Resin molded optical assembly

An optical assembly comprising:

• an optical device;
• an optical fiber coupled to said optical device;
• a first ferrule holding said optical fiber;
• a substrate carrying said optical fiber;
• and
• a plastic package having said substrate and at least a part of said ferrule are secured therein by a resin;
• wherein said ferrule protects said optical fiber, at least in an area from said substrate to outside of said plastic package.

An optical assembly comprising:

• an optical device;
• an optical fiber coupled to said optical device;
• a ferrule holding said optical fiber;
• a substrate having therein a first groove for positioning said ferrule and a cavity for receiving said optical device;
• and
• a plastic package having said substrate and at least a part of said ferrule secured therein by a resin;
• wherein said substrate is made of a silicon crystal having a (100) crystal surface, and wherein a bottom surface of said first groove is defined by a (100) crystal surface, and side surfaces of said first groove are defined by a (111) crystal surface.

An optical assembly comprising:

• an optical device;
• an optical fiber coupled to said optical device;
• a ferrule holding said optical fiber;
• a substrate having a groove therein for positioning said ferrule, said optical device being bonded to said substrate;
• and
• a plastic package having said substrate and at least a part of said ferrule secured therein by a resin;
• wherein said optical device is one selected from a group consisting of an edge emitting laser diode and an edge detection photodiode, and wherein said optical device is die-bonded to said substrate in a junction-down manner.

An optical assembly comprising:

• an optical device;
• an optical fiber coupled to said optical device;
• a ferrule holding said optical fiber;
• a lid for positioning said ferrule;
• a substrate carrying said optical device, one end of said ferrule being fixed on said substrate;
• wherein said lid and said substrate cooperate to define a cavity having said optical device and at least a part of said optical fiber located therein;
• and
• a plastic package having at least said substrate, said lid and said ferrule secured therein by a resin;
• wherein said cavity is covered with the resin.

An optical assembly comprising:

• an optical device;
• an optical fiber coupled to said optical device;
• a ferrule holding said optical fiber;
• a substrate carrying said optical device;
• means defining a cavity having therein at least said optical device and a part of said optical fiber;
• and
• a plastic package having said substrate and at least a part of said ferrule secured therein by a resin,
• wherein said cavity is covered with the resin;
• and
• wherein said ferrule protects said optical fiber, at least in an area from said substrate to outside of said plastic package.

An optical assembly comprising:

• an optical device;
• an optical fiber coupled to said optical device;
• a ferrule holding said optical fiber;
• a substrate having a groove for positioning said ferrule, said optical device being bonded to said substrate, and
• a plastic package having said substrate and at least a part of said ferrule secured therein by a resin;
• wherein said ferrule is inserted into said plastic package.