Tunable sources & filters
Broadband Tunable Filter
A motorised filter for selecting a visible band from an existing broadband source. Input and output collimation provide a configurable interface to supercontinuum and other suitable illumination systems.
Best suited to
Selecting a visible excitation band while retaining more spectral width than a narrow monochromator setting.
Selecting a configuration
Specify input beam geometry, spectral power and the desired bandwidth. Transmission through the filter and coupling efficiency describe different parts of the optical path.
Measurement & configuration
- Motorised band selection over the visible spectrum.
- USB control for automated wavelength scans.
- Collimator input and output; source purchased separately.
Plan the signal path
- 1Broadband input
- 2Motorised band selection
- 3Collimated filtered output
Specifications
| Tuning interval | 400–750 nm |
|---|---|
| Adjustable bandwidth | 10–100 nm |
| Tuning speed | 40 nm/s |
| Wavelength accuracy | ±2 nm |
| Optical transmission | >70% |
| Published coupling efficiency | 30% |
| Polarisation | Random |
| Power / control | 100–240 V AC; USB |
Configuration note: The technical parameter table specifies 10–100 nm bandwidth; the wider 10–300 nm statement in introductory copy is not used here.
Configure BTF
Send the wavelength interval, signal level, timing and sample requirements for your experiment.