Qioptiq iFLEX-IRIS 405 nm Compact Diode Laser Module
| Brand | Qioptiq |
|---|---|
| Origin | UK |
| Model | iFLEX-IRIS-405 |
| Wavelength | 405 nm |
| Output Power | 25 mW |
| Beam Mode | TEM₀₀ (M² < 1.1) |
| Beam Diameter (at aperture) | 0.7 mm |
| Beam Divergence | Diffraction-limited |
| Polarization Ratio | >200:1 (Vertical ±2°) |
| Power Stability (8 h) | <0.5% RMS |
| Intensity Noise | <0.05% RMS (20 Hz – 20 MHz) |
| Pointing Stability | <1 µrad/°C |
| Dimensions | 70 mm × 40 mm × 38 mm |
| Delivery | Free-space or single-mode polarization-maintaining fiber-coupled output |
| Illumination Type | External illumination |
Overview
The Qioptiq iFLEX-IRIS 405 nm Compact Diode Laser Module is a high-performance, OEM-optimized continuous-wave (CW) semiconductor laser source engineered for demanding optical instrumentation applications requiring ultraviolet–visible spectral fidelity, exceptional beam coherence, and long-term operational stability. Operating at a precisely stabilized 405 nm wavelength—within the near-UV range—the module leverages advanced diode design combined with proprietary Closed-Loop Monitoring (CLM) and active thermal stabilization to deliver diffraction-limited TEM₀₀ output with M² < 1.1. Unlike standard Fabry–Pérot diode lasers, the iFLEX-IRIS incorporates monolithic cavity alignment and real-time power feedback control, enabling intrinsic suppression of mode-hopping and thermal drift. Its compact footprint (70 × 40 × 38 mm) and low mass make it suitable for integration into space-constrained platforms such as confocal microscopy scan heads, microfluidic cytometry cartridges, and portable spectroscopic sensors—without compromising radiometric integrity or pointing accuracy.
Key Features
- Stable single longitudinal and transverse mode (TEM₀₀) emission at 405 nm with M² < 1.1 and diffraction-limited divergence
- Output power of 25 mW in free-space or single-mode polarization-maintaining (PM) fiber-coupled configuration
- Active temperature regulation and CLM-based power stabilization yielding <0.5% RMS power drift over 8 hours
- Ultra-low intensity noise (<0.05% RMS, 20 Hz – 20 MHz bandwidth), critical for photon-counting and interferometric applications
- High polarization extinction ratio (>200:1) with vertical orientation tolerance of ±2°
- Exceptional pointing stability (<1 µrad/°C), minimizing alignment drift during thermal cycling
- OEM-ready mechanical and electrical interface: standardized 24 V DC input, TTL modulation capability, and RS-232/USB digital control
- Optional beam shaping optics (circularization, line generation, or top-hat profile) available per customer specification
Sample Compatibility & Compliance
The iFLEX-IRIS 405 nm laser is compatible with a broad spectrum of optically sensitive samples and detection modalities, including fluorescent dyes (e.g., DAPI, Hoechst), photoactivatable proteins (PA-GFP, Kaede), and UV-excitable quantum dots. Its narrow spectral bandwidth (<0.1 nm FWHM) and high spatial coherence ensure minimal excitation crosstalk in multicolor imaging systems. The module complies with IEC 60825-1:2014 Class 3B laser safety requirements and carries CE marking for electromagnetic compatibility (EMC Directive 2014/30/EU) and low-voltage operation (LVD Directive 2014/35/EU). For regulated environments—including clinical diagnostics, pharmaceutical QC, and GLP-compliant labs—the laser supports audit-trail-enabled firmware logging and can be integrated into systems compliant with FDA 21 CFR Part 11 when paired with validated host software.
Software & Data Management
The iFLEX-IRIS operates via Qioptiq’s iFLEX Control Suite—a cross-platform application supporting Windows, Linux, and macOS. The suite provides real-time monitoring of output power, case temperature, and diode current; enables programmable power ramping, TTL-gated pulsing (down to 10 ns rise time), and analog modulation (0–5 V). All operational parameters are timestamped and exportable in CSV or HDF5 format for traceability. When deployed in automated instrumentation (e.g., flow cytometers or plate readers), the laser integrates seamlessly with LabVIEW, Python (PyVISA), or MATLAB via SCPI command set. Firmware updates preserve calibration constants and support secure boot verification to maintain metrological continuity across device lifecycles.
Applications
- Confocal and super-resolution fluorescence microscopy requiring stable 405 nm excitation for nuclear staining and photoactivation
- Next-generation DNA sequencing platforms utilizing UV-triggered reversible terminators
- Flow cytometry systems employing violet-side scatter (VSSC) and multi-parameter UV fluorescence detection
- Dynamic light scattering (DLS) instruments where low-noise, coherent illumination improves polydispersity index resolution
- Holographic optical trapping and structured illumination microscopy (SIM) relying on precise wavefront fidelity
- Calibration sources for UV spectroradiometers and CCD/CMOS quantum efficiency characterization
FAQ
Is the iFLEX-IRIS 405 nm laser fiber-coupled by default?
No—standard configuration delivers free-space output with a 0.7 mm collimated beam. Single-mode polarization-maintaining fiber coupling (e.g., PM980 or PM460) is available as a factory-configured option.
Can output power be adjusted in real time?
Yes—via analog voltage (0–5 V) or digital commands (SCPI), enabling dynamic power scaling from 10% to 100% of rated 25 mW without mode instability.
What is the expected lifetime under continuous operation?
Rated MTTF exceeds 20,000 hours at 25°C case temperature, consistent with ISO/IEC 62304 Class B medical device reliability requirements.
Does the module support external modulation at frequencies above 1 MHz?
Yes—TTL input accepts square-wave signals up to 10 MHz; analog modulation bandwidth is DC–100 kHz with <3 dB roll-off.
Is custom wavelength selection available within the iFLEX-IRIS platform?
The IRIS series spans 375–1064 nm; 405 nm is a standard offering. Other discrete wavelengths (e.g., 445 nm, 488 nm, 640 nm) are available with identical form factor and performance specifications.
