ZNA-J-491
The ZNA-J-491 LD Pumped All-Solid-State Blue Laser is a compact, reliable, and cost-effective CW laser source operating at 491 nm. Designed for long-term operation and easy integration, it delivers high-quality near TEM00 beam output with stable performance for laboratory, industrial, and OEM applications. The laser also includes amplitude noise ~30% (1–20 MHz) and fast warm-up (<10 minutes). Universal 90–264 VAC power supply and optional TTL/analog modulation allow seamless integration into scientific and optical systems.
Features
- Precise 491 nm Output – Central wavelength 491 ±1 nm.
- Compact Design – Beam height 29 mm for easy integration.
- Near TEM00 Beam Quality – M² <1.2 for high spatial coherence.
- Stable CW Operation – RMS power stability <10%.
- Low Beam Divergence – <1.5 mrad for precise beam alignment.
- High Polarization Ratio – >100:1 (0° or 90° optional).
- Long Lifetime – Up to 10,000 hours with minimal maintenance.
Applications
- Fluorescence sensing and excitation
- Raman spectroscopy
- Holography
- Laser printing
- Laser display systems
- Underwater optical communication
- Biomedicine
- Scientific experiments
- OEM optical integration
Specifications
| Parameter | ZNA-J-491 |
|---|---|
| Central Wavelength (nm) | 491 ±1 |
| Operating Mode | Continuous Wave (CW) |
| Output Power (mW) | >1, 2 |
| Power Stability (RMS, 4h) | <10% |
| Transverse Mode | Near TEM00 |
| Noise of Amplitude (RMS, 1–20 MHz) | ~30% |
| M² Factor | <1.2 |
| Beam Diameter at Aperture (1/e², mm) | ~3.0 |
| Beam Divergence (mrad) | <1.5 |
| Polarization Ratio | >100:1 (0° or 90°) |
| Warm-Up Time (minutes) | <10 |
| Beam Height from Base (mm) | 29 |
| Pointing Stability (mrad) | <0.05 |
| Operating Temperature (°C) | 10–35 |
| Power Supply | 90–264 VAC (QDI-J-ARF / QDI-J-GFS) |
| Expected Lifetime (hours) | 10,000 |
| Warranty | 1 year |
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