Abstract: A temperature detecting device for a gas turbine power plant is provided with at least one optical probe configured to detect a parameter indicative of a temperature and with at least one capsule configured to define a camera inside which the optical probe is housed.

Abstract: A system for optically monitoring a gas turbine engine includes a viewport into the gas turbine engine, and an optical connection having a first axial end and a second axial end. The first axial end is optically coupled to the viewport and configured to receive an image from the viewport, the optical connection includes a substrate having multiple hollow passages each extending from the first axial end to the second axial end, and each hollow passage includes a reflective coating disposed on an inner surface of the hollow passage to facilitate transmission of a respective portion of the image from the first axial end to the second axial end. In addition, the system includes a detector array in optical communication with the second axial end of the optical connection. The detector array includes multiple detection elements configured to receive multiple respective portions of the image from the hollow passages.