2X2 PM Fiber Coupler 1064nm 1490nm 1310nm 1550nm Polarization Maintaining Coupler
The filter-type polarization-maintaining coupler uses interference-type filters to not only split the light beam from the input PM fiber into two output PM fibers, but also combine the light of two PM fibers into one PM fiber. This device can be used to separate high-power linearly polarized light into multiple channels without changing the linear polarization. It can also be used as a power splitter to monitor the signal of the PM fiber system without changing the polarization state of the optical signal. power.
[Features]
Low Insertion Loss
High Extinction Ratio
High Isolation
High Stability and Reliability
[Applications]
Fiber amplifier
Fiber laser
Fiber Sensor
[Specification]
| Parameter |
Unit |
Typical value |
| Fiber Ports |
|
2x2 |
| Center Wavelength |
nm |
1310nm / 1490nm / 1550nm |
1064nm |
| Operating Bandwidth |
nm |
±40 |
±20 |
| Excess Loss |
dB |
≤1.0 |
≤1.2 |
| Max. Uniformity (only for 50/50) |
dB |
0.6 |
0.8 |
| Tap Ratio |
% |
1±0.2%,2±0.4%,5±1%,10%,20%,30%,50% |
| Min. Return Loss |
dB |
50 |
| Min. Extinction Ratio (Type F) |
dB |
22 |
20 |
| Min. Extinction Ratio (Type B) |
dB |
18 |
18 |
| Max. Loadable Optical Power |
mW |
300 |
| Tensile Strength |
N |
5 |
| Fiber Type |
|
Polarization maintaining fiber for input and output ports |
| Operating Temperature |
°C |
-5~+70 |
| Storage Temperature |
°C |
-40 ~ +85 |
| Dimensions |
mm |
φ5.5 × L35 |
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