OCT PROBE

There is provided an OCT probe, comprising: a flexible tube; an optical fiber that transmits object light and is supported in the flexible tube to be able to freely rotate about an axis of the optical fiber; an objective optical system that is fixed to a tip of the optical fiber and includes a condensing optical system which condenses the object light emerging from the optical fiber, and a deflection optical element which irradiates a subject with the object light by deflecting the condensed object light; and a barycenter adjustment member that is fixed to the objective optical system and causes a combined barycenter of the objective optical system and the barycenter adjustment member to be situated on the axis of the optical fiber.