NewOpto 473-10-100 Pulsed Diode-Pumped Solid-State (DPSS) Laser
| Brand | NewOpto |
|---|---|
| Origin | USA |
| Model | 473-10-100 |
| Wavelength | 473 nm |
| Pulse Energy | 10 µJ |
| Pulse Width | 2.5 ns |
| Repetition Rate | 100 Hz |
| Spectral Bandwidth | 0.2 nm |
| Output Type | Q-switched, TEM₀₀ |
| Cooling | Air-cooled |
| Beam Diameter (1/e²) | ~0.8 mm |
| Beam Divergence (full angle) | <1.5 mrad |
| Polarization | Linear, >100:1 |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Compliance | CE, RoHS, FDA 21 CFR Part 1040.10 (Laser Product Safety) |
Overview
The NewOpto 473-10-100 is a compact, air-cooled, Q-switched diode-pumped solid-state (DPSS) pulsed laser engineered for precision excitation in time-resolved fluorescence spectroscopy, nanoparticle characterization, and biomedical seed-source applications. Operating at a fundamental wavelength of 473 nm—generated via intracavity frequency doubling of a 946 nm Nd:YAG or Nd:YVO₄ gain medium—the system delivers stable, transform-limited nanosecond pulses with high temporal coherence and narrow spectral bandwidth (≤0.2 nm FWHM). Its fixed 100 Hz repetition rate and consistent 2.5 ns pulse width enable reliable synchronization with gated detection systems such as ICCD cameras, TCSPC modules, and streak cameras. Designed for integration into OEM optical platforms and laboratory-grade instrumentation, the 473-10-100 adheres to international laser safety standards (IEC 60825-1:2014, FDA 21 CFR Part 1040.10) and features interlock-ready TTL-compatible trigger input for external timing control.
Key Features
- Stable 473 nm output derived from intracavity SHG of 946 nm DPSS architecture—no external nonlinear crystal alignment required
- 10 µJ pulse energy with ≤2.5 ns full-width-at-half-maximum (FWHM) duration, enabling high peak power (>4 kW) for nonlinear excitation
- Narrow spectral bandwidth (≤0.2 nm) supports selective excitation of fluorophores with overlapping absorption bands (e.g., BODIPY derivatives, quantum dots)
- TEM₀₀ spatial mode with M² < 1.2 ensures diffraction-limited focusing for confocal microscopy and microfluidic cytometry setups
- Integrated thermoelectric cooler (TEC) and feedback-stabilized pump diode current ensure <±0.5% pulse energy stability over 8-hour continuous operation
- Compact OEM housing (120 × 80 × 45 mm) with SMA905 fiber-coupling option and standardized 3-pin LEMO sync I/O interface
- Compliant with ISO 13406-2 for beam safety classification; Class IV laser product with integrated key switch and emission indicator
Sample Compatibility & Compliance
The 473-10-100 is routinely deployed in GLP-compliant analytical workflows requiring traceable, repeatable excitation sources—including ASTM E2877-22 (fluorescence lifetime reference standards), ISO 17025-accredited particle sizing labs, and USP photometric assay validation protocols. Its fixed repetition rate and pulse-to-pulse jitter <100 ps (rms) meet timing fidelity requirements for fluorescence correlation spectroscopy (FCS) and time-gated Raman detection. The laser’s spectral purity enables unambiguous discrimination between autofluorescence and target dye signals in tissue imaging and flow cytometry. All units ship with NIST-traceable calibration certificate for wavelength and pulse energy, and are pre-qualified for use in FDA-regulated biopharmaceutical development environments under 21 CFR Part 11 data integrity guidelines when paired with compliant acquisition software.
Software & Data Management
No proprietary GUI is bundled; the 473-10-100 operates as a hardware-level trigger-synchronized source compatible with industry-standard DAQ ecosystems including National Instruments LabVIEW, MATLAB Data Acquisition Toolbox, and Python-based PyVISA frameworks. Pulse timing metadata (TTL sync edge timestamps) can be logged alongside detector signals for post-acquisition cross-correlation analysis. For audit-ready environments, integration with electronic lab notebooks (ELNs) such as LabArchives or IDBS E-WorkBook supports automated attachment of laser operational logs (including runtime hours, thermal sensor readings, and interlock status) to experimental records. Firmware updates—delivered via USB-C—maintain backward compatibility and include enhanced thermal derating algorithms for extended ambient temperature operation (15–35 °C).
Applications
- Time-resolved fluorescence lifetime imaging (FLIM) in live-cell assays using 473 nm-excitable dyes (e.g., Alexa Fluor 488, CF488A)
- Seed source for optical parametric oscillators (OPOs) targeting visible-to-NIR tunable output
- Stimulated emission depletion (STED) microscopy pre-amplification stages
- Single-particle tracking and plasmonic nanoparticle scattering studies
- Calibration of spectroradiometers and CCD quantum efficiency mapping systems
- OEM integration into portable Raman spectrometers and handheld bio-threat detectors
FAQ
Is the 473-10-100 suitable for continuous-wave (CW) operation?
No—this is a Q-switched pulsed laser only. CW variants at 473 nm are available under separate model numbers (e.g., 473-CW-50mW) but differ fundamentally in thermal management and cavity design.
Can pulse repetition rate be adjusted beyond 100 Hz?
The 473-10-100 is factory-set to 100 Hz. Custom rep-rate versions (e.g., 1–10 kHz) are available under OEM agreement with revised thermal and driver specifications.
What beam delivery options are supported?
Standard free-space collimated output; optional fiber coupling (400 µm core, NA 0.22) with FC/PC termination and integrated isolator is available upon request.
Does the unit include a shutter or beam dump?
No—mechanical or acousto-optic shutters must be added externally per application safety requirements. A compatible motorized shutter (e.g., Thorlabs SH1) can be triggered via the same TTL input.
How is laser alignment maintained during thermal cycling?
The monolithic cavity design incorporates low-CTE Invar mounts and stress-relieved crystal bonding to limit pointing drift to <5 µrad/°C over the specified operating range.
