1064nm 1310nm 1480nm 1550nm PM Fiber Coupler 1X2 PM Coupler Slow Axis Aligned with K Key
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 power of the PM fiber system without changing the polarization state of the optical signal.
[Features]
Low Insertion Loss
High return loss
[Applications]
Fiber amplifier
Fiber laser
Fiber Sensor
[Specification]
| Parameter |
Unit |
Typical value |
| Fiber Ports |
|
1x2 |
| Center Wavelength |
nm |
1310nm / 1480nm / 1550nm |
1064nm |
| Operating Bandwidth |
nm |
±40 |
±20 |
| Excess Loss |
dB |
≤0.7 |
≤0.8 |
| Uniformity (only for 50/50) |
dB |
≤0.4 |
≤0.5 |
| Tap Ratio |
% |
1±0.2%,2±0.4%,5±1%,10%,20%,30%,50% |
| Min. Return Loss |
dB |
50 |
| Extinction Ratio (Type F) |
dB |
≥22 |
≥22 |
| Extinction Ratio (Type B) |
dB |
≥20 |
≥20 |
| Loadable Optical Power |
mW |
≤300 |
| 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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