| 摘要 |
<p>Provided is an optical probe capable of precise OCT measurement with low noise even when a highly dispersive subject is measured. An optical probe (20) is provided with an optical fiber (21) for transmitting light between a proximal end (21a) and a distal end (21b), an optical connector (22) connected to the optical fiber (21) at the proximal end (21a), a collective optical system (23) and deflecting optical system (24) connected to the optical fiber (21) at the distal end (11b), and a support tube (25) and jacket tube (26) surrounding the optical fiber (21) and extending along the optical fiber (21). The optical fiber (21) includes a core region (41) having a refractive index n1, a first cladding region (42) surrounding the core region and having a refractive index n2, a trench region (43) surrounding the first cladding region and having a refractive index n3, and a second cladding region (44) surrounding the trench region and having a refractive index n4. The relationship of the refractive indexes is n1 > n2 > n3 < n4.</p> |
