Patent ID: 9335224
Filing Date: 2016-05-10
CPC Classification: G01K,G02B

Claim Text:
1. An optical sensor package apparatus comprising: a first optical fiber extending from a first proximal end to a first distal end; a second optical fiber extending from a second proximal end to a second distal end; a turnaround optical fiber bent to a U-shape with a minimum bend radius of less than about two tenths of an inch (0.2) between a first turnaround end and a second turnaround end, wherein the turnaround optical fiber is substantially fully annealed and of substantially uniform thickness contiguous with the first and second optical fibers and throughout the U-shape; and first and second fused splice junctions joining the respective first and second turnaround ends to the respective first and second proximal ends so as to optically connect the first and second optical fibers via the turnaround optical fiber.