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Regular Plate Beamsplitters

Regular Plate Beamsplitters

1. Substrate

- Material: UV fused silica or BK-7 window

- Clear Aperture: Larger than central 85% of diameter

- Surface Quality: 10-5 Scratch-Dig

- Diameter Tolerance: +0.000 / -0.010" (0.00 / -0.25mm)

- Thickness Tolerance: ±0.010" (±0.25mm)

- Bevel: < 0.5mm @ 45° typical

- Wedge: ≤ 5arcmin

2. Other specifications

- Coating: e-beam multilayer dielectric

- Angle of incidence: 45°

- 2nd surface: Anti-reflection coating

- Damage Threshold: 10 J/cm2, 20ns, 20Hz; 1 MW/cm2, CW @ 1064nm

 

 

In some applications, cube beamsplitters are not appropriate, and instead, plate-type splitters are employed. For the highest levels of wavefront fidelity and power handling, conventional coated BK7 or fused silica plates are excellent choices. Spectral Optics provides various R/T ratio regular plate beamsplitters coated with an all-dielectric coating. They have almost no absorption and are designed for 45° (or other angles of incidence) at a specific wavelength and a polarization (S-pol, P-pol, or unpol). The 2nd side of the window has an anti-reflection coating. Please click HERE for the polarizing plate beamsplitters.

Please click "Contact Us" for our contact information, "Email Inquiry" for inquiring the details about the items on this page via email, or "Request for Quote" for requesting more items not only listed on the page. 

 

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[RPBS]-[λ]-[R]-[AOI & Pol]-[Size]-[Material]

[RPBS]

λ (nm)

R (%)

AOI & POL

Size Code

Material

Price ($ USD)

[248], [266], [308],

[337], [355], [400],

[488], [532], [633],

[670], [780], [800],

[850], [980], [1030],

[1064], [1319], [1550],

[1850], etc.
[20] (±5), [30] (±5),

[40] (±5), [50] (±5),

[60] (±5), [70] (±5),

[80] (±5), [90] (±3),

[95] (±2), [98] (±1),

[99] (±0.5), etc.
[45S],

[45P],

[45U],

etc.
[1025]
(1.0" X 0.25")
FS $310 (< 300nm)
$280 (< 400nm)
$220 (≥ 400nm)
BK $200 (≥ 400nm)
[1525]
(1.5" X 0.25")
FS $365 (< 300nm)
$330 (< 400nm)
$260 (≥ 400nm)
BK $235 (≥ 400nm)
[2025]
(2.0" X 0.25")
FS $450 (< 300nm)
$400 (< 400nm)
$300 (≥ 400nm)
BK $270 (≥ 400nm)
[3050]
(3.0" X 0.50")
FS Contact Us
BK $670 (≥ 400nm)
[4050]
(4.0" X 0.50")
FS Contact Us
BK $995 (≥ 400nm)

 

Example: RPBS-248-50-45U-1025-FS

Plate Beamsplitter + 248 + 50% (± 5%) R + 45° Unpolarization + 1.0" dia x 0.25" T + Fused Silica

 

NOTE:

 

1. The selection of the substrate material is dependent on the wavelength. Below 400nm, UV fused silica is recommended.

2. Any other wavelength and R/T ratio can be supplied on request.

3. Other angles of incidence are also available.

4. Please describe your custom requirements when you contact us.

 

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