Patent ID: 8768111

Claim:
An apparatus for monitoring a condition in a well-bore, comprising: first and second sensors spaced along a length of an optical waveguide, wherein the first and second sensors are formed respectively within first and second enlarged outer diameter portions of the waveguide relative to an interconnecting portion of the waveguide between the sensors, and wherein the first enlarged outer diameter portion has a first conical tapered end configured to facilitate coupling with a first end of the interconnecting portion of the waveguide and the second enlarged outer diameter portion has a second conical tapered end configured to facilitate coupling with a second end of the interconnecting portion of the waveguide, wherein a first splice optically couples the interconnecting portion of the waveguide and a first waveguide tail extending from the first conical tapered end of the first enlarged outer diameter portion and a second splice optically couples the interconnecting portion of the waveguide and a second waveguide tail extending from the second conical tapered end of the second enlarged outer diameter portion; and a conduit surrounding the waveguide and spanning the length of the waveguide.