
Specifically designed for ultraviolet laser applications, it adopts a Galilean telescope structure, composed of a negative lens and a set of air-spaced positive lenses. This beam expander can enlarge or reduce parallel incident beams within the working wavelength by a fixed magnification factor. The transmitted wavefront error after expansion/reduction is better than λ/4, with minimal aberration and extremely low impact on beam quality. An adjustment ring is provided at the waist of the beam expander to adjust the divergence angle of the output beam, meeting the requirements for non-collimated beam expansion. The adjustment ring features a special mechanical design; when rotated, the internal lens moves only along the optical axis without rotating with the ring, effectively suppressing beam position shift during divergence angle adjustment, ensuring more stable and reliable operation. Different thread interfaces are provided at the input and output ends for easy system integration. The waist supports clamping installation via a holder, flexibly adapting to various application scenarios.

Assembly Diagram
Product Model | Magnification | Spot size at the diffraction limita | Focus distance | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|---|
| FBE-2X-UV New | 2X | Ø8.5 mm | ±1.2 m | $615.79 | today | Add Cart | |||
| FBE-3X-UV New | 3X | Ø9.0 mm | ±2.5 m | $688.88 | today | Add Cart | |||
| FBE-5X-UV New | 5X | Ø4.3 mm | ±2.0 m | $750.72 | today | Add Cart |

Specifically designed for high transmittance applications in the 355 nm band, it adopts a Galilean telescope system structure, consisting of a negative lens and a set of air-spaced positive lenses. This beam expander can enlarge or reduce parallel incident beams within the working wavelength by a fixed magnification factor, with a transmitted wavefront error better than λ/4 after expansion/reduction, minimal aberrations, and extremely low impact on beam quality. The waist of the beam expander is equipped with an adjustment ring for setting the divergence angle of the output beam, meeting the requirements for non-collimated beam expansion. The adjustment ring features a special mechanical design, where the internal lens moves only along the optical axis without rotating with the ring when turned, effectively suppressing beam position deviation during divergence angle adjustment, ensuring more stable and reliable operation. The input and output ends are provided with threaded interfaces of different specifications for easy system integration. The waist supports clamp mounting via a holding fixture, flexibly adapting to various application scenarios.

Assembly Diagram
Product Model | Magnification | Spot size at the diffraction limita | Focus distance | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|---|
| FBE-2X-355 New | 2X | Ø8.5 mm | ±1.2 m | $615.79 | today | Add Cart | |||
| FBE-3X-355 New | 3X | Ø9.0 mm | ±2.5 m | $688.88 | today | Add Cart | |||
| FBE-5X-355 New | 5X | Ø4.3 mm | ±2.0 m | $750.72 | today | Add Cart | |||
| FBE-10X-355 New | 10X | Ø2.8 mm | ±4.0 m | $881.59 | today | Add Cart | |||
| FBE-20X-355 New | 20X | Ø2.0 mm | ±16.0 m | $1,001.74 | today | Add Cart |

Designed for high transmittance applications in the 532 nm band, this beam expander adopts a Galilean telescope structure, consisting of a negative lens and a set of air-spaced positive lenses. It can expand or reduce parallel incident beams within the operating wavelength by a fixed magnification factor. The transmitted wavefront error after expansion/reduction is better than λ/4, with minimal aberration and extremely low impact on beam quality. A调节环 is located on the waist of the beam expander for adjusting the divergence angle of the output beam, meeting the requirements for non-collimated beam expansion. The调节环 features a special mechanical design that ensures the internal lenses only translate along the optical axis without rotating with the ring body when turned, effectively suppressing beam position offset during divergence angle adjustment, thus ensuring more stable and reliable use. The input and output ends are equipped with threaded interfaces of different specifications for easy system integration. The waist supports clamp mounting for flexible adaptation to various application scenarios.

Assembly Diagram
Product Model | Magnification | Spot size at the diffraction limita | Focus distance | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|---|
| FBE-2X-532 New | 2X | Ø8.5 mm | ±1.2 m | $615.79 | today | Add Cart | |||
| FBE-3X-532 New | 3X | Ø9.0 mm | ±2.5 m | $688.88 | today | Add Cart | |||
| FBE-5X-532 New | 5X | Ø4.3 mm | ±2.0 m | $750.72 | today | Add Cart | |||
| FBE-10X-532 New | 10X | Ø2.8 mm | ±4.0 m | $881.59 | today | Add Cart | |||
| FBE-20X-532 New | 20X | Ø2.0 mm | ±16.0 m | $1,001.74 | today | Add Cart |

Designed for high transmittance applications in the 1064 nm band, it adopts a Galilean telescope system structure, consisting of a negative lens and an air-spaced positive lens assembly. This beam expander can enlarge or reduce the parallel incident beam within the working wavelength by a fixed magnification factor, with the transmitted wavefront error after beam expansion/reduction better than λ/4, minimal aberration, and extremely low impact on beam quality. The waist of the beam expander is equipped with an adjustment ring for adjusting the divergence angle of the output beam, meeting the requirements of non-collimated beam expansion. The adjustment ring adopts a special mechanical design: when rotated, the internal lens only translates along the optical axis without rotating with the ring body, effectively suppressing beam position deviation during divergence angle adjustment, ensuring more stable and reliable operation. The input and output ends are respectively provided with different specifications of threaded interfaces, facilitating system integration. The waist supports clamp mounting through a clamping fixture, flexibly adapting to various application scenarios.

Assembly Diagram
Product Model | Magnification | Spot size at the diffraction limita | Focus distance | File | Unit Price | Compare | Lead Time | ||
|---|---|---|---|---|---|---|---|---|---|
| FBE-2X-1064 New | 2X | Ø8.5 mm | ±1.2 m | $615.79 | today | Add Cart | |||
| FBE-3X-1064 New | 3X | Ø9.0 mm | ±2.5 m | $688.88 | today | Add Cart | |||
| FBE-5X-1064 New | 5X | Ø4.3 mm | ±2.0 m | $750.72 | today | Add Cart | |||
| FBE-10X-1064 New | 10X | Ø2.8 mm | ±4.0 m | $881.59 | today | Add Cart | |||
| FBE-20X-1064 New | 20X | Ø2.0 mm | ±16.0 m | $1,001.74 | today | Add Cart |