ALS-VIS

• High-power single-frequency CW visible laser for demanding precision applications.
• Optical output power of up to 10 W, depending on wavelength.
• Covers visible wavelengths from approximately 488 nm to 785 nm.
• Combines high power, single-mode operation, single-frequency capability, and ultra-low intensity noise.
• TEM₀₀ spatial mode with M² < 1.1 for excellent beam quality.
• <0.02% RMS intensity noise over 100 Hz–10 MHz.
• <±0.5% long-term power stability in constant-power mode.
• All-fiber architecture provides robust, alignment-free operation.
• The coolerless laser head helps provide excellent beam-pointing stability and consistent beam quality.
• Designed for turnkey, maintenance-free, industrial-grade operation.
• Can be supplied as either a laser or amplifier, depending on the selected seed laser.
• Based on single-pass second-harmonic generation (SHG) linked to the ALS-IR platform.
• An optional dual-output laser head provides access to the unconverted IR output.
• Suitable as a modern, efficient alternative to traditional argon-ion lasers for wavelengths such as 488 nm and 515 nm.

The TOPTICA ALS-VIS is a high-power, single-frequency continuous-wave visible fiber laser and amplifier platform designed for applications that require high optical power together with excellent beam quality, low noise, and long-term stability.

The ALS-VIS combines the advantages of fiber amplification technology with visible-light generation through single-pass second-harmonic generation (SHG). The resulting system provides high-power visible output while retaining the characteristics required for precision optical applications, including single-mode operation, single-frequency capability, and very low intensity noise.

A major advantage of the ALS-VIS is its high optical power without compromising beam quality. Depending on wavelength, the system can provide up to 10 W of visible output, while maintaining a TEM₀₀ beam with M² < 1.1. This makes the laser suitable for applications where a clean, high-quality beam must be delivered at relatively high power.

The system also provides ultra-low intensity noise below 0.02% RMS from 100 Hz to 10 MHz and long-term power stability below ±0.5% in constant-power operation. These characteristics are particularly valuable in precision metrology, semiconductor inspection, holography, and quantum-technology experiments where fluctuations in laser intensity can directly affect measurement performance.

The all-fiber architecture eliminates the need for complex optical alignment, while the coolerless laser head contributes to stable beam pointing and consistent beam quality. This architecture also enables reliable integration into both industrial systems and academic research setups.

One particularly important application is argon-ion laser replacement. Traditional argon-ion lasers used at wavelengths such as 488 nm and 515 nm are relatively inefficient, bulky, require water cooling, and can require frequent tube replacement. The ALS-VIS provides a more compact fiber-laser-based alternative with improved efficiency, reliability, and maintenance characteristics.

Product Type: High-Power Single-Frequency CW Visible Fiber Laser / Amplifier
Model: ALS-VIS
Operation: Continuous Wave (CW)
Wavelength Range: 488–785 nm*
Maximum Output Power: Up to 10 W*
Frequency Conversion: Single-Pass SHG
Spatial Mode: TEM₀₀
Beam Quality: M² < 1.1
Free-Space Beam Diameter: 1.0 ± 0.2 mm
Long-Term Power Stability: < ±0.5%
Intensity Noise: <0.02% RMS, 100 Hz–10 MHz
Output Polarization: Vertical, >300:1
Output Power Tunability: 1–100%
Recommended Operating Range: 10–100%
Architecture: All-Fiber
Laser Head Cooling: Coolerless
Single-Frequency Compatible: Yes
Seed Laser: Optional
Fiber Input: FC/APC
Dual IR Output: Optional
Rack Cooling: Air- or Water-Cooled, depending on configuration
Remote Control: Optional ALS-RCI
Laser Classification: Class 4

1. Holography & Augmented Reality

• Digital Holography
• Holographic Optical Elements
• Augmented Reality (AR)
• Holographic Displays
• Optical Security
• Precision Optical Systems

The ALS-VIS provides the high optical power, stable beam quality, and low noise required for demanding holographic systems. TOPTICA specifically identifies holography and augmented reality as key application areas.

2. Direct-Writing Lithography

• Direct-Writing Lithography
• Microfabrication
• Micro- and Nanopatterning
• Photonic Device Fabrication
• Custom Pattern Generation
• Precision Laser Writing

High-power visible laser output can be used for precise patterning where flexible or customized fabrication is required.

3. Semiconductor Inspection & Metrology

• Semiconductor Inspection
• Wafer Inspection
• Optical Metrology
• Surface Characterization
• Precision Measurement
• Thin-Film Measurement

The ALS-VIS is designed for high-performance metrology applications where power stability, beam quality, and low noise are critical. TOPTICA specifically lists semiconductor inspection and metrology among its target applications.

4. Argon-Ion Laser Replacement
The ALS-VIS can serve as a modern alternative to conventional argon-ion lasers, particularly for wavelengths such as

• 488 nm
• 515 nm

Compared with traditional argon-ion technology, the fiber-based architecture offers advantages including reduced cooling complexity, improved reliability, lower maintenance requirements, and easier integration into modern optical systems.

5. Quantum Physics

• Quantum Optics
• Quantum Physics Research
• Precision Laser Systems
• Atom Optics
• Photonics Research

The high stability and low-noise characteristics of the ALS-VIS make it suitable for demanding quantum-physics experiments.

6. Quantum Computing & Simulation

• Atom-Based Quantum Systems
• Atom Quantum Computing
• Quantum Simulation
• Laser Cooling
• Atomic State Manipulation
• Ion-Based Quantum Systems
• Ion Quantum Computing
• Ion Trapping
• Laser Cooling
• Quantum State Control

TOPTICA specifically identifies both atom and ion quantum computing and simulation as applications for ALS-VIS.