
780nm 1x2 Polarization Beam Combiner/Splitter
P/N: FIR-780-12-PBC/PBS|SKU: 10356
Total Price
$480.00 / unit
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Below is a general estimate for most orders. For exact delivery time, please contact [email protected].
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780nm 1x2 Polarization Beam Combiner/Splitter
Firsol 780nm 1x2 Polarization Beam Combiner/Splitter is a passive fiber optic component designed to split a single optical signal into two orthogonally polarized outputs or combine two orthogonally polarized input signals into one output fiber. Operating at a center wavelength of 780nm with a ±20nm operating wavelength range, it provides insertion loss of ≤1.0dB, an extinction ratio of ≥18dB, return loss of ≥50dB, and directivity of ≥50dB. Multiple CW optical power options from 0.5W to 10W are available for standard and high-power systems. Ports 1 and 2 use polarization-maintaining fiber, while Port 3 can be configured with single-mode fiber or an all-PM fiber structure. With stable polarization performance and reliable construction, it is suitable for fiber lasers, optical sensing, fiber optic amplifiers, coherent optical systems, and other polarization-maintaining fiber applications.
Specifications
Parameter | Unit | Value |
|---|---|---|
Center Wavelength | nm | 780 |
Operating Wavelength Range | nm | ±20 |
Insertion Loss | dB | ≤1.0 |
Return Loss | dB | ≥50 |
Extinction Ratio | dB | ≥18 |
Directivity | dB | ≥50 |
Max Optical Power (CW) | W | 0.5/1/2/5/10 |
Fiber Type | - | Port 1 and Port 2 PMF; Port 3 SMF or All PMF |
Tensile Load | N | 5 |
Package Dimensions | mm | Φ5.5 x L35 (<5W)/14 x 12 x 8 (>5W) |
Operating Temperature | °C | -5 to +70 |
Storage Temperature | °C | -40 to +85 |
Notes: Tested at 25 °C. Data exclude connectors. Adding connectors will increase insertion loss by approximately 0.6 dB, reduce return loss by 5 dB, and decrease extinction ratio by 2 dB. The fiber slow axis is aligned to the key by default.
Dimensions

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