89North LDI laser diode illuminator

The LDI (laser diode illuminator) is a multiline, solid-state laser illuminator offering up to 1000 mW of output power via a multimode fibre. With feedback-controlled output stability and up to a 100:1 linear dynamic range, the LDI is a suitable light source for a wide range of applications, including spinning disk confocal microscopy, structured illumination microscopy, FRAP, photoactivation/photoconversion, optogenetics, whole animal imaging and PALM/STORM.

The product offers high output power with short exposures, fast imaging, fast activation times in optogenetics and photoactivation experiments and fast bleaching times in FRAP experiments. Six or seven laser lines are available depending on the model. Laser wavelengths are either LDI-6-405/445/470/520/528/640 (LDI-6) or 405/445/470/520/528/555/640 (LDI-7).

The 100:1 linear dynamic range gives users the ability to turn down the power when needed and to maintain stability and quantitative imaging. The product has a stability of <1% RMS (at 100% laser power) and there is no need for software-specific drivers.