IMRA FCPA μJewel High-Power Femtosecond Fiber Laser

Overview

The IMRA FCPA μJewel is a high-repetition-rate, high-pulse-energy ytterbium-doped femtosecond fiber laser engineered for industrial-grade reliability and scientific precision. Based on IMRA’s proprietary Chirped Pulse Amplification (CPA) architecture in all-fiber configuration, the μJewel delivers ultrashort pulses with exceptional temporal contrast, low timing jitter, and diffraction-limited spatial quality—without requiring water cooling or complex alignment. Its monolithic, polarization-maintaining fiber design ensures long-term stability under continuous operation, making it suitable for integration into OEM instrumentation, clinical devices, and automated manufacturing platforms. As a foundational tool in ultrafast photonics, the μJewel operates in the 1040-nm spectral window—optimal for nonlinear excitation in biological tissue, efficient frequency conversion, and high-threshold material processing of transparent dielectrics and semiconductors.

Key Features

• Industrial-grade robustness validated by >1 million cumulative operational hours across 700+ deployed units
• Air-cooled laser head eliminates dependency on external chillers or plumbing infrastructure
• Compliance with MIL-STD-810F (environmental durability) and IEC 60601-1 (medical electrical equipment safety)
• Integrated front-panel interface and USB/Ethernet remote control via IMRA Control Suite software
• Passive polarization maintenance with user-selectable orientation (horizontal or vertical relative to mounting baseplate)
• Thermally stable cavity design enabling <1% RMS power fluctuation over 8-hour continuous operation
• Modular architecture supporting optional harmonic generation modules (e.g., 520 nm SHG, 347 nm THG) and pulse picker integration

Sample Compatibility & Compliance

The FCPA μJewel is compatible with a broad range of optical materials and biological specimens due to its near-infrared emission, high peak intensity, and minimal thermal load per pulse. It supports direct coupling into scanning microscopes, hollow-core photonic crystal fibers, free-space parametric amplifiers, and THz generation setups. From a regulatory standpoint, the system meets electromagnetic compatibility (EMC) requirements per IEC 61326-1 and laser safety classification per IEC 60825-1 (Class 4). When integrated into medical devices, its design aligns with essential principles of ISO 13485 and FDA 21 CFR Part 820. Traceability of calibration parameters—including pulse energy, repetition rate, and beam pointing stability—is maintained through factory-certified test reports compliant with ISO/IEC 17025.

Software & Data Management

IMRA Control Suite provides deterministic, low-latency control of laser parameters including repetition rate, pulse energy (via internal AOM or external attenuator), and burst mode sequencing. The software supports scripting via Python API and integrates natively with LabVIEW, MATLAB, and EPICS environments. All parameter changes are logged with timestamp, operator ID, and system state metadata—enabling full audit trail capability required under GLP and GMP frameworks. Firmware updates preserve backward compatibility and include cryptographic signature verification to ensure integrity. Optional data export formats include HDF5 and CSV, facilitating traceable analysis in compliance with FDA 21 CFR Part 11 for electronic records and signatures.

Applications

• Two-photon fluorescence microscopy and deep-tissue imaging in neuroscience and developmental biology
• Femtosecond laser micromachining of fused silica, sapphire, and glass for microfluidic device fabrication
• Nonlinear spectroscopy including pump-probe transient absorption and coherent anti-Stokes Raman scattering (CARS)
• THz time-domain spectroscopy (THz-TDS) via optical rectification in ZnTe or DAST crystals
• High-precision ophthalmic surgery, including corneal flap creation and intrastromal lenticule extraction
• Pulsed laser deposition (PLD) of functional oxide thin films for optoelectronic and superconducting applications
• Frequency comb stabilization for optical clockwork, metrology, and absolute distance measurement
• Quantum optics experiments requiring high-fidelity entangled photon pair generation via SPDC

FAQ

What is the maximum achievable pulse energy at 1 MHz repetition rate?
The DE-1050 variant delivers >10 µJ at 1 MHz; custom configurations up to 25 µJ are available upon request.
Can the μJewel be synchronized to an external clock signal?
Yes—integrated RF input accepts TTL or sine-wave triggers with jitter <200 fs RMS for multi-laser or pump-probe synchronization.
Is the laser qualified for use inside Class II medical devices?
The μJewel complies with IEC 60601-1 and includes documentation packages supporting IEC 62304 software lifecycle management for embedded control firmware.
Does IMRA provide OEM integration support for volume deployment?
Yes—IMRA offers mechanical, thermal, and electrical interface specifications, along with application engineering consultation for turnkey subsystem integration.
How is beam pointing stability maintained during ambient temperature fluctuations?
The all-fiber CPA architecture minimizes sensitivity to thermal drift; beam pointing deviation remains <5 µrad/°C over 15–35°C operating range.