Exalos Ag

Marcus Dülk

Christian Velez

Antonino Francesco Castiglia

Marco Rossetti

Marco Malinverni

Jean Dahdah

Stefan Gloor

Nikolay Primerov

A module accommodates multiple superluminescent light emitting diodes, SLEDs,and. The SLEDs are arranged in an enclosure and output respective light beams to propagate into free space within the enclosure. The individual light beams from the SLED sources are combined into a single beam path within the enclosure using beam combiners--. Each beam combiner is realized as a planar optical element, the back side of which is arranged to receive a SLED beam and route it through the optical element to the front side where it is combined with another SLED beam that is incident on and reflected by the front side. The free-space propagating combined beam is output from the module via an optical fiber(or through a window).

Superluminescent diode module

A light source module () with integrated wavemeter components () for stabilizing the output power and wavelength of a superluminescent diode or other broadband semiconductor light source () outputting a broadband output beam. A portion of the source output beam is directed to an optical edge filter () with a cross-over wavelength lying within the bandwidth of the output beam. The edge filter () divides the light it receives into a short-wavelength component and a long-wavelength component. These two components are then directed onto respective photodetectors () that output respective signals to a wavemeter controller. The controller adjusts the drive current and/or temperature of the source to maintain the mean wavelength of the source's output beam at a set constant value according to a control parameter determined from a combination of the photodetector signals such as their ratio or the ratio between their difference and sum.

Wavelength-stabilized broadband light source

Growing community of inventors

Schlieren, Switzerland

Marcus Dülk