Fixed-Magnification Achromatic Beam Expander OSAE02-T4
JCOPTIX fixed-magnification achromatic beam expanders reduce divergence, optimize collimation, and expand or reduce a collimated beam diameter by factors of 2, 5, or 10. Their lenses provide wavefront error below λ/4 (@633 nm), with AR-coated surfaces to reduce air-glass reflection in the specified band. Expanded beams can focus to very small diffraction-limited waists, supporting optics and instruments with small input apertures. An adjustment ring finely positions lenses, and locking screws secure the collimating lens to reduce beam displacement. Standard SM1/SM2 threaded input and output ports simplify use with other components and integration into optical systems. Suitable for fiber communication, sensing and inspection, and laser systems, they are ideal for high-performance optical systems. JCOPTIX also customizes design bands, connector types, housing dimensions, and output spot sizes; contact technical support for requirements. Fixed-magnification achromatic beam expanders: Galilean design. Magnification: 2X, 5X, 10X. Operating bands: 400-700 nm, 650-1050 nm, 1050-1650 nm. Maximum input beam diameter: 4-10.0 mm. Standard SM1/SM2 threads for easy integration. The JCOPTIX Galilean design uses shorter spacing between expander lenses than a Keplerian design, allowing more compact systems. Available magnifications are 2X, 5X, and 10X; bands are 400-700 nm, 650-1050 nm, and 1050-1650 nm; maximum input diameters range from 4-10.0 mm. Every expander has standard SM1/SM2 threads for use with other components and easy optical-system integration.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Optical element material | H-ZF2，H-ZK3，H-ZF4，H-ZK9B |
| Operating Wavelength | 1050-1650 nm |
| Surface quality (scratch/dig) | 40/20 |
| Antireflection Coating R_avg [@ 1050-1650 nm] | R_avg< 0.5% @ 1050-1650 nm |
| Transmitted wavefront error [@633 nm] | < λ/4 |
| Magnification | 2X |
| Maximum Input Beam Diameter | 10.0 mm |
| Maximum Output Beam Diameter | 20.0 mm |
| Beam Spot Stability | < 1 mrad |
| Input-End Threaded Interface | Internal Thread: SM05; External Thread: SM1 |
| Maximum Housing Length [With Protective Cap / Without Protective Cap (Corresponding to Original Values, Respectively)] | 60.9 mm (with Protective Cap), 50.0 mm (Without Protective Cap) |
| Maximum Housing Diameter | 30.5 mm |
| Housing Material | 6061-T6 |
| Diffraction-Limited Input Beam Diameter | 9 mm |
| Diffraction-Limited Output Beam Diameter | 18 mm |
| Overall Transmittance T_avg [@ 1050-1650 nm] | T_avg >97.5% @ 1050-1650 nm |
| Degree of Collimation | Theoretical Design Collimation <30″; Decentering After Assembly Controlled to Approximately 3′ |
| Output-End Threaded Interface | External Thread: SM1 |
| Focusing Distance | ± 3 mm |
Key Features
Datasheet
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