Patent ID: 8083419

Claim:
An optical module having an optical device that installs a semiconductor optical device therein and an optical receptacle that receives an external optical fiber to be optically coupled with said semiconductor optical device, wherein said optical receptacle comprises, a sleeve configured to receive an optical ferrule provided in an end of said optical fiber; a stub set within said sleeve in a portion close to said optical device; a holder to hold said stub directly in a portion close to said optical device, said holder being made of electrically conductive material; a bush made of electrically insulating material, said bush receiving said holder; and a shell to cover said sleeve, said bush, said holder, and said stub, said shell being made of electrically conductive material, wherein said holder is in contact with said bush in a first range along an optical axis; and said bush is in contact with said shell in a second range along said optical axis, said second range overlapping with said first range, and wherein said bush electrically isolates said holder from said shell.