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Oxxius LDI laser illuminators – multi-line light sources for microscopy (405–730 nm)

Name: Oxxius LDI laser illuminators – multi-line light sources for microscopy (405–730 nm)
Brand: Oxxius
SKU: 17950

LDI (Laser Diode Illuminator) are Oxxius multi-line laser illuminators (from the 89 North portfolio) — ready-to-use, multi-color light sources for fluorescence microscopy, combining up to 7 laser lines in the 405–730 nm range in a single fiber output, with power up to 1000 mW per line. Available in two generations: the proven LDI Gen1 and the new LDI-G2 with increased power density and stability. Ideal for confocal, spinning-disk, SIM, TIRF, PALM/STORM and optogenetics.

What are LDI laser illuminators?

The LDI illuminator delivers stable, linear and high-power multi-line illumination through a single fiber, eliminating the need for user adjustment — the system is factory-aligned and virtually maintenance-free. All sources are linear and stable from 1 % to 100 % power, making the LDI a quantitative light source for precision imaging. The Gen2 generation increases power density (smaller core diameter, single fiber), improves beam quality and stability — for the most demanding live-cell and super-resolution protocols.

Key features

• Up to 7 laser lines across the full visible band (405–730 nm)
• Up to 1000 mW per line
• Linearity 1–100 % power — quantitative, repeatable excitation
• Feedback-controlled stability <2 % CW
• No alignment and virtually maintenance-free — delivered fully aligned
• TTL and analog control (0–5 V), USB
• Two generations: Gen1 (proven) and Gen2 (highest performance)

Available models (Gen1 and Gen2)

Models available in Gen1 and Gen2 (LDI-G2) generations. 470/488, 555/577 lines configurable.

Model	Lines (nm)	Power
LDI-4 / LDI-G2-4	405 / 470 or 488 / 555 or 577 / 640	300–1000 mW
LDI-5 / LDI-G2-5	405 / 470 or 488 / 555 or 577 / 640 / 730	450–1000 mW
LDI-7 / LDI-G2-7	405 / 445 / 470 or 488 / 520 / 528 / 555 or 577 / 640	300–1000 mW
LDI-NIR / LDI-G2-NIR	405 / 445 / 488 / 520 / 555 or 577 / 640 / 730	450–1000 mW

Technical specifications

Number of lines	4 / 5 / 7 (depending on model)
Wavelength range	405–730 nm
Output power	up to 1000 mW per line
Stability	<2 % CW, feedback control, linearity 1–100 %
Control	TTL (>2.3 V), analog (0–5 V), USB
Fiber output	Gen1: bifurcated Ø400 µm; Gen2: single Ø400 µm, 0.39 NA
Alignment	not required (factory-aligned)
Safety	interlocked housing, IEC 60825 compliance
Warranty	2 years

Applications

• Confocal microscopy and spinning-disk
• Super-resolution microscopy (SIM, PALM, STORM, DNA-PAINT)
• TIRF and light-sheet microscopy
• FRAP, photoactivation / photoconversion, optogenetics
• Live-cell imaging, neurobiology, cell biology
• smFISH, spatial transcriptomics and proteomics, digital pathology

Configuration and request for quotation

We select LDI illuminators for your microscope — number and choice of lines, generation (Gen1 or Gen2), fiber sets and accessories (Breakout Box, despeckler). Contact us to select a configuration and receive a quote.