PM Optical Isolator
The purpose of the polarization-maintaining device is to maintain the original polarization state of the polarized light or to transform the polarization state as far as possible when connecting or coupling the polarized light in two polarization-maintaining fibers.
There are many PM devices, such as PM connector, PM collimator,Polarization combiner /splitter, In-line Polarizer, PM circulator, PM isolator, PM optical coupler and so on.
Product Features：
- High Isolation
- Low Insertion Loss
- High Return Loss
- High Extinction Ratio
- Optical Path Epoxy Free
Product Application：
- Optical Amplifier
- CATV Fiberoptic Links
- Fiberoptic Systems Test
- Fiberoptic LAN Systems
- Telecommunications
Product Parameters：
|
Parameter |
Single stage |
Dual stage |
|
Operating Wavelength (nm) |
1310, 1480, 1550 or Customized |
|
|
Typical Isolation (dB) |
40 |
58 |
|
Minimum Isolation (dB) |
≥30 |
≥46 |
|
Typical Insertion Loss (dB) |
0.4 |
0.6 |
|
Maximum Insertion Loss (dB) |
≤0.60 |
≤0.50 |
|
Return loss (In/Out) (dB) |
≥55/55 |
≥55/55 |
|
Min. Extinction Ratio(dB) |
18~20 |
|
|
Bandwidth (nm) |
±15 |
±30 |
|
Operating Temperature (℃) |
-5 ~ +75 |
|
|
Storage Temperature (℃) |
-40 ~ +85 |
|
|
Fiber Type |
250μm or 400μm PM Fiber |
|
|
Fiber Length (Min.) |
1 meter each end |
|
|
Dimensions (mm) |
Ø5.5xL35 (50mm including rubber boots) |
|
|
Power Handling (mW) |
300 |
|
* The above specifications are for device without connectors.
** For devices with connectors, insertion loss will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower.
