Chongfan Technology
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High-Transmission Polarizing Beam Splitter Prism 355–532 nm
Classification：
Detail
Parameters
Technical Data
- ● Hexagonal design for bidirectional operation
- ● Broadband wavelength range
- ● 355 - 532 nm, 720 - 1080 nm, or 900 - 1300 nm
- ● High extinction ratio
- ● Capable of withstanding high power (see damage threshold label)
- ● Low group delay dispersion
- ● An epoxy-free optical contact design at the beam splitter interface, which minimizes absorption and scattering losses.
- High‑power, broadband polarization beam splitters are ideally suited for Ti:sapphire and Yb‑doped femtosecond lasers, as well as other broadband or tunable laser sources. These beam splitters are available for wavelength ranges of 355–532 nm, 720–1080 nm, or 900–1300 nm. As shown in Figure 1.2, both the input and output surfaces of the beam splitter are coated with anti‑reflection layers to minimize reflection at their respective wavelengths. The beam splitter reflects s‑polarized light and transmits p‑polarized light via a dielectric coating, thereby separating the s‑ and p‑components of the incident laser beam.
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The beam splitter’s bonding interface employs an epoxy‑free optical contact bonding (optical cement) technique, which minimizes absorption and scattering losses and delivers a high damage threshold (see the specification label). Each surface is polished to exceptional flatness, and this precision polishing of the internal surfaces facilitates optical contact. Consequently, the beam splitter boasts a compact footprint, excellent thermal stability, high transmission, and minimal beam displacement.
Offers a variety of installation options, including Small platform mounting base and Optical table adjustment mount Please note that, due to the unique geometry of broadband polarization beamsplitters, some compact mounts designed for beam‑splitting cubes are not suitable for these optics. During installation, care should be taken to avoid applying unnecessary stress to the polarizer; otherwise, stress‑induced birefringence may develop within the polarizer, reducing the achievable extinction ratio.
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Broadband polarization beam splitter, high power, 355–532 nm
- ● Broadband design wavelength range: 355 – 532 nm
- ● Extinction Ratio:
- ● Tp:Ts > 5000:1 (355–532 nm)
- ● Tp:Ts > 100,000:1 (390–460 nm)
- ● Maximum power that can be handled:
- ● Pulse: 1.5 J/cm² (355 nm, 5.2 ns, 100 kHz, Ø217 µm, 1000 pulses)
- ● Pulse: 3.0 J/cm² (532 nm, 5.2 ns, 100 Hz, Ø216 µm, 1000 pulses)
- ● Low group delay dispersion: |GDDp,s| < 40 fs²
- ● Reflected beam deviation: 63.8°
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The UFPBS056 and UFPBS106 high-power broadband polarization beam splitters exhibit a 63.8° deviation of the reflected beam. Their hexagonal design makes all four input and output surfaces usable, similar to a polarization beam‑splitting cube. This geometry also ensures equal‑length transmission and reflection paths, with the optical axis perpendicular to each respective output surface. In both versions, the input and output facets measure either 5 mm or 10.0 mm in height and width, and the total path length for both the reflected and transmitted beams is identical—8.0 mm or 16.1 mm.
Although the extinction ratio (Tp:Ts) in the 355–532 nm wavelength range exceeds 5,000:1, the extinction ratio in the 390–460 nm range is greater than 100,000:1. The extinction‑ratio plot in the curve labels shows the theoretical and measured extinction ratios as functions of wavelength.
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Broadband polarization beam splitter, high power, 720–1080 nm
- ● Broadband design wavelength range: 720 – 1080 nm
- ● Extinction Ratio:
- ● Tp:Ts > 1000:1 (720–1080 nm)
- ● Tp:Ts > 10,000:1 (730–1060 nm)
- ● Tp:Ts > 100,000:1 (800–900 nm)
- ● Maximum power that can be handled:
- ● Pulse: 6.5 J/cm² (800 nm, 135 ps, 1 kHz, Ø89 μm, 1000 pulses)
- ● Pulse: 19.0 J/cm² (1064 nm, 10 ns, 10 Hz, Ø230 µm, 1000 pulses)
- ● Low group delay dispersion: |GDDp,s| < 40 fs²
- ● The reflected beam is deflected by 66.3°
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The UFPBS10A high-power broadband polarization beam splitter exhibits a beam deviation of 66.3°. Its hexagonal design ensures that all four input and output surfaces are accessible, similar to a polarization beam‑splitting cube. This configuration also yields equal‑length transmission and reflection paths, with the optical path perpendicular to each output surface. Each input and output surface measures 10.0 mm in height and width, and the total optical path length is 15.3 mm.
Although the extinction ratio in the 720–1080 nm wavelength range (T p :T s ) Exceeds 1000:1, but the specific wavelength at the band center exhibits an even higher extinction ratio. Curve The extinction‑ratio plot in the figure shows the theoretical and measured extinction ratios as functions of wavelength, with the measured values for the 800–900 nm band denoted by T. p :T s > 100,000:1.
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Broadband polarization beam splitter, high power, 900–1300 nm
- ● Broadband design wavelength range: 900 – 1300 nm
- ● Extinction Ratio:
- T p :T s > 1000:1 (900–1300 nm)
- T p :T s > 10,000:1 (900–1250 nm)
- T p :T s > 100,000:1 (980 - 1080 nm)
- ● Maximum power that can be handled:
- Continuous: 200,000 W/cm (51 MW/cm) 2 , 1070 nm, Ø100 μm)
- Pulse: 7.8 J/cm 2 (1030 nm, 135 ps, 50 kHz, Ø70 µm, 10,000 pulses)
- Pulse: 7.4 J/cm 2 (1064 nm, 10 ns, 10 Hz, Ø230 µm, 1000 pulses)
- ● Low group delay dispersion:
- |GDD p, s |< 30 fs 2
- The reflected beam is deflected by 67.5°.
The beam deviation of the UFPBS103 and UFPBS053 high-power broadband polarization beamsplitters is 67.5°. Their hexagonal design makes all four input and output surfaces accessible, similar to a polarization beamsplitting cube. This geometry also ensures equal-length transmission and reflection paths, with the optical path perpendicular to each output surface. The beamsplitters are available in two sizes, with input and output faces measuring either 5.0 mm or 10.0 mm in height and width, and total beam‑path lengths of 7.5 mm or 15 mm, respectively.
Although the extinction ratio (Tp:Ts) in the 900–1300 nm wavelength range exceeds 1000:1, a specific wavelength at the center of the band exhibits an even higher extinction ratio. The extinction‑ratio plot in the curve labels shows both the theoretical and measured extinction ratios as functions of wavelength, with measured values in the 980–1080 nm band exceeding 100,000:1.
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