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CATV RF SYSTEM
CATV Fiber Amplifier
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.
Features
- 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
Specifications
| 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 |
|
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.
Features
- 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
Specifications
| 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 |
|
|
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 |
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.
Features
- 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
Specifications
| 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.
|
|
|
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”) |
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.
Features
- 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
Specifications
| 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 |
|
|
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 |
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.
Features
- 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
Specifications
| 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 |
|
|
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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Contact Us
- Tel : +852 - 2687 5815
- Fax: +852 - 2687 5456
- Email: [email protected]
- Office Address: Rm 910-11, 9/F, Topsail Plaza, 11 On Sum Street, Shatin, N.T., H.K.