Keopsys PYFL-KULT Series 1064 nm Pulsed Yb-Doped Fiber Laser Module

Overview

The Keopsys PYFL-KULT Series is a high-performance, compact pulsed ytterbium-doped fiber laser module engineered for precision applications requiring stable nanosecond-scale pulses at the fundamental Nd:YAG harmonic wavelength of 1064 nm. Based on master oscillator power amplifier (MOPA) architecture and optimized double-clad fiber design, the PYFL-KULT delivers exceptional beam quality (M² < 1.1), enabling diffraction-limited focusing essential for micromachining, time-resolved spectroscopy, and nonlinear frequency conversion. Unlike Q-switched bulk lasers, this all-fiber platform eliminates alignment sensitivity and offers intrinsic robustness against thermal drift and mechanical vibration—critical for integration into OEM systems or field-deployable instrumentation. Its fully sealed, conduction-cooled housing meets industrial environmental requirements without active cooling infrastructure.

Key Features

• Stable 1064 nm output with narrow spectral bandwidth (< 0.5 nm typical), suitable for pumping optical parametric oscillators (OPOs) and Ti:sapphire amplifiers.
• Adjustable pulse width from 0.1 ns to 30 ns via electronic control—enabling optimization of peak intensity versus material ablation threshold in laser processing.
• Programmable repetition rate spanning 10 Hz to 1 MHz, supporting both low-duty-cycle high-energy operation and high-throughput averaging modes.
• Integrated trigger input (TTL/LVDS) with jitter < 100 ps RMS, ensuring precise synchronization with external detectors, scanners, or pump-probe delay stages.
• Hermetically sealed, fiber-pigtailed output with FC/APC connector; optional free-space collimated beam delivery available upon request.
• Compliant with IEC 60825-1:2014 Class 4 laser safety standards; includes interlock circuitry and emission indicator per EN 60825-1.

Sample Compatibility & Compliance

The PYFL-KULT series is designed for compatibility with standard optical tables, vacuum chambers (via fiber feedthrough), and automated motion platforms. Its low timing jitter and pulse-to-pulse energy stability (< 1.5% RMS over 8 hours) support quantitative measurements in LIBS (Laser-Induced Breakdown Spectroscopy), LIDAR calibration, and single-shot plasma diagnostics. The module conforms to CE marking requirements and meets electromagnetic compatibility (EMC) standards per EN 55011 Class B. For regulated environments—including pharmaceutical analytical labs and aerospace testing facilities—the laser supports optional firmware logging for audit-ready operation records aligned with GLP principles.

Software & Data Management

Keopsys provides the K-LaserControl GUI (Windows/Linux), a native application enabling real-time monitoring of output power, internal temperature, pump diode current, and pulse parameters. All settings are stored in non-volatile memory and can be recalled via USB or RS-232 interface. The SDK includes C/C++, Python, and LabVIEW drivers compliant with IVI-C specification, facilitating seamless integration into custom test automation frameworks. Optional firmware upgrade path supports future enhancements including analog modulation input (0–5 V) and internal pulse picking functionality—all traceable through version-controlled release notes and SHA-256 checksum verification.

Applications

• Laser-induced breakdown spectroscopy (LIBS) for elemental analysis in metallurgy, geoscience, and nuclear waste characterization.
• Time-of-flight LIDAR system development and component validation under varying ambient temperatures (−35 °C to +65 °C).
• Pumping of picosecond OPOs for broadband mid-IR generation in molecular fingerprinting applications.
• Micromachining of polymers, ceramics, and thin-film solar cells where minimal heat-affected zone is critical.
• Fluorescence lifetime imaging (FLIM) excitation sources requiring sub-nanosecond jitter and high extinction ratio.
• Calibration of ultrafast photodetectors and streak cameras across visible to near-IR spectral ranges.

FAQ

Is the PYFL-KULT compatible with third-party pulse pickers or AOMs?
Yes—the laser features TTL/LVDS sync outputs and accepts external gate signals, allowing synchronization with acousto-optic modulators or electro-optic pulse selectors.
Can output pulse energy be calibrated traceably to NIST standards?
While the module itself does not include an integrated calibrated photodiode, Keopsys provides factory calibration reports referenced to NIST-traceable power meters (e.g., Ophir PD300-MS) upon request.
What cooling method is required during continuous operation?
The PYFL-KULT operates in conduction-cooled mode only; no forced air or liquid cooling is needed—thermal management is achieved via aluminum baseplate mounting to a thermally stable surface.
Does the laser support analog modulation of repetition rate or pulse energy?
Standard configuration supports digital triggering only; analog modulation capability requires optional firmware and hardware upgrade (K-AMOD kit).
Are there export restrictions applicable to this model?
As a Class 4 laser with peak power > 1 kW, the PYFL-KULT falls under EU Dual-Use Regulation (EU No 2021/821) and US EAR99 classification; export licenses may be required depending on destination and end-use.