Fully optically integrated laser Top Hat illumination system for life sciences, environmental and scientific applications.
Features
Applications
| Specifications | |
|---|---|
| Top Hat Dimension/ROI (µm) | K*F (mm) |
| Top Hat Constant (K) | 1, 1.5, 2, 2.5, 3, 3.5, 5, 6, 8, 10, 15, 20, 30, 4, 50, 70, 90 |
| Top Hat Uniformity Over ROI (Cv) | Down to 1% |
| Top Hat Contained Energy Over ROI | > 80% (typical) |
| Gaussian Axis Dimension (µm @1/E2) | G*F(mm) Dependent On Model |
| Gaussian Axis Constant (G) | See Options |
| Imaging Lens (F) (Ith Option Only) | 15, 20, 25, 30, 40, 50, 75, 100 mm |
| Laser Specifications | |
| Power Stability | <2% (drift over 48h at room temperature ±3°C) |
| RMS Noise | <0.2% (20 Hz – 20 MHz) |
| Pointing Stability | < 5 µrad / C |
| M2 | < 1.2 |
| Analogue Modulation | 500 KHz max., <0.7 us Rise/Fall time (10 % – 90 %) |
| Digital Modulation | 5V TTL or LVDS signal levels, < 5 ns (10 % – 90 %) Rise/Fall time, 70 MHz |
| Communication | RS232, RS485, USB, no external device required |
| DC Input | 12 V DC, 2A |
| Power Consumption | < 25W |
| Heat Dissipation | < 12 W (baseplate @ 50 °C) |
| Warm-up Time | < 5 min |
| Temperature | 15°C – 40°C (operation), -10°C -60 °C (storage) |
| Relative Humidity | < 90 % (non-condensing) |
Osela’s ITH option is a fully integrated, OEM ready laser that creates a Top Hat profile of desired dimension at the focal plane of its integrated imaging lens system. The Top Hat dimension is directly proportional to the focal length of the imaging lens (F) and the Top Hat constant (K), with no additional optical system required.
Osela’s DTH option is designed to create a Top Hat profile at the focal plane of a customer’s existing optical system. The Top Hat dimension and Gaussian axis are flexible and scale with the effective focal length of the system. This option has the advantage of being independent of distance between the laser and the imaging system.
| Model [1] | Wavelength (nm) | Tolerance (nm) | Diode Power (mW) | Gaussian Axis Dimension Constant[2] | |
|---|---|---|---|---|---|
| G (min) | G (max) | ||||
| 375 | 375 | ±5 | 70 | 0.1 | 0.4 |
| 395 | 395 | ±5 | 120 | 0.1 | 0.55 |
| 405 | 405 | ±5 | 120, 150, 300 | 0.15 | 0.4 |
| 420 | 422 | ±3 | 120 | 0.15 | 0.55 |
| 445 | 445 | ±5 | 100 | 0.15 | 0.45 |
| 450 | 450 | ±10 | 80 | 0.15 | 0.45 |
| 455 | 455 | ±5 | 100 | 0.1 | 0.5 |
| 460 | 460 | ±5 | 100 | 0.1 | 0.5 |
| 473 | 473 | ±5 | 100, 300 | 0.1 | 0.45 |
| 488 | 488 | ±5 | 60,200 | 0.1 | 0.55 |
| 505 | 505 | ±2 | 80 | 0.1 | 0.5 |
| 515 | 515 | ±5 | 80, 150 | 0.1 | 0.5 |
| 520 | 521 | ±10 | 50, 520 | 0.15 | 0.5 |
| 633 | 633 | ±3 | 100 | 0.15 | 0.85 |
| 640 | 640 | ±5 | 150, 200 | 0.2 | 1 |
| 660 | 660 | ±6 | 50, 100, 200 | 0.25 | 0.9 |
| 685 | 685 | ±15 | 50 | 0.2 | 0.85 |
| 785 | 785 | ±10 | 50, 120 | 0.2 | 0.75 |
| 830 | 827 | ±10 | 50, 100, 250 | 0.2 | 1.3 |
| [1] Additional models (wavelengths & optical powers) available upon request. [2] Typical values are presented as reference only. A +/-10% variation is to be expected. Custom G values available upon request. |
If you’re interested in the products shown here, or have questions about something you can’t find on our website, please get in touch through the form below.
Our knowledgeable sales team will be happy to help. We can normally source exactly what you need, or work with you to come up with custom solutions.
Alternatively, just call +44 (0) 1933 461 666 and ask to speak to the Photonics team.
