Alphalas Modelocked Picosecond DPSS Laser
| Brand | Alphalas |
|---|---|
| Origin | Germany |
| Product Type | Imported Diode-Pumped Solid-State (DPSS) Laser System |
| Model | Modelocked_Picosecond_DPSS_Lasers |
| Wavelength Range | Fundamental IR Output (Typ. 1064 nm), Optional Harmonic Generation (532 nm, 355 nm, 266 nm) |
| Pulse Duration | <15 ps (FWHM) |
| Repetition Rate | 10–100 MHz (Standard), Configurable |
| Average Power | Up to 1.5 W @ 1064 nm |
| Peak Power | >100 kW |
| Beam Quality | M² < 1.2 |
| Noise | RMS < 0.3% (10 Hz–10 MHz) |
| Operation Mode | CW-mode-locked, Turnkey Operation |
| Cooling | Air-cooled |
| Compliance | CE, RoHS, IEC 60825-1:2014 Class 4 Laser Product |
Overview
The Alphalas Modelocked Picosecond DPSS Laser is a diode-pumped, passively mode-locked solid-state laser system engineered for high temporal precision and exceptional amplitude stability in demanding optical research and industrial applications. Based on Nd:YVO₄ or Nd:YAG gain media with semiconductor saturable absorber mirror (SESAM) technology, it generates transform-limited picosecond pulses via passive mode-locking—ensuring intrinsic synchronization, minimal timing jitter (100 kW), and outstanding beam quality (M² < 1.2), making it suitable for pump-probe experiments, optical parametric amplification seeding, and precision micromachining of wide-bandgap materials.
Key Features
- Passively mode-locked architecture using SESAM for robust, self-starting operation without external RF drivers
- Sub-15 ps pulse width (FWHM) with excellent pulse-to-pulse stability (RMS intensity noise < 0.3% over 10 Hz–10 MHz bandwidth)
- Turnkey air-cooled design with integrated thermal management and digital control interface (RS-232/USB)
- Configurable repetition rate from 10 MHz to 100 MHz, optimized for time-domain sampling and cavity-dumping compatibility
- Harmonic generation-ready platform supporting optional SHG, THG, and FHG modules with >50% conversion efficiency at rated power levels
- Class 4 laser safety compliance per IEC 60825-1:2014, including interlock-ready connectors and key-switched enable circuitry
Sample Compatibility & Compliance
This laser system is compatible with standard optical breadboards, kinematic mounts, and commercial ultrafast diagnostics (e.g., autocorrelators, FROG, RF spectrum analyzers). Its TEM₀₀ Gaussian beam profile ensures efficient coupling into single-mode fibers, hollow-core waveguides, and nonlinear crystals. The system meets international regulatory requirements for laboratory lasers, including CE marking under the EU Machinery Directive and RoHS 2011/65/EU. For GMP/GLP environments, optional audit-trail logging and password-protected parameter locking are available via firmware upgrade. It adheres to ASTM E2912–21 guidelines for ultrafast laser characterization and supports traceable calibration protocols aligned with ISO/IEC 17025-accredited metrology labs.
Software & Data Management
The laser includes embedded microcontroller-based firmware with real-time monitoring of diode current, crystal temperature, and output power. A Windows-compatible GUI (Alphalas LaserControl v3.x) provides remote adjustment of repetition rate, Q-switch delay (if equipped), and harmonic selection. All operational parameters—including timestamped power logs, alarm history, and thermal drift records—are exportable in CSV or HDF5 format. The software supports SCPI command set for integration into LabVIEW, MATLAB, or Python-based automation frameworks. Audit trail functionality satisfies FDA 21 CFR Part 11 requirements when used with validated IT infrastructure and electronic signature modules.
Applications
- Ultrafast pump-probe spectroscopy of carrier dynamics in semiconductors and 2D materials
- Time-resolved photoluminescence (TRPL) and fluorescence lifetime imaging (FLIM)
- Two-photon polymerization and femtosecond-like ablation of diamond, SiC, and sapphire
- Optical clock distribution and photonic ADC triggering in high-speed communication testbeds
- Seeding of optical parametric chirped-pulse amplifiers (OPCPA) and tunable mid-IR sources
- Calibration of streak cameras and single-photon avalanche diode (SPAD) arrays
FAQ
Is harmonic generation included by default?
No—fundamental IR output (1064 nm) is standard; harmonic modules (532 nm, 355 nm, 266 nm) are optional accessories requiring separate ordering and alignment.
Can this laser be synchronized to an external clock signal?
Yes—via the TTL-sync input port, enabling phase-locked operation with external RF sources or delay generators for multi-laser experiments.
What maintenance is required during normal operation?
None beyond periodic inspection of optical surfaces and verification of cooling airflow; no consumables or alignment adjustments are needed under recommended environmental conditions (20–25°C, <60% RH).
Does the system support OEM integration?
Yes—custom mechanical housings, fiber-coupled outputs, and OEM firmware APIs are available under NDA and volume agreements.
Is laser-induced damage threshold (LIDT) data provided for nonlinear crystals?
Yes—certified LIDT values (at 1064 nm, 10 ps, 10 Hz) are supplied with each harmonic module, measured per ISO 21254-2:2018 standards.
