Passive Networking
Fiber Attenuator
FIBER ATTENUATOR/TERMINATOR
Inline Fixed Attenuator
Lightem In-line Attenuator is ideal for application where space is critical. The patchcord type configuration allows direct linkage without any additional device in between. Built-in attenuation value patchcord is designed to provide accurate fixed attenuation value from 1-20dB (1dB step up), 25dB and 30dB over a wide range of wavelengths.
Available in PC or UPC finish, providing ultra low return loss. Lightem In-line Attenuators come to you from a world class manufacturing facility plant, suitable for applications in computer networking, telecommunications and cable TV, etc.
| Parameters | Singlemode (9/125 μm) | Multimode (GI 50/125,62.5/125 μm) |
|---|---|---|
|
Attenuation value |
0dB to 20dB (1dB step), 25dB, 30dB |
0dB to 25dB (1dB step) |
|
Operating wavelength |
1260nm ~ 1620nm |
850nm or 300nm, 1310nm |
|
Attenuation Tolerance |
± 0.5 dB |
± 0.5 dB |
|
Return Loss – SPC |
⩾ 40dB |
|
|
UPC |
⩾ 55 dB |
|
|
APC |
⩾ 65 dB |
|
|
Max. Power Capability |
<0.1 dB |
|
|
Operating Temprature |
-40°C to + 75°C |
-40°C to + 75°C |
FIBER ATTENUATOR/TERMINATOR
Inline variable Attenuator
Lightem patch cord type variable attenuator, is ideal for the application where the fine tune of the attenuation value is required. This high performance device is designed to give an accurate attenuation range of 0.5-30dB over a wide range of wavelengths. The patch cord type configuration allows the direct linkage to both ends without any additional device in between. Available in PC or APC finish, providing ultra low return loss. Lightem patch cord, variable attenuators come to you from a world class manufacturing facility plant, suitable for applications in computer networking, telecommunications and cable TV etc.
| Parameters | Singlemode | Multimode |
|---|---|---|
|
Fiber Type |
1 dB ~ 20 dB |
50/125μm, 62.5/125μm |
|
Attenuation value |
0.5 dB ~ 30 dB |
|
|
Operating wavelength |
1310 / 1550 nm |
1300 nm |
|
Return Loss |
≤-50dB (UPC) |
———— |
|
Durability |
0.2 dB Max. |
|
|
Available Connector |
FC, SC, ST, LC, MU |
|
|
Operating Temprature |
-20°C to + 70°C |
|
|
Storage Temperature Range |
-20°C to + 70°C |
|
FIBER ATTENUATOR/TERMINATOR
Polarization Insensitive Optical Circulator ( LOCIR )
- Low insertion loss
- Wide band high isolation
- Low PDL
- Compact in-line package
- High stability and reliability
- Epoxy free on optical path
| Parameters | Unit | Specifications | Specifications |
|---|---|---|---|
|
Center Wavelength |
nm |
1310 |
1550 |
|
Operating Wavelength |
nm |
λc±50 |
λc±30 |
|
Typ. Insertion Loss( @ 23°C) |
dB |
Max 1.0 |
Max 0.60 |
|
Max. Insertion Loss(AOW @ 23°C) |
dB |
Max 1.2 |
Max 0.80 |
|
Peak Isolation |
dB |
Min 50
|
|
|
Min.Isolation ( @ 23°C) |
dB |
Min 45 |
|
|
Channel Cross Talk |
dB |
Min 50 |
|
|
PDL ( @ 23°C) |
dB |
Max 0.15 |
|
|
PMD ( @ 23°C) |
dB |
Max 0.15 |
|
|
Return Loss |
dB |
Min 50 |
|
|
Power Handling |
mW |
Max 500 |
|
|
Fiber Type |
|
SMF-28e with 0.9mm loose tube |
|
|
Casing color |
|
Port 1/Red; Port 2/Blue; Port 3/White; |
|
|
Operating Temperature |
°C |
﹣5~+70 |
|
|
Storage Temperature |
°C |
﹣40~+85 |
|
|
Package Dimensions |
mm |
Ø5.5×L50 |
|
FIBER ATTENUATOR/TERMINATOR
Polarization Insensitive Optical Circulator
- Low insertion loss
- Wide band high isolation
- Low PDL
- Compact in-line package
- High stability and reliability
- Epoxy free on optical path
| Parameters | Unit | Specifications | Specifications |
|---|---|---|---|
|
Center Wavelength |
nm |
1310 |
1550 |
|
Operating Wavelength |
nm |
λc±50 |
λc±30 |
|
Typ. Insertion Loss( @ 23°C) |
dB |
Max 1.0 |
Max 0.60 |
|
Max. Insertion Loss(AOW @ 23°C) |
dB |
Max 1.2 |
Max 0.80 |
|
Peak Isolation |
dB |
Min 50
|
|
|
Min.Isolation ( @ 23°C) |
dB |
Min 45 |
|
|
Channel Cross Talk |
dB |
Min 50 |
|
|
PDL ( @ 23°C) |
dB |
Max 0.15 |
|
|
PMD ( @ 23°C) |
dB |
Max 0.15 |
|
|
Return Loss |
dB |
Min 50 |
|
|
Power Handling |
mW |
Max 500 |
|
|
Fiber Type |
|
SMF-28e with 0.9mm loose tube |
|
|
Casing color |
|
Port 1/Red; Port 2/Blue; Port 3/White; |
|
|
Operating Temperature |
°C |
﹣5~+70 |
|
|
Storage Temperature |
°C |
﹣40~+85 |
|
|
Package Dimensions |
mm |
Ø5.5×L50 |
|
FIBER ATTENUATOR/TERMINATOR
plug type Attenuator
Lightem Plug type attenuators are used in the network to reduce the optical power launched onto the photo detector. These high performance devices are designed to give accurate attenuation over a wide range of wavelengths. The plug type configuration allows you to use directly on the ends of the fiber jumpers and to insert directly into the adapter. Available in PC or APC finish, providing ultra low return loss.
| Parameters | Singlemode | Multimode |
|---|---|---|
|
Attenuation value |
1 dB ~ 20 dB |
|
|
Operating wavelength |
1310 / 1550 nm |
850 or 1300 nm |
|
Return Loss |
≤-50dB (UPC) |
———— |
|
|
≤-60dB (APC) |
———— |
|
Attenuation Tolerance 1 ~ 7 dB |
± 0.5 dB |
|
|
8 ~ 12 dB |
± 0.7 dB |
|
|
13 ~ 17 dB |
± 1.0 dB |
|
|
18 ~ 20 dB |
± 1.3 dB |
|
|
Polarization Dependent Loss |
<0.1 dB |
———- |
|
Operating Temprature |
-40°C to + 85°C |
|
|
Storage Temperature Range |
-40°C to + 85°C |
|
FIBER ATTENUATOR/TERMINATOR
module variable Attenuator
- Wide Wavelength Range
- High Attenuation Range
- High Resolution
- Low Cost
- Excellent Environmental Stability and Reliability
| Parameters | Values |
|---|---|
|
Operating Wavelength Range |
1310 ±40 and/or 1550 ±40 or 1260 – 1620 nm |
|
Attenuation Range |
0.5~40 dB |
|
Max. Insertion Loss |
0.5 dB |
|
Max. PDL |
0.15 (0~20dB), 0.3dB (20~40dB)0.6 dB |
|
Attenuation Resolution |
<0.2 (0~20dB), <0.4dB (20~40dB) |
|
Min. Return Loss |
55 dB |
|
Power Handing |
300 MW |
|
Fiber Type |
SMF-28e fiber or Specify |
|
Operating Temperature |
0°C ~ +60°C |
|
Storage Temperature |
-40°C ~ +85°C |
|
Package Dimension (L X W X H) |
20 X 20 X 15 mm |