Development of integrated mode reformatting components for diffraction limited spectroscopy.
We present the results of our work on developing fully integrated devices (photonic dicers) for reformatting multimode light to a diffraction limited pseudo slit. These devices can be used to couple a seeing limited telescope point spread function to a spectrograph operating at the diffraction limit, thus potentially enabling compact, high resolution spectrographs that are free of modal noise.
Optics letters