Optical rotary joint in coiled tubing applications

A system, comprising:

• a reel disposed at a wellsite surface and containing coiled tubing, the reel having a reel junction box;
• a downhole tool connected to the coiled tubing for conveyance within the wellbore via the coiled tubing, the downhole tool being in communication with a tool junction box;
• a control system disposed at the wellsite surface, the control system having a control junction box;
• a first optical conductor, a second optical conductor, a first electrical conductor, and a second electrical conductor, the first optical conductor and the first electrical conductor being disposed along the coiled tubing for conveyance within a wellbore;
• and
• a rotary joint disposed in association with the reel for transmitting optical communications and electrical communications between the control system and the downhole tool, wherein the reel junction box is in communication with the rotary joint via transmission of optical communications and electrical communications, the first optical conductor and the first electrical conductor being coupled between the reel junction box and the tool junction box to provide optical communications and electrical communications between the reel and the downhole tool, the second optical conductor and the second electrical conductor being coupled between the rotary joint and the control junction box to provide optical communications and electrical communications between the control system and the rotary joint,
• wherein the first electrical conductor and the second electrical conductor work in cooperation with the reel junction box and the rotary joint to provide an electrical return path to the control system.