Innolume superluminescent diode (SLD) – broadband 830–1250 nm

The Superluminescent Diode (SLD) from Innolume is a semiconductor source generating amplified spontaneous emission (ASE) over a wide spectral range under forward bias. Unlike a laser, an SLD has a broad optical spectrum and low coherence. Thanks to proprietary quantum-dot technology, Innolume SLD diodes combine high power (up to 250 mW) with a broad spectrum of over 100 nm in the 830–1250 nm range.

A superluminescent diode is essentially similar to a laser diode and operates based on an electrically pumped pn junction. When forward-biased, the junction becomes optically active and generates amplified spontaneous emission (ASE) over a broad wavelength spectrum. SLDs are designed for high single-pass amplification of light along the waveguide but – unlike lasers – lack the feedback necessary for lasing action. Feedback suppression is achieved through an angled waveguide and anti-reflection coatings (<0.001% reflection), which significantly reduces spectral ripple. High spatial coherence enables efficient coupling into single-mode fibers.

High output power: optical power exceeding 250 mW.
Broad spectrum: selected Innolume SLD diodes with a spectral width of over 100 nm.
Feedback suppression: angled waveguide and anti-reflection coatings (<0.001% reflection) limiting spectral ripple.
Low ASE ripple: ultra-low ripple (RMS on the order of hundredths of a dB) and strong linear polarization.
High reliability: individual burn-in, thermal cycling, proprietary mirror coating technology.
Housing options: 14-pin module (PM/HI fiber, loose tube, photodiode), chip on submount, on a heatsink (e.g. C-Mount) or in a TO package.
Configuration: SLD diodes with a specified wavelength and spectral width on customer request.

• Optical coherence tomography (OCT) and biomedical imaging
• Medical diagnostics and tissue scanning
• Fiber-optic sensors (low-coherence interferometry)
• Spectroscopy
• Measurement equipment and instrumentation
• Parameter measurements in optical systems
• Datacom and industrial applications

Innolume superluminescent diodes (SLD) are configured individually: selection of wavelength (830–1250 nm), spectral width, output power, fiber type (PM/HI) and housing (14-pin module, submount, heatsink/C-Mount, TO-can). Contact us for a datasheet and an offer matched to your application. Ask for a quote.