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Power stability, linewidth, beam quality

MLL-III-457457 nm blue CW laser

457 nm

The MLL-III-457 is a 457 nm continuous-wave direct diode laser. Electrical current creates optical gain in a semiconductor junction, and the diode generates the laser light directly. Optical feedback selects the oscillating modes, while drive current and junction temperature affect output power and wavelength. The TTL and analog modulation options control different things: TTL gates the beam on and off, while analog control varies its intensity. Modulation bandwidth sets how quickly the source can follow a changing command.

Specifications

MLL-III-457

15 specification rows

Output / average power1-1000 mW
Beam / notesSeries: MLL-III-457
Operating modeCW
Power stability (rms, 4 hours ± 3°C)<2%, <1%, <0.5%
Beam divergence, full angle (mrad)<2.1×1.6 / <2.5×0.2
Warm-up time (minutes)<5
Cooled methodConduction
Operating temperature (°C)10-35
Power supply (100-240VAC)PSU-III-FDA/PSU-III-LED/PSU-A-D/PSU-III-OEM
Expected lifetime (hours)>10000
Central wavelength (nm)457±5
Transverse modeMultimode
Noise of amplitude (rms, 20Hz-20MHz)<1%, <0.5%
Beam height from base plate (mm)24.8
Modulation optionDC-1kHz, 1kHz-10kHz, 10kHz-30kHz, 30kHz-100kHz optional; TTL and Analog optional

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Model selection

Nearby series comparison

Compare MLL-III-457 with the closest available models in the CW Lasers family.

Selection parameterMLL-III-457 (current)MSL-R-457Low Noise
Wavelength457 nm457 nm457 nm
Optical power / pulse energy1-1000 mWWater cooled350-1000 mW
Operating mode / pulse widthCWCW—
Beam qualityMultimode<1.2—