CO2 Optics
CO2 optics are a critical component of CO2 lasers. They play a vital role in the transmission and focusing of the laser beam, which ultimately determines the performance of the laser. Wavelength Opto-Electronic design and manufacture of various 9.4/10.6µm CO2 optics like ZnSe lenses, ZnSe dichroic optics, optical mirrors, and ZnSe Windows for your CO2 laser systems.
Customization is available for this product. Let us know your specifications in the RFQ form.
Aspheric Lenses
Compared to conventional spherical lenses, the most significant advantage of aspherical lenses is that they can perform spherical aberration correction. Aspheric lenses allow the designer to correct the aberration with fewer optical lenses than spherical lenses, so the optical system can be lower at cost and more compact in size.
Diameter Tolerance: ±0.1mm
Thickness Tolerance: ±0.1mm
Focal Length Tolerance: ±1%
Centration: < 1 arc min
Clear Aperture: >90%
Irregularity P-V: <0.15µm
Surface Quality: 40/20; 60/40
Coating: As per the requirement
| Part Number | Wavelength (nm) | EFL (mm) | Dia (mm) | Material |
|---|---|---|---|---|
| LZA-25.4-12.7 | Uncoated | 12.7 | 25.4 | Zinc Selenide |
| LZA-25.4-25.4 | Uncoated | 25.4 | 25.4 | Zinc Selenide |
| LZA-25.4-50.8 | Uncoated | 50.8 | 25.4 | Zinc Selenide |
Axicon Lenses
Axicon focus lenses have one conical surface and are used to produce a ring focus beam. Typically, axicon focus lenses have a second flat surface and are used in combination with a focusing lens. Our high-grade ZnSe Axicon lenses are made from a manufacturing process suited to the axicon angle and the accuracy required. For small angle, high accuracy lenses, the manufacturing process involves diamond-machining.
Standard Axicon lens – Axicon cone angle equal to 180°-2α
(+/-0.01 deg): α (°)
Cone Angle 140°: 20°
Cone Angle 160°: 10°
Cone Angle 165°: 7.5°
Cone Angle 170°: 5°
Cone Angle 175°: 2.5°
Cone Angle 179.5°: 0.25°= 15′
| Product Type | Part Number | Wavelength (nm) | Cone Angle (deg) | Dia (mm) | Material | ET (mm) | Assembly |
|---|---|---|---|---|---|---|---|
| Axicon Lens | LZAX-1-ET3-140DEG | 10600 | 140 | 25.4 | ZnSe | 3 | Single |
| Axicon Lens | LZAX-1-ET3-160DEG | 10600 | 160 | 25.4 | ZnSe | 3 | Single |
| Axicon Lens | LZAX-1-ET3-170DEG | 10600 | 170 | 25.4 | ZnSe | 3 | Single |
| Axicon Lens | LZAX-1-ET3-175DEG | 10600 | 175 | 25.4 | ZnSe | 3 | Single |
| Axicon Lens | LZAX-1-ET3-178DEG | 10600 | 178 | 25.4 | ZnSe | 3 | Single |
| Axicon Lens | LZAX-1-ET3-179.5DEG | 10600 | 179.5 | 25.4 | ZnSe | 3 | Single |
Cylindrical Lenses
Cylindrical lenses are used to focus an incoming beam in a single focal line than at a single focal point, it comes with both positive and negative focal lengths. They are either round or rectangular objects with cylindrically shaped surfaces, either in plano-concave or plano-convex. They differ from spherical lenses in that they focus a beam on a focal line rather than a focal point. Its applications include laser scanners, laser diode systems, spectrophotometers, projectors, and optical data storage and retrieval systems. They can be designed with different levels of curvature and refractive power, depending on the specific application and the desired outcome.
Dimension Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Focal Length Tolerance: ±2%
Edge Thickness Variation (ETV): ≤3 arc min.
Clear Aperture: >90%
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 60-40 S-DAR
Coating: R<0.2% per surface @10.6μm
| Part No. | Material | Wavelength (nm) | Dimension (mm) | EFL (mm) | CT (mm) | Type |
|---|---|---|---|---|---|---|
| LZCY-25.4x25.4-25 | ZnSe | 10600/9400 | 25.4 x 25.4 | 25.4 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-38 | ZnSe | 10600/9400 | 25.4 x 25.4 | 38.1 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-50 | ZnSe | 10600/9400 | 25.4 x 25.4 | 50.8 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-63 | ZnSe | 10600/9400 | 25.4 x 25.4 | 63.5 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-76 | ZnSe | 10600/9400 | 25.4 x 25.4 | 76.2 | 3.8 | Plano-Convex |
| LZCY-25.4x25.4-101 | ZnSe | 10600/9400 | 25.4 x 25.4 | 101.6 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-127 | ZnSe | 10600/9400 | 25.4 x 25.4 | 127.0 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-190 | ZnSe | 10600/9400 | 25.4 x 25.4 | 190.5 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-254 | ZnSe | 10600/9400 | 25.4 x 25.4 | 254.0 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-381 | ZnSe | 10600/9400 | 25.4 x 25.4 | 381.0 | 5.0 | Plano-Convex |
| LZCY-50.8x50.8-127 | ZnSe | 10600/9400 | 50.8 x 50.8 | 127.0 | 6.5 | Plano-Convex |
| LZCY-50.8x50.8-254 | ZnSe | 10600/9400 | 50.8 x 50.8 | 254.0 | 6.5 | Plano-Convex |
| LZCY-25.4x25.4+38.1 | ZnSe | 10600/9400 | 25.4 x 25.4 | -38.1 | 4.0 | Plano-Concave |
| LZCY-25.4x25.4+72.4 | ZnSe | 10600/9400 | 25.4 x 25.4 | -72.4 | 2.5 | Plano-Concave |
| LZCY-25.4x25.4+254 | ZnSe | 10600/9400 | 25.4 x 25.4 | -254.0 | 3.0 | Plano-Concave |
Spherical Lenses
ZnSe plano-convex lenses (LZ) has a positive focal length and are used to focus a collimated beam to small spot size. ZnSe plano-concave (LZ) lenses have a negative focal length and are used for diverging collimated beams. The curved surfaces of these lenses should face the source to minimize spherical aberration. Positive meniscus convex-concave (LZM) lenses are converging lenses being thick at the center and thin at the edges and produce real images. The radius of the curvature of the concave side is greater than the convex side of the lens. The convex side of the lens should face the source to minimize spherical aberration. It is designed to minimize spherical aberration and produce minimum focal spot size for incoming collimated light.
Diameter Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Focal Length Tolerance: ±2%
Edge Thickness Variation (ETV): ≤3 arc min.
Clear Aperture: >90%
Surface Flatness: λ/4 per 1″ Dia@632.8nm
Surface Quality: 40-20 S-DAR
Coating: R<0.2% per surface @10.6μm
| Part No. | Material | Wavelength (nm) | Dimension (mm) | EFL (mm) | CT (mm) | Type |
|---|---|---|---|---|---|---|
| LZCY-25.4x25.4-25 | ZnSe | 10600/9400 | 25.4 x 25.4 | 25.4 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-38 | ZnSe | 10600/9400 | 25.4 x 25.4 | 38.1 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-50 | ZnSe | 10600/9400 | 25.4 x 25.4 | 50.8 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-63 | ZnSe | 10600/9400 | 25.4 x 25.4 | 63.5 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-76 | ZnSe | 10600/9400 | 25.4 x 25.4 | 76.2 | 3.8 | Plano-Convex |
| LZCY-25.4x25.4-101 | ZnSe | 10600/9400 | 25.4 x 25.4 | 101.6 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-127 | ZnSe | 10600/9400 | 25.4 x 25.4 | 127.0 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-190 | ZnSe | 10600/9400 | 25.4 x 25.4 | 190.5 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-254 | ZnSe | 10600/9400 | 25.4 x 25.4 | 254.0 | 5.0 | Plano-Convex |
| LZCY-25.4x25.4-381 | ZnSe | 10600/9400 | 25.4 x 25.4 | 381.0 | 5.0 | Plano-Convex |
| LZCY-50.8x50.8-127 | ZnSe | 10600/9400 | 50.8 x 50.8 | 127.0 | 6.5 | Plano-Convex |
| LZCY-50.8x50.8-254 | ZnSe | 10600/9400 | 50.8 x 50.8 | 254.0 | 6.5 | Plano-Convex |
| LZCY-25.4x25.4+38.1 | ZnSe | 10600/9400 | 25.4 x 25.4 | -38.1 | 4.0 | Plano-Concave |
| LZCY-25.4x25.4+72.4 | ZnSe | 10600/9400 | 25.4 x 25.4 | -72.4 | 2.5 | Plano-Concave |
| LZCY-25.4x25.4+254 | ZnSe | 10600/9400 | 25.4 x 25.4 | -254.0 | 3.0 | Plano-Concave |
Beam Combiners
Beam combiners merge two or more beams into one and are used for system alignment. Beam combiners usually transmit a long-wavelength beam and reflect a short-wavelength beam whereas reverse beam combiners transmit a short-wavelength beam and reflect a long-wavelength beam. Various beam combiners transmit or reflect two or more wavelength beams. We also have the ZnSe beam combiners used for CO2 laser system alignment. They’re designed at a 45° angle of incidence and transmit a laser beam, combining the beam with the 90° reflected visible alignment beam.
Diameter Tolerance: +0/-0.13mm
Thickness: ±0.25mm
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 40-20 S-D
AOI: 45°
| Part Number | Wavelength (nm) | Material | Dimension (mm) | Thickness (mm) |
|---|---|---|---|---|
| BCZ-0.5-3 | 10600T / 650R | ZnSe | 12.7 | 3 |
| BCZ-0.75-3 | 10600T / 650R | ZnSe | 19.1 | 3 |
| BCZ-20-2 | 10600T / 650R | ZnSe | 20 | 2 |
| BCZ-1.5-3 | 10600T / 650R | ZnSe | 38.1 | 3 |
| BCZ-2-5 | 10600T / 650R | ZnSe | 50.8 | 5 |
Beam Splitters
A beam splitter is an optical component that is used to split a single incoming light beam into two or more separate beams.
The transmission and reflection of the light depend upon various parameters such as the incident angle, state of polarization, and wavelength of the input beam. There is a substantial difference in the transmittance and reflectance values of s and p polarization at a 45° incident angle, so the ZnSe beam splitters designed are for this angle. Wavelength Opto-Electronic design and manufacture ZnSe beam splitters at 9.4µm and 10.6µm wavelengths which are ideal for your CO2 laser applications.
Diameter Tolerance: +0/-0.13mm
Thickness: ±0.25mm
Surface Flatness: λ/4 per 1’’ Dia@632.8nm
Surface Quality: 60-40 S-D
| Part Number | Wavelength (nm) | Material | Dimension (mm) | Thickness (mm) | AOI | Reflectivity |
|---|---|---|---|---|---|---|
| BSZ-0.5-3-10%R-PIS | 10600/9400 | ZnSe | 12.7 | 3 | 45° | 10% |
| BSZ-1-3-27%R-PIS | 10600/9400 | ZnSe | 25.4 | 3 | 45° | 27% |
| BSZ-1-3-50%R-PIS | 10600/9400 | ZnSe | 25.4 | 3 | 45° | 50% |
| BSZ-1.5-3-50%R-PIS | 10600/9400 | ZnSe | 38.1 | 3 | 45° | 50% |
| BSZ-2-5-50%R-PIS | 10600/9400 | ZnSe | 50.8 | 5 | 45° | 50% |
Cavity Optics
CO2 laser cavity optics consist of a rear mirror and a front mirror (also called an output coupler or partial reflector ). Rear mirrors, typically ZnSe, with very high reflectivity (>99.7%) are key optical components in laser resonators. Output couplers are partially reflective mirrors to extract a portion of the laser beam from the laser resonator. They often require a slight wedge to prevent interference from multiple reflections inside the component.
Diameter Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Centration: < 3 arc min
Clear Aperture: >90%
Surface Quality: 40-20 S-D
Angle of Incidence: 0°
LIDT: 5.1 MW/cm² @ 10.6µm
| Product Type | Part Number | Wavelength (nm) | Material | Dia (mm) | ET (mm) | Radius | Reflectivity (%) |
|---|---|---|---|---|---|---|---|
| Rear Mirror | RSI-1-4.5-3MCC | 10600 | Silicon | 25.4 | 4.5 | 3M Concave | >99.7% |
| Rear Mirror | RSI-1-4.5-5MCC | 10600 | Silicon | 25.4 | 4.5 | 5M Concave | >99.7% |
| Output Coupler | OCZ-0.5-2-80%R | 10600 | ZnSe | 12.7 | 2.0 | Plano | 80+/-3% |
| Output Coupler | OCZ-0.5-3-92%R | 10600 | ZnSe | 12.7 | 3.0 | Plano | 92+/-3% |
| Output Coupler | OCZ-0.75-2-70%R | 10600 | ZnSe | 19.1 | 2.0 | Plano | 70+/-3% |
| Output Coupler | OCZ-0.75-3-85%R | 10600 | ZnSe | 19.1 | 3.0 | Plano | 85+/-3% |
| Output Coupler | OCZ-0.75-2-95%R-5MCC | 10600 | ZnSe | 19.1 | 2.0 | 5M Concave | 95+/-3% |
| Output Coupler | OCZ-20-85%R-3MCC | 10600 | ZnSe | 20.0 | 3.5 | 3M Concave | 85+/-3% |
| Output Coupler | OCZ-25-3-70%R | 10600 | ZnSe | 25.0 | 3.0 | Plano | 70+/-3% |
| Output Coupler | OCZ-25-3-95%R | 10600 | ZnSe | 25.0 | 3.0 | Plano | 95+/-3% |
| Output Coupler | OCZ-1-3-80%R | 10600 | ZnSe | 25.4 | 3.0 | Plano | 80+/-3% |
| Output Coupler | OCZ-1-3-85%R | 10600 | ZnSe | 25.4 | 3.0 | Plano | 85+/-3% |
CO2 Mirrors
Reflective CO2 mirrors must have low reflection losses, high optical quality, and good resistance against extreme optical intensity.
Diameter Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Parallelism: ≤3 arc min
Clear Aperture: >90%
Surface Flatness: λ/4 per 1” Dia @ 632.8nm
Surface Quality: 40-20 S-D
Angle of Incidence: 45°
| Product Type | Part Number | Wavelength (nm) | Material | Dia (mm) | ET (mm) |
|---|---|---|---|---|---|
| Reflective Mirror | RSI-0.75-3 | 10600 | Silicon | 19.1 | 3.0 |
| Reflective Mirror | RSI-1-3 | 10600 | Silicon | 25.4 | 3.0 |
| Reflective Mirror | RSI-1.1-3 | 10600 | Silicon | 27.9 | 3.0 |
| Reflective Mirror | RSI-1.5-4 | 10600 | Silicon | 38.1 | 4.0 |
| Reflective Mirror | RSI-2-5 | 10600 | Silicon | 50.8 | 5.1 |
| Reflective Mirror | RSI-2-9.5 | 10600 | Silicon | 50.8 | 9.5 |
Thin Film Polarizers
Thin film polarizers (TFP series) are used to split a laser beam into two parts with S and P Polarizations. Meanwhile, they can also be used to combine two beams with S and P polarizations. They consist of a coated plate, which is oriented at Brewster’s angle with respect to the incoming beam. The thin-film coating is able to enhance the reflectivity of the s-polarized component of the beam and maintain high transmission of the p-polarized component.
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 40-20 S-D
Coating: Tp =97%+/-0.5%@10.6um | Rs =97%+/-0.5%@10.6μm
Angle of Incidence: 67.3˚ (brewster angle@10.6μm)
| Product Name | Part Number | Wavelength (nm) | Dimension (mm x mm) | Material | Thickness (mm) | Angle on Incidence (°) |
|---|---|---|---|---|---|---|
| Thin Film Polarizer | TFP-Z-19x38x3M | 10600/9400 | 19 x 38 | ZnSe | 3.0 | Brewster |
| Thin Film Polarizer | TFP-Z-25x64x3M | 10600/9400 | 25 x 64 | ZnSe | 3.0 | Brewster |
Optical Windows
ZnSe optical (WZ Series) and ZnSe brewster windows (WZB Series) are commonly used in thermal resistance applications. These optical windows are available with us in coated or uncoated form and in a wide variety of shapes and sizes. It has wide usage in high-power CO2 laser systems.
Dimension Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Parallelism: ≤3 arc min.
Clear Aperture: >90%
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 60-40 S-DAR
Coating: R<0.2% per surface @10.6μm
Angle of Incidence: Brewster Angle @ 10.6μm
| Part Number | Wavelength (nm) | Material | Diameter (mm) | Thickness (mm) | Application |
|---|---|---|---|---|---|
| WZ-0.5-2 | 10600/9400 | ZnSe | 12.7 | 2 | Protective |
| WZ-18-2 | 10600/9400 | ZnSe | 18.0 | 2 | Protective |
| WZ-0.75-3 | 10600/9400 | ZnSe | 19.1 | 3 | Protective |
| WZ-1-3 | 10600/9400 | ZnSe | 25.4 | 3 | Protective |
| WZ-1.1-3 | 10600/9400 | ZnSe | 27.9 | 3 | Protective |
| WZ-1.5-3 | 10600/9400 | ZnSe | 38.1 | 3 | Protective |
| WZ-50-3 | 10600/9400 | ZnSe | 50.0 | 3 | Protective |
| WZ-2-5 | 10600/9400 | ZnSe | 50.8 | 5 | Protective |
| WZ-55-3 | 10600/9400 | ZnSe | 55.0 | 3 | Protective |
| WZ-60-3 | 10600/9400 | ZnSe | 60.0 | 3 | Protective |
| WZ-75-3 | 10600/9400 | ZnSe | 75.0 | 3 | Protective |
| WZ-80-3 | 10600/9400 | ZnSe | 80.0 | 3 | Protective |
| WZ-88-3 | 10600/9400 | ZnSe | 88.0 | 3 | Protective |
| WZ-90-3 | 10600/9400 | ZnSe | 90.0 | 3 | Protective |
| WZ-110-5 | 10600/9400 | ZnSe | 110.0 | 5 | Protective |
| WZ-180-6 | 10600/9400 | ZnSe | 180.0 | 6 | Protective |
| WZB-0.5x1.3-2C(Corner cut) | 10600/9400 | ZnSe | 12.7 x 33.0 | 2 | Protective |
| WZB-0.5x1.3-2 | 10600/9400 | ZnSe | 12.7 x 33.0 | 2 | Protective |
| WZ-15x18-1 | 10600/9400 | ZnSe | 15.0 x 18.0 | 1 | Protective |
| WZB-0.6x1.5-2 | 10600/9400 | ZnSe | 15.2 x 38.1 | 2 | Protective |
| WZB-0.7x1.8-2 | 10600/9400 | ZnSe | 17.7 x 45.7 | 2 | Protective |
| WZB-0.75x1.5-3 | 10600/9400 | ZnSe | 19.0 x 38.1 | 3 | Protective |
| WZB-20.3x52.8-3 | 10600/9400 | ZnSe | 20.3 x 52.8 | 3 | Protective |
| WZB-25x50-3 | 10600/9400 | ZnSe | 25.0 x 50.0 | 3 | Protective |
| WZB-25x66-3 | 10600/9400 | ZnSe | 25.0 x 66.0 | 3 | Protective |
| WZB-1.0x2.6-3 | 10600/9400 | ZnSe | 25.4 x 66.0 | 3 | Protective |
| WZB-26.42x10.16-2 | 10600/9400 | ZnSe | 26.42 x 10.16 | 2 | Protective |
| WZB-30x75-5 | 10600/9400 | ZnSe | 30.0 x 75.0 | 5 | Protective |
| WZ-31.75x31.75-4 | 10600/9400 | ZnSe | 31.7 x 31.7 | 4 | Protective |
| WZB-1.5x3.9-4 | 10600/9400 | ZnSe | 38.1 x 99.1 | 4 | Protective |
| WZ-50x80-3 | 10600/9400 | ZnSe | 50.0 x 80.0 | 3 | Protective |
| WZB-2.0x5.2-5 | 10600/9400 | ZnSe | 50.8 x 132.1 | 5 | Protective |
| WZB-53x20-3 | 10600/9400 | ZnSe | 53.0 x 20.0 | 3 | Protective |
| WZ-65x85-3 | 10600/9400 | ZnSe | 65.0 x 85.0 | 3 | Protective |
| WZ-90x60-3 | 10600/9400 | ZnSe | 90.0 x 60.0 | 3 | Protective |
| WZ-92x68-3 | 10600/9400 | ZnSe | 92.0 x 68.0 | 3 | Protective |
| WZ-95x95-3 | 10600/9400 | ZnSe | 95.0 x 95.0 | 3 | Protective |
| WZ-150x105-3 | 10600/9400 | ZnSe | 150.0 x 105.0 | 3 | Protective |
| WZ-185x125-6 | 10600/9400 | ZnSe | 185.0 x 125.0 | 6 | Protective |
CO2 Optics Applications
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