Power stability, linewidth, beam quality

MRL-730(FC)730 nm red CW laser

730 nm

The MRL-730(FC) is a 730 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. Continuous-wave operation provides a sustained beam for experiments that need steady illumination.

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Specifications

MRL-730(FC)

2 specification rows

Wavelength	730 nm
Output / average power	1~1200 mW
Beam / notes	730 nm Red Diode Laser

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Model selection

Nearby series comparison

Compare MRL-730(FC) with the closest available models in the CW Lasers family.

Selection parameter	MRL-730(FC) (current)	FC-730	MDL-C-730
Wavelength	730 nm	730 nm	730 nm
Optical power / pulse energy	1~1200 mW	1~3 W	1~10 mW

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Choosing a laser

Guides that put this laser in context

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

Laser emission spectrum, intensity noise traces, and beam quality profiles illustrating the main laser specifications

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.

Low-noise laser head and controller of the type specified for optical trapping

Optical trapping

16 min 2 simulations

Choosing a laser for optical tweezers

Why wavelength is decided by photodamage, focal heating, and detector bandwidth rather than trapping force — and what laser noise costs you in piconewtons.

Fluorescently labeled cells in a sharp confocal focal plane

Confocal microscopy

14 min Design lab

Designing a confocal fluorescence excitation system

Connect fluorophores, pinhole size, Airy units, spatial sampling, scan timing, modulation, and power after the fiber in one practical design workflow.