB
Polarization dependence gain
0.4
dB
Polarization mode dispersion
0.3
ps
Input/output isolation
30
dB
Pump power leakage
-30
dBm
Echo loss
55
dB
APC
General Features
SNMP network management interface
RJ45
Communication interface
RS232
Power supply
90
265
V
220VAC
30
72
V
-48VDC
Power Consume
50/84/189/289
W
1U/2U/3U/5U
Operating temp.
-5
65
°C
Storage temp.
-40
85
°C
Operating relative humidity
5
95
%
Size (W)x(D)x(H)
483 × 363 × 44
mm
1RU (19”)
483 × 373 × 89
mm
2RU
483 x 373 x 133.35
mm
3RU
483 x 373 x 209.55
mm
5RU
High-power-Multi-ports-output-CATV-EDFA

LA58 series High-power Multi-ports output CATV EDFA (1540~1563nm)

LA58 series is a high power multi-ports optical amplifier with gain spectrum band within 1540~1563nm. With the built in CWDM, it is designed for the application of CATV with OLT PON (ie. 1310/1490 & 1550nm). It offers a flexible and low-cost solution for CATV large area coverage of metropolises and medium-sized cities. LA58 has extremely low noise figure, the entire unit adopts twin-stage amplification, and the pre-amplifier adopts low noise EDFA, output cascade adopts high power EYDFA. 

 

  • Each output optical port is with built-in high performance
  • CWDM, single fiber three wavelengths, which can save
    optical fiber resources largely.
  • Dual power supply optional, 1+1 backup
  • Chassis height is optional: 1U, 2U, 3U, 5U
  • 5U rack up to optional 256 output optical ports
  • Can compatible with any FTTx PON technology: EPON/GEPON, GPON
  • Low noise figure ( Typ ≤4.5dB, Max ≤5.5dB )
  • Optional RS232, SNMP
  • Telecom level safety reliability and network management.
  • Simplified machine-room links, improve the system reliability, and largely reduce the network maintenance cost.
  • Efficient space, Simple and reliable in construction/maintenance
  • Built-in low noise pre-amplifier, not necessary EDFA cascade, extremely lower the CNR, MER degradation of the system
  • Total output power optional 500~80000mW (27~49dBm)
  • The best cost performance in industry

Optical Parameters Min Typ Max Unit Remark
Operating wavelength
1540
1563
nm
CATV
OLT pass wavelength
1310/1490
nm
CATV pass wavelength loss
0.8
dB
OLT pass wavelength loss
0.8
dB
1550nm
CATV & OLT isolation
40
dB
1310/1490nm
Input power
-10
+10
dBm
Total output power
27/33/39/46
37/41/45/49
dBm
1U/2U/3U/5U
Number of output port
16/64/128/256
pcs
1U/2U/3U/5U
Difference of each output power
-0.5
+0.5
dB
Output power adjustable range
-6
0
dBm
Noise figure (Pin=0dBm)
4.5/5.0
5.5/6
dB
LA5837(1x/2x)
Polarization dependence loss
0.3
dB
Polarization dependence gain
0.4
dB
Polarization mode dispersion
0.3
ps
Input/output isolation
30
dB
Pump power leakage
-30
dBm
Echo loss
55
dB
APC
General Features
SNMP network management interface
RJ45
Communication interface
RS232
Power supply
90
265
V
220VAC
30
72
V
-48VDC
Power Consume
50/84/189/289
W
1U/2U/3U/5U
Operating temp.
-5
65
°C
Storage temp.
-40
85
°C
Operating relative humidity
5
95
%
Size (W)x(D)x(H)
483 × 363 × 44
mm
1RU (19”)
483 × 373 × 89
mm
2RU
483 x 373 x 133.35
mm
3RU
483 x 373 x 209.55
mm
5RU
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