Polarization Beam Combiner is fabricated by splicing two YVO₄ (yttrium vanadate) prisms, featuring a specially designed air-spaced structure. The angle between the two input polarized beams is 100.6°. All input and output optical surfaces undergo precision polishing and are coated with dedicated optical films, which ensure excellent beam transmission and beam combining performance.
|
Features: Air Spaced High Damaged Threshold Broad Band for 500-4000nm |
![]() |
Item No :
PBCProduct Origin :
FuZhouSpecifications:
| Material: | YVO4 |
| Wavelength Range: | 500-4000nm |
| Extinction Ratio: | <5x10-6 |
| Surface Quality: | 20/10 |
| Beam Deviation: | < 3 arc minutes |
| Wavefornt Distortion: | λ/4@632.8nm |
| Damage Threshold: | >500 MW/cm2 |
| Coating: | Single MgF2 |
| Mount: | Black Anodized Aluminium |
Standard Products
| Part No. | Wavelength Range(nm) | Extinction Ratio | Separation Angle(°) | C.A. fa(mm) | O.D.fd(mm) | L ±0.1(mm) |
| PBC9006 | 500-4000 | <5x10-6 | 9.8°-13.0° 10°@1550nm |
6.0 | 15.0 | 10.9 |
| PBC9008 | 8.0 | 25.4 | 14.5 | |||
| PBC9010 | 10.0 | 25.4 | 18.1 | |||
| PBC9015 | 15.0 | 25.4 | 27.0 |
Technical Advantages of Broad Band Polarization Beam Combiner:
The broad band polarization beam combiner achieves efficient polarization beam combining across wide spectral ranges through birefringent crystal and multi-layer coating designs, with technical advantages including: ultra-wide spectral compatibility, covering a working band of 500-4000nm, and offering a polarization extinction ratio (PER) ≥25dB, which is compatible with multi-wavelength applications from visible to near-infrared (1310/1550nm dual communication wavelengths, 1064nm laser); low loss and high stability, featuring insertion loss <0.5dB, a fully solid-state cemented structure that supports wide-temperature operation from -10°C to 70°C with PER variation <3dB, and polarization crosstalk <0.8% under mechanical vibration; **high-power applicability**, with a laser damage threshold >5 J/cm² (1064nm, 10ns), capable of withstanding continuous and pulsed light loads. In fiber optic communication WDM systems, its dual-polarization beam combining capability increases single-fiber transmission capacity to over 100Gbps; in multi-wavelength laser processing systems, it can synchronously combine orthogonally polarized 1064nm and 532nm beams with spot coincidence accuracy of ±2μm, significantly enhancing processing efficiency and optical path integration.