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Precisometer

SLM, narrow linewidth, coherence

TUN-443~445444 nm violet tunable single-frequency laser

444 nm

The TUN-443~445 is a 444 nm 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.

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Specifications

TUN-443~445

2 specification rows

Wavelength444 nm
Output / average power1~400 mW
Beam / notesNarrow Linewidth Violet Blue Laser

What do you need?

The full datasheet for this model is on request. Tell us the output power, linewidth and beam delivery you need, and we'll reply with the matching configuration and lead time.

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Model selection

Nearby series comparison

Compare TUN-443~445 with the closest available models in the Single-Frequency Lasers family.

Selection parameterTUN-443~445 (current)MDL-E-444FC-D-444
Wavelength444 nm444 nm444 nm
Optical power / pulse energy1~400 mW1~50 mW1~450 mW

Related single-frequency lasers

Compare the TUN-443~445 with nearby single-frequency lasers across the wavelength range.

Choosing a laser

Guides that put this laser in context

Which specifications decide the experiment, and which ones cost money without changing the result.

All guides
Laser emission spectrum, intensity noise traces, and beam quality profiles illustrating the main laser specifications
Photonics
13 min Spec lab

Laser specifications decoded

Linewidth, spectral width, RIN, M², and coherence length answer five different questions. Translate each into the units your experiment is designed in — and learn which ones not to pay for.

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Piezoelectric fiber polarization controller with fiber-squeezing elements
Photonics
9 min Poincaré lab

Fiber polarization control

Single-mode fiber does not preserve polarization. Pin the state, erase it with a scrambler, or maintain it in PM fiber — which one your measurement needs, and the response time and extinction ratio that decide it.

Open guide