JPH0380335U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of a high-output optical power detector according to the present invention, FIG. 2 is a top view of the entrance surface of the optical fiber bundle used in the device of FIG. 1, and FIG. The figure and FIG. 4 are conventional examples. 10...Photodetection element, 11...Diffusion plate, 13...
...Optical fiber bundle, 131...Optical fiber, 13a
...Incidence surface, 13b...Output surface.

Claims (1)

[Scope of utility model registration request] A means for receiving the light to be measured and emitting the spread light, and a means formed by bundling a number of optical fibers having the same core diameter, and using one end of the optical fiber as an entrance surface to emit the spread light from the spread light emitting means. an optical fiber bundle formed by closely bundling the plurality of optical fibers, with the other end of the optical fiber being the output surface, arranged at equal intervals sufficiently smaller than the power distribution width of the measured light on a plane that takes in all of the optical fibers; A photodetecting element is installed on the exit surface side of the optical fiber bundle, and the photodetecting element measures only the optical power of the light to be measured that has passed through the optical fiber bundle. A high-output optical power detector characterized in that output optical power is attenuated for detection.