Optical connection component

An optical connection component, comprising:

• (a) a bent optical fiber having a glass fiber mainly comprised of SiO2 glass, and a resin coating surrounding the glass fiber while being removed from an end of the glass fiber, wherein
• the glass fiber at least includes a core, a first cladding surrounding the core, a second cladding surrounding the first cladding, and a third cladding surrounding the second cladding,
• a relative refractive index difference Δ1 of the core with respect to the third cladding, a relative refractive index difference Δ2 of the first cladding with respect to the third cladding, and a relative refractive index difference Δ3 of the second cladding with respect to the third cladding satisfy relationships of
• Δ1>Δ2>Δ3 and Δ3<−0.5 [%],
• a product V3 of the relative refractive index difference Δ3 and a cross-sectional area S of the second cladding is less than −200 [%·μm2], and
• the end of the glass fiber includes:
• a bent portion including a region where a curvature of the bent portion is maintained at 0.4 [1/mm] or more in a state where substantially no bending stress remains, a bent shape of the bent portion is maintained in the bent portion, the curvature in the bent portion being 0.6 [1/mm] or less over an entire length of the bent portion;
• a first section continuous with the bent portion and positioned between the bent portion and the resin coating;
• and
• a second section continuous with the bent portion and positioned so that the first and the second sections sandwich the bent portion;
• and
• (b) a fiber fixing component including a holding unit holding only the second section to maintain the second section in a linear shape, the fiber fixing component being fixed to the second section via the holding unit, wherein
• in a target section where the curvature set along a longitudinal direction of the bent optical fiber is 0.4 [1/mm] or more, an absolute value of a curvature change rate dmax/ΔL is 1.5 [1/mm2] or less, the curvature change rate dmax/ΔL being defined by a maximum curvature dmax in the target section and a shortest distance ΔL from a section edge of the target section to a position where the maximum curvature dmax is obtained.