Patent ID: 7016565

Claim:
A micro-optic fiber device comprising: a counter-bore tube, which interiorly defines a through passage, wherein a first micro lens is fixed, and a step groove at an end of the trough passage with diameter larger than that of the through passage, said step groove having fixed therein an optical processing element with a diameter larger than that of the through passage; a first coupling tube, which interiorly defines a through passage wherein a first fiber pigtail is fixed; a second coupling tube, which interiorly defines a through passage wherein a second micro lens is fixed; and a third coupling tube, which interiorly defines a through passage wherein a second fiber pigtail is fixed; wherein the optical processing element is fixed in the step groove of the counter-bore tube by placing the optical processing element against the end of the through passage of the counter-bore tube and applying a bonding agent between the outer lateral periphery of the optical processing element and the inner surface of the step groove surrounding the outer lateral periphery of the optical processing element, and said micro-optic fiber device is built by coupling the counter-bore tube with the first coupling tube and with the second coupling tube, and then coupling the second coupling tube with the third coupling tube.