▎ 摘　　要

NOVELTY - The probe has a vacuum encapsulating tube sleeved at the outer side of the phase-shifting Bragg grating, where the phase-shifting Bragg grating is encapsulated in vacuum. The end surface of the phase-shifting Bragg grating is exposed out of the vacuum encapsulating tube. The phase-shift Bragg grating is provided with a single-mode optical fiber, a Bragg grating, an optical micro-cavity and a resonance thin film. The single-mode optical fiber is provided with a first end surface and a second end surface. The resonant film is provided with a graphene film, a nano gold film, a fixed area, a resonant area and mutliple suspension areas. USE - Optical fiber thermal radiation probe. ADVANTAGE - The optical fiber thermal radiation probe has simple structure, high resolution, high bandwidth, high sensitivity and long service life. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a vacuum packaging method for the optical fiber thermal radiation probe; (2) a thermal radiation detection method. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of an optical fiber thermal radiation probe. 10Optical fiber thermal radiation probe 101Optical fiber 102Optical fiber 103Vacuum encapsulating tube 104Fused single-mode optical fiber 106Optical micro-cavity 107Resonance film 108Core 110Deionized water alkene film 111Nano-gold film 112Cavity wall