Patent ID: 7149388
Filing Date: 2006-12-12
Classification: G02B,G02F

Abstract:
1. A silicon based thin-film structure for an optical modulator, the thin-film structure comprising: a waveguide having a guiding region comprising a silicon-insulator-silicon thin-film structure comprising a dielectric device layer sandwiched between first and second silicon device layers, at least one of the first and second silicon device layers comprising a guiding edge that at least partially defines the guiding region; and an electrical contact structure for at least one of the first and second silicon device layers, the electrical contact structure comprising a contact portion and a connecting portion, the contact portion comprising a metal region spaced apart from the guiding region of the waveguide and the connecting portion extending from the guiding edge of the at least one of the first and second silicon device layers and electrically connecting an active region of the at least one of the first and second silicon device layers to the contact portion.