Patent ID: 8644654
Filing Date: 2014-02-04
Classification: G02B,H01L

Abstract:
1. An optical coupler module for converting and transmitting an electrical signal or an optical signal, the optical coupler module comprising: a semiconductor substrate having a first surface and a second surface opposite to the first surface; a first film and a second film formed on the first surface and the second surface, respectively; an electrical transmission unit formed on the first film or the first surface for transmitting the electrical signal; at least one signal conversion unit mounted on and electrically connected to the electrical transmission unit, for converting the electrical signal into a corresponding optical signal or converting the optical signal into a corresponding electrical signal; and a first optical waveguide structure formed on the second film and having a reflector at a first end and a waveguide body, the position of the reflector corresponding to the signal conversion unit, and the waveguide body of the first optical waveguide structure being made of silicon and having a V-shaped cross section along a lengthwise direction thereof, wherein the corresponding optical signal sequentially passes the first film, the semiconductor substrate and the second film and enters the first optical waveguide structure so that the corresponding optical signal is reflected by the reflector and transmitted in the waveguide body to a second end of the first optical waveguide structure; or the optical signal is transmitted in the waveguide body from the second end of the first optical waveguide structure and reflected by the reflector, and the optical signal sequentially passes the second film, the semiconductor substrate and the first film to reach the signal conversion unit to be converted into the corresponding electrical signal.