Seppo Honkanen

Integrated optics and photonic integrated circuits

Rare-earth-doped devices

Rare-earth-doped devices II

Rare-Earth-Doped Materials and Devices III

Integrated optics devices V

Integrated optics devices IV

Silicon Photonics and Photonic Integrated Circuits IV

Ion exchange processes for fabrication of integrated optical waveguide structures into glass substrates

Maa- ja metsätalouden työvoiman määrän ja rakenteen kehitys vuosina 1980, 1985 ja 1990