FCH Fibre-Coupled Optical Homogeniser
Device
| FCH-500 | FCH-1000 | |
|---|---|---|
| Device type | Microlens-array (MLA) based optical homogeniser | |
| Input type | Fibre-coupled optical input | |
| Projected field shape | Square | |
| Projected field size | 60 mm × 60mm | 120 mm × 120mm |
| Working distance | 500 mm | 1000 mm |
Optical
| FCH-500 | FCH-1000 | |
|---|---|---|
| Spectral range | 200 nm to 2.5 µm | |
| Typical throughput | 50% at 550 nm | |
Fibre Interface
| FCH-500 | FCH-1000 | |
|---|---|---|
| Input fibre interface | SMA-905 / FC-PC / custom | |
| Compatible fibre numerical aperture | Designed for 0.22 NA multimode fibre; other fibre NAs can be assessed for specific configurations | |
| Recommended fibre core | 200 µm to 800 µm | |
Input Configuration
| FCH-500 | FCH-1000 | |
|---|---|---|
| Input configurations | Single passive fibre input / dual motorised fibre inputs | |
| Input selection | Passive for single-input version; USB or front-panel control for dual-input version | |
Uniformity
| FCH-500 | FCH-1000 | |
|---|---|---|
| Typical U2 ≥ 98% area | 3300 mm² | 13200 mm² |
| Typical U2 ≥ 99% area | 1200 mm² | 4800 mm² |
| Max U2 ≥ 98% area | 1800 mm² | 7200 mm² |
| Uniformity definition (U2) | U2 is the minimum grid-cell irradiance divided by the maximum grid-cell irradiance within the measured area | |
| Uniformity area definition | Uniformity area is the largest contiguous measured area meeting the stated U2 criterion | |
| Uniformity measurement conditions | Measured at the working distance using a 600 µm 0.22 NA input fibre | |
