The Newport LQC690-30C is a self-contained continuous-wave laser diode module delivering 30 mW of stable output at 690 nm. The integrated design combines a Fabry-Perot laser diode, precision current source, and PID temperature controller to meet the demands of scientific and industrial applications requiring exceptional wavelength and power stability.
Technical Specifications
• Wavelength: 690 nm (±10 nm tolerance)
• Output Power: 30 mW
• Power Stability: <1% over 8 hours
• Spectral Linewidth (FWHM): 2 nm
• Beam Diameter (1/e²): 1.48 × 1.48 mm
• Beam Divergence (Full Angle): <1.2 mrad
• Beam Profile: Circular
• Maximum Operating Current: 3000 mA
• Power Supply: 4.8 to 12 VDC
• Operating Temperature Range: 0 to 40°C
• Module Dimensions: Ø38.1 × 157.5 mm
• Noise Level: <0.5%
– Key Features
• Integrated laser diode, current source, and thermal management in a single compact module
• Output power stability better than 1% over extended operation
• Low spectral linewidth (2 nm FWHM) supports interferometry and spectroscopic applications
• Circular beam profile with tight divergence enables efficient coupling to optical systems
• Wide input voltage range (4.8–12 VDC) accommodates diverse power architectures
• Operates across standard laboratory and industrial temperature environments
– Typical Applications
• Spectroscopy and analytical instrumentation
• Interferometric measurements
• Machine vision and alignment systems
• Materials marking and processing
• Flow cytometry
• Tissue fluorescence imaging
– Compatibility & Integration
The LQC690-30C integrates with Newport's LPMS Series Power Supplies (sold separately) to achieve CDRH compliance. These supplies provide interlock input, key enable, delayed start-up, and laser active indication. For wavelengths in the 635–2330 nm range, including this 690 nm module, a 5 VDC power source is specified.
