The Newport LPM635-03C is a compact continuous wave laser diode module delivering 3 mW of stable red light at 635 nm. Built-in drive electronics and thermal management enable constant optical output power operation, automatically compensating for temperature and focus variations. The module’s circular beam (1.47 × 1.47 mm at 1/e²) and sub-1.2 mrad divergence suit precision optical applications requiring minimal spatial footprint and excellent beam quality. Operating from 3.5 to 5 VDC, it maintains power stability better than 5% over 8 hours with RMS noise under 0.5%. The design integrates straightforwardly into spectroscopy, machine vision, flow cytometry, and industrial marking systems where reliable, precise red light sources are essential.
Technical Specifications
• Wavelength: 635 nm (±10 nm center tolerance)
• Output Power: 3 mW
• Power Stability: <5% over 8 hours
• RMS Noise Power: <0.5% rms
• Linewidth: 2 nm
• Beam Diameter (1/e²): 1.47 × 1.47 mm
• Beam Divergence (full angle): <1.2 mrad
• Beam Shape: Circular
• Maximum Operating Current: 120 mA
• Power Input: 3.5 to 5 VDC
• Operating Temperature Range: 0 to 40°C
• Physical Dimensions: Ø12.7 × 50.8 mm
– Key Features
• Constant optical output power mode maintains stable light delivery across temperature variations
• Low RMS noise (<0.5%) ensures signal clarity in demanding measurement applications
• Integrated thermal management components optimize diode lifespan and performance stability
• Compact form factor (Ø12.7 mm) simplifies integration into existing optical benches and instrumentation
• Metal mounting fixture recommended for ambient temperatures exceeding 25°C to maximize heat dissipation
– Typical Applications
• Spectroscopy and interferometry
• Machine vision and optical marking systems
• Flow cytometry and tissue fluorescence analysis
• Scientific research and laboratory instrumentation
• Industrial manufacturing and automotive applications
– Compatibility & Integration
External power supply required. Newport LPMS Series Power Supplies (sold separately) provide CDRH compliance, interlock input, key enable switch, delayed start-up, and laser active indication. Do not adjust focus at full power or remove lens; doing so risks excessive drive current and damaging reflections.
