The Newport LPM690-30C is a continuous wave (CW) laser diode module delivering 30 mW of stable output at 690 nm. Built on Fabry-Perot technology, it produces a circular beam and maintains <5% power stability over 8 hours, making it suited for precision optical applications demanding consistent performance.
Technical Specifications
• Wavelength: 690 nm (±10 nm tolerance)
• Output Power: 30 mW
• Power Stability: <5% over 8 hours
• Beam Profile: Circular, 1.48 × 1.48 mm (1/e²)
• Beam Divergence: <1.2 mrad (full angle)
• Spectral Width: 2 nm FWHM
• Relative Intensity Noise: <0.5%
• Operating Current: 120 mA maximum
• Supply Voltage: 3.5 to 5 VDC
• Physical Size: Ø12.7 × 50.8 mm
• Operating Temperature: 0 to 40°C
– Key Features
• Constant Optical Output Power Mode automatically compensates for temperature and focus drift
• Low noise performance ensures signal integrity in sensitive measurements
• Compact cylindrical form factor facilitates integration into optical benches and assemblies
• Manual focus adjustment via spanner wrench for application-specific beam conditioning
• Requires external 5 VDC power supply; Newport LPMS Series supplies recommended for CDRH compliance, interlock input, key enable, delayed startup, and active indicator functions
– Typical Applications
• Spectroscopy and interferometry
• Machine vision and marking systems
• Flow cytometry and tissue fluorescence imaging
• Fluorescence microscopy
• Bioanalysis and metrology
– Compatibility & Integration
The module operates via external power supply with automatic output power regulation. Focus adjustment requires care to avoid optical damage; full-power focusing or lens removal risks diode failure. Avoid thermal insulation during mounting—adequate heat dissipation is critical for reliability and lifespan. Not CE marked.
