Description
457nm Single Longitudinal Mode SLM Laser CW 100mW – 1000mW
Central Wavelength 457 nm
Output Optical Power ≥ 200 mW (Preferred: 300 mW)
Operating Mode Continuous Wave (CW)
Longitudinal Mode Single Longitudinal Mode (SLM), single frequency operation
Coherence Length > 10 m (Manufacturer shall provide specified or measured value)
Spatial Mode / Beam Quality TEM fundamental mode, M² < 1.1
Power Stability < 3%
Beam Diameter (at Aperture) < 1 mm
Beam Symmetry (at Aperture) > 0.90:1
Full Beam Divergence Angle < 1.5 mrad
Polarization State Linear & Vertical Polarization, Polarization Ratio > 100:1
RMS Noise (20 Hz – 20 MHz) < 1%
Peak-Peak Noise (20 Hz – 20 MHz) < 2%
Wavelength Stability (Ambient Temperature: ±2 °C, Test Duration: 8 Hours) < 1 pm
Download the datasheet .
457 nm Single Longitudinal Mode Laser Product Specification
Applications:
Scientific Research, Interferometry, Precision Optical Measurement
A Single Longitudinal Mode (SLM) laser, or single-frequency laser, emits light at exactly one fundamental resonator frequency. By supporting only one longitudinal mode and eliminating mode competition, it produces an ultra-narrow spectral linewidth (often <100 kHz) and a long coherence length. This makes SLM lasers ideal for interferometry, holography, and coherent remote sensing.