Description
Inspired by our clients, Geola Digital manufactures custom-made sophisticated handy devices Laser Beam Combiner with Exposure Control module for merging two, three or more outputs of separate laser beams into single optical beam path. It could be produced for use in the UV, VIS, and NIR spectral ranges from 250 nm to 2000 nm. For example, it is easy to combine a separate R, G and B lasers in to single white light beam path at the same time having full control and monitoring of individual laser beams per channel.
Device incorporates a fast mechanical shutters and energy attenuators. Fast shutter is based on electro-mechanical actuator where energy attenuator comprises of a high contrast thin-film polarizer and motorized half waveplate giving easy energy attenuation control for each channel combined. The Beam Combiners can be also equipped with energy monitoring option, allowing precise beam manipulation of individual channel at the combined beam. The LBC-3EC equipped with pulsed laser radiation detection and measuring option acts as pulse picker – burst mode organizer, which can be used for passively Q-Switched pulsed lasers (capable extracting even a single pulse from 60Hz rep rate). Since each pulse of the individual channel is measured, the device is capable using precise expose control, energy accumulation or pulse burst counting system.
Features
- Customized design – device is adopted for individual client application needs
- Energy attenuation for each laser beam combined
- Energy monitoring of each laser beam combined
- Pulse picker – Burst mode organizer, synchronization with each pulsed laser used
- Intuitive software interface
Operation Regimes
- Laser energy accumulation (exposure) control – mechanical shutter open/close duration priority setting.
- Pulse count/picker – burst mode organizer setting
- Hybrid regime (user defines regime for individual channel)
Specifications
| Combined wavelengths* | R + G + B |
| Aperture | Ø1/2″ (customable) |
| Laser type | CW or Pulsed |
| Minimum Shutter Exposure time | 15 ms |
| Shutter Life-Time | Min. 50 million cycles |
| Accuracy | 0.1 ms |
| Housing incorporates required controllers | YES |
| Beam attenuation range | 0.2 – 96 % |
| Standard smallest WP rotation | 0.015° |
| Wavelengths combined | a few from the range 266 nm – 2000 nm |
| Contrast | NIR – 1:1000 VIS – 1:1000 UV – 1:500 |
| Damage threshold | up to > 10 J/cm2 |
| Beam combination efficiency | up to 96 % |
| Power supply (MAINS) | 24 VDC |
| External Triggering | BNC, TTL, 3.5 – 5 V |
| Device Control interface | PC (supplied software) |
| Communication port | USB / RS485 / RS232 |
| Housing material | Anodised Aluminium |
| Dimensions (L x W x H) | 375 x 170 x 175 mm (customized) |
Application
- Laser energy/power control and attenuation
- Laser exposure control
- For Research
