OKI-SC Ultrafast Supercontinuum Laser Source
| Brand | Orient KOJI |
|---|---|
| Origin | Tianjin, China |
| Model | SC-FLIM |
| Output Range | <400 nm – 2200 nm (UV-enhanced) |
| Pulse Energy | >1 µJ per pulse |
| Core Technology | Semiconductor Pumped Femtosecond Fiber Laser + Photonic Crystal Fiber Broadening |
Overview
The OKI-SC Ultrafast Supercontinuum Laser Source is a high-stability, UV-enhanced supercontinuum generation system engineered for demanding time-resolved optical spectroscopy, fluorescence lifetime imaging microscopy (FLIM), and broadband pump-probe applications. Based on a femtosecond fiber laser architecture, it employs a semiconductor-seeded oscillator followed by nonlinear spectral broadening in dispersion-engineered photonic crystal fiber (PCF). This enables seamless spectral coverage from the deep ultraviolet (<400 nm) through visible and near-infrared up to 2200 nm—optimized for enhanced short-wavelength output intensity critical for UV-excitable fluorophores and wideband absorption measurements. Unlike conventional lamp-based or OPO-pumped sources, the OKI-SC delivers shot-to-shot amplitude stability better than ±1.5% RMS over 8 hours, with intrinsic synchronization to external triggers via TTL-compatible 10 MHz repetition rate output.
Key Features
- UV-enhanced spectral output spanning 5 mW/nm at 2000 nm under standard operating conditions
- Single-pulse energy >1 µJ at 780 nm center wavelength, scalable via optional amplifier stages for higher-energy FLIM or multiphoton excitation configurations
- Integrated monochromator module option enabling automated, software-controlled narrowband selection (FWHM <5 nm) across full spectrum with motorized grating and slit positioning
- Fiber-coupled output (FC/APC or SMA905) with collimated free-space port available; polarization-maintaining delivery fiber optional
- Passive thermal stabilization and active cavity-length feedback control ensure long-term pointing and spectral centroid stability (Δλ < 0.1 nm over 24 h)
- Compliant with IEC 60825-1:2014 Class 4 laser safety requirements; includes interlock-ready chassis, key-switch enable, and beam shutter with status monitoring
Sample Compatibility & Compliance
The OKI-SC is compatible with standard optical tables, inverted and upright microscopes (including Nikon Ti2, Zeiss LSM 900, and Leica SP8 platforms), and custom-built spectroscopic setups. Its low temporal jitter (<300 fs RMS) and precise pulse-to-pulse timing make it suitable for time-correlated single-photon counting (TCSPC) systems meeting ISO/IEC 17025 traceability requirements for lifetime calibration. The system adheres to GLP-compliant documentation standards, including factory calibration certificates traceable to NIST SRM references for spectral irradiance and pulse energy. All firmware and hardware revisions are logged with timestamped audit trails, supporting FDA 21 CFR Part 11–aligned electronic record integrity where integrated with validated acquisition software.
Software & Data Management
Control is executed via the cross-platform OKI-LaserControl Suite (Windows/macOS/Linux), providing real-time spectral monitoring, pulse energy logging, and remote parameter scripting via Python API (PyOKI). Spectral data export conforms to HDF5 format with embedded metadata (wavelength axis, integration time, ambient temperature, laser head serial number), ensuring FAIR (Findable, Accessible, Interoperable, Reusable) data principles. Optional integration with MATLAB, LabVIEW, and Igor Pro enables closed-loop experimental automation—for instance, synchronizing monochromator tuning with TCSPC histogram acquisition or spectrometer gating. Firmware updates preserve backward compatibility and include cryptographic signature verification to prevent unauthorized modification.
Applications
- Fluorescence Lifetime Imaging Microscopy (FLIM) of NAD(P)H, FAD, collagen SHG, and quantum dot probes across multispectral channels
- Broadband transient absorption spectroscopy for carrier dynamics in perovskite photovoltaics and 2D materials
- Deep-UV Raman excitation (<250 nm) for resonance enhancement in aromatic biomolecules and pharmaceutical polymorphs
- Multi-wavelength optical coherence tomography (MW-OCT) requiring simultaneous axial resolution optimization across 1300 nm and 1700 nm windows
- Calibration source for hyperspectral imagers and Fourier-transform infrared (FTIR) spectrometers requiring NIST-traceable broadband radiance
FAQ
What is the typical pulse duration and repetition rate?
The base configuration operates at 10 MHz repetition rate with <150 fs pulse width (transform-limited, sech² profile) measured after compression; optional 1–5 MHz regenerative amplifier variants are available upon request.
Can the OKI-SC be synchronized with third-party TCSPC hardware?
Yes—TTL sync output (5 V, 50 Ω) provides both master clock and programmable trigger delay (0–100 ns, 1 ps resolution) compatible with Becker & Hickl SPC-150, PicoQuant HydraHarp 400, and ID Quantique ID120 systems.
Is spectral recalibration required after transport or environmental change?
No routine recalibration is needed; the internal reference channel continuously monitors spectral centroid drift and applies real-time correction via FPGA-based lookup tables. Annual factory recalibration is recommended for metrological traceability.
Does the system support OEM integration into custom instrumentation?
Yes—full mechanical, electrical, and software integration kits are provided, including CAD models, pinout schematics, RS-232/USB-C command protocol documentation, and SDK licensing for embedded deployment.
