Fiberchromator: monochromator for fiber coupled light sources
Any fiber-coupled light source can be attached to this compact, software-controlled fiber-to-fiber monochromator, e.g. a LED or laser-pumped plasma light source can be connected. The high light throughput results in a flexible, tunable point light source with high luminance at the output fiber.
Thanks to a magnetic-kinematic holder, the optical grating of the FiberChromator can easily be changed by the user. A number of gratings are available, optimized for the UV, VIS or NIR / MIR wavelength range, which can be exchanged in just a few steps thanks to a factory pre-adjustment. Depending on the fiber core diameter, bandwidths between 0.8 and 28 nm are possible.
A motorized filter wheel for up to 5 order sorting filters and a motorized shutter are integrated. Optionally, the Monochromator can be equipped with a high-speed shutter, which allows reproducible switching times of down to 10 ms.
The wavelength is selected from a PC or laptop via an USB interface. Easy-to-use software is included. External control and integration into your overall system are possible via LabVIEW™, Python, etc. as well as via direct ASCII commands.
The FiberChromator is the most versatile and easiest to use monochromator for fiber coupled light sources
Specifications of the FiberChromator: monochromator for fiber coupled light sources
| Optical input and output | SMA-connector for multi-mode fibers up to 1.5 mm core diameter |
| Focal length | 101.6 mm (4") |
| Aperture | f/2.7 (for fiber with NA = 0.22) |
| Wavelength range | 190 nm – 5.5 μm |
| Bandwidth | 1 - 20 nm FWHM* (see table 1) |
| Grating | 50x50 mm², mounted on adjusted holder for quick and easy change.
Various gratings available (see table 2) |
| Order sorting filters | Up to 5 filters, ½ inch, standard set (3 filters for UV-VIS-NIR) included |
| Reproducibility | typ. 0.1 nm* |
| Scanning speed | 100 - 300 nm/s* |
| Interface | RS-232 via USB-C connector (USB-C on USB-A cable included) |
| Options connector | Trigger In, Trigger/Busy Out, one additional Input and Output (TTL), +5 V/GND via 6-pol M8 sensor/actuator connector |
| Software | LabVIEW™-GUI; Direct control via RS-232 ASCII commands |
| Dimensions | 291 mm (l), 182 mm (w), 124 mm (h) |
| Weight | 4 kg |
| Power supply | Wall plug 12 V DC, 2.5 A (included), power consumptions ca. 5 W |
(*) depends on fiber core diameter and grating
Table 1: Bandwith of light from the output fiber of the FiberChromator
| Fiber core diameter | Lines per mm of the grating |
| | 300 | 600 | 1200 | 1800 | 2400 | 3600 |
| 200 µm | 8.0 nm | 4.0 nm | 2.0 nm | 1.3 nm | 1.0 nm | 0.7 nm |
| 400 µm | 12.4 nm | 6.2 nm | 3.1 nm | 2.1 nm | 1.6 nm | 1.0 nm |
| 1000 µm | 28.0 nm | 14.0 nm | 7.0 nm | 4.7 nm | 3.5 nm | 2.3 nm |
Table 2: Available gratings
| Lines per mm | Blaze wavelength/ maximum (nm) | Wavelength range (nm) |
| 300 | 300 | 230 – 1200 |
| 300 | 500 | 230 – 1200 |
| 300 | 1000 | 500 – 5000 |
| 600 | 250 | 200 – 1200 |
| 600 | 300 | 230 – 1200 |
| 600 | 400 | 230 – 1200 |
| 600 | 500 | 250 – 1500 |
| 600 | 1000 | 500 – 3300 |
| 600 | 1250 | 700 – 3300 |
| 600 | 1600 | 800 – 3300 |
| 1200 | 250 (holographic) | 200 – 1200 |
| 1200 | 300 | 230 – 1200 |
| 1200 | 400 | 230 – 1200 |
| 1200 | 500 | 230 – 1200 |
| 1200 | 750 | 400 – 1600 |
| 1200 | 1000 | 400 – 1600 |
| 1800 | 250 | 200 – 1000 |
| 1800 | 250 (holographic) | 200 – 1000 |
| 1800 | 450 (holographic) | 200 – 1000 |
| 1800 | 500 (holographic) | 200 – 1000 |
| 2400 | 250 (holographic) | 200 – 800 |
| 2400 | 450 (holographic) | 200 – 800 |
| 3600 | 300 (holographic) | 200 – 520 |
See the efficiency of the gratings in the technical specifications of the FiberChromator in the "Download" tab
Optionally, if you are interested in a tunable light source based on broadband source + monocrhomator, check our
HyperChromator