Endoscopic detection device for lateral spectrum detection

The invention aims to overcome the defects in the prior art. The invention provides an endoscopic detection device for lateral spectrum detection. Laser with good coherence and wide spectral propertyis generated by using super-continuum spectrum laser; after a cylindrical lens is used, the light is focused on a linear port of an optical fiber bundle; the N paths of light are transmitted to a detection port by the optical fiber bundle; high-efficiency broadband illumination is realized; N inclined surface end surface optical fibers are arranged at a probe port; the super-continuum spectrum laser is laterally emitted; according to the method, a side object is illuminated, backscattered light of the side object is received at the same time, the backscattered light is transmitted through an optical fiber and then synchronously detected through a multi-channel spectrum detection module, the time error of a system is reduced, a spectrum difference algorithm and a convolution algorithm are further used for processing spectrum data, and the relative content ratio of biomolecules is extracted.