ALPHALAS FEMTOLAS-200 Semiconductor-Pumped Diode-Pumped Solid-State (DPSS) Femtosecond Laser
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | FEMTOLAS-200 |
| Price | Upon Request |
Overview
The ALPHALAS FEMTOLAS-200 is a compact, diode-pumped solid-state (DPSS) femtosecond laser engineered for high-reproducibility ultrafast photonics applications. It operates on the principle of nonlinear mirror mode-locking (KLM) in an Yb-doped gain medium directly pumped by high-brightness semiconductor lasers—eliminating the need for complex, inefficient green-pump sources typical of Ti:sapphire systems. This architecture delivers intrinsic reliability, extended operational lifetime (>10,000 h for pump diodes), and robust thermal management without liquid cooling. The laser emits in the 1020–1050 nm spectral window with sub-200 fs pulse duration, 100 MHz repetition rate, and diffraction-limited beam quality (M² < 1.2), making it suitable for precision time-resolved spectroscopy, nonlinear microscopy, and coherent optical instrumentation where temporal fidelity and spatial coherence are critical.
Key Features
- Direct diode pumping of Yb-doped gain crystal—no intermediate frequency-doubling stages required
- Self-starting Kerr-lens mode-locking (KLM) with passive stabilization against environmental drift
- Output power: ≥200 mW average at 1020–1050 nm
- Pulse width: <200 fs (transform-limited, autocorrelation-measured)
- Repetition rate: 100 MHz (fundamental cavity frequency, jitter < 100 fs RMS)
- Beam profile: TEM₀₀, M² < 1.2, ellipticity < 1.05
- Power stability: <0.7% RMS over 8 hours (temperature-controlled enclosure)
- Integrated piezoelectric cavity length tuning for carrier-envelope phase (CEP) insensitive operation
- Front-panel USB 2.0 and RS-232 interfaces for remote parameter monitoring and control
Sample Compatibility & Compliance
The FEMTOLAS-200 is designed for integration into Class 1 or Class 4 laser safety-compliant optical benches per IEC 60825-1:2014 and ANSI Z136.1-2022 standards. Its sealed, alignment-free monolithic cavity eliminates sensitivity to vibration and ambient temperature fluctuations (operating range: 15–30 °C, <60% RH non-condensing). All optical coatings meet MIL-C-48497A durability specifications. The system supports optional harmonic generation modules (SHG, THG) certified to ISO 10110-7 surface quality requirements. For regulated environments, firmware logs include timestamped operational metadata compliant with FDA 21 CFR Part 11 audit-trail prerequisites when paired with ALPHALAS’ LabControl Suite v4.x.
Software & Data Management
ALPHALAS provides the cross-platform LabControl Suite—a deterministic, low-latency application built on Qt 5.15 and Python 3.9 backend—for real-time monitoring of output power, pulse train RF spectrum, cavity temperature, and diode current. Data export supports HDF5 and ASCII formats with embedded metadata (wavelength, pulse width estimate, M², acquisition timestamp). The software implements GLP-compliant electronic signatures, session-based user access levels (Operator/Engineer/Admin), and encrypted local storage of calibration history. Remote operation via TCP/IP is supported with TLS 1.2 encryption; no cloud dependency or telemetry transmission is enabled by default.
Applications
- Time-resolved fluorescence lifetime imaging (FLIM) and upconversion spectroscopy
- Two-photon excited fluorescence (TPEF) and second-harmonic generation (SHG) microscopy
- Optical coherence tomography (OCT) with axial resolution < 3 µm in tissue-equivalent phantoms
- Nonlinear optical parametric amplification (OPA) seeding and white-light continuum generation in photonic crystal fiber
- Laser-induced breakdown spectroscopy (LIBS) with sub-picosecond temporal gating capability
- Ultrafast pump-probe reflectometry for carrier dynamics in 2D materials and perovskites
- Frequency comb offset detection in metrology-grade interferometric setups
FAQ
Is the FEMTOLAS-200 compatible with external cavity dispersion compensation?
Yes—the laser features a collimated free-space output port with adjustable divergence (±0.2 mrad), enabling integration with standard grating or prism compressors. Group delay dispersion (GDD) tuning range: –500 to +2000 fs².
Can the repetition rate be externally synchronized?
Yes—via TTL-compatible 100 MHz reference input with phase-lock loop (PLL) bandwidth >10 kHz; residual timing jitter < 200 fs RMS when locked to a low-noise RF source.
What maintenance is required during normal operation?
None beyond periodic verification of beam pointing stability (quarterly) and cleaning of output window using Class 100 cleanroom protocol. No consumables, gas refills, or optical realignment are necessary.
Does the system support harmonic generation out-of-the-box?
No—SHG/THG modules are optional accessories (e.g., FEMTOLAS-SHG-525) requiring separate ordering and optical path integration. Each module includes thermally stabilized BBO or LBO crystals with AR-coated surfaces.
Is OEM integration supported with custom mechanical or electrical interfaces?
Yes—ALPHALAS offers mechanical redesign services (e.g., C-mount flange, 19″ rack mounting), custom power supply voltage ranges (12–48 VDC), and FPGA-based digital I/O expansion for industrial automation protocols (EtherCAT, Modbus TCP).
