Single Longitude Mode 532nm Laser with 1W 1000mW output power. CW lasers with long coherence length (>10s cm, single mode, for holography) and 1W of power with wavelength center at 532nm.
Download the datasheet as following ,
Wavelength (nm) 532
Output Power (W) 1
Working Mode CW
Beam Mode
Transverse TEM00
Longitude Single-longitude(Coherent length>50m)
Spectral Linewidth (nm) <10e-5
Polarization Line polarization
Polarization Ratio >100:1
Beam Quality (M2 factor) <1.2
Beam Divergence (full angle, mrad) 1.5+-0.2
Beam Diameter at Aperture (mm) 1.5+-0.2
Beam Roundness >90%
Power Stability (RMS, over 8 hours) <5%
Noise of Amplitude (RMS) <1%
Aperture Position (mm) 95
Laser Head
Dimensions (L-W-H, mm) 320 x 120 x115
Net Weight (kg) 2.5
Integrated Driver Model VD-III Series
Cooling System TECI+Water-cooled
Warm-up Time (minutes) <15
Operation Temperature (C) 18~30
Expected Lifetime (hours) >10000
Warranty Time 1 year
Single longitudinal mode lasers are ideal for any application where narrow linewidth and or precise knowledge of the laser wavelength is needed since it is the only case in which there is only one fundamental frequency component to the laser spectrum.
These modes are referred to as the longitudinal modes of the laser and are the only allowable wavelengths at which the laser can amplify and emit light. If the gain at a particular longitudinal mode is greater than the total loss in the cavity (the gain threshold), that mode will be amplified and lasing will occur.
In physics, coherence length is the propagation distance over which a coherent wave (e.g. an electromagnetic wave) maintains a specified degree of coherence. Wave interference is strong when the paths taken by all of the interfering waves differ by less than the coherence length. A wave with a longer coherence length is closer to a perfect sinusoidal wave. Coherence length is important in holography and telecommunications engineering.
Coherence length is defined as the distance over which the laser beam can travel without experiencing a phase discontinuity. This is a critical parameter in applications such as holography and interferometry where beams may be required be split with each leg going a long distance before being recombined.
Lasers with Long Coherence Lengths.
The quantum noise influence is weak (allowing for a long coherence length) when the circulating power in the laser is high, the resonator losses per round trip are low, and the round-trip time is long.
