Abstract: The present disclosure relates to a PON power meter using multi input type AWG, including a first input part into which a first signal is input, wherein the first signal has S optical signals whose wavelengths are different from each other; a second input part into which a second signal is input, wherein the second signal has P optical signals whose wavelengths are different from each other; an AWG that distributes the input signal to M output waveguides according to wavelength band; a detection part configuring (S+P) detection channels by connecting a photodetection element to only (S+P) output waveguides of the M output waveguides of the AWG; and an output part that outputs a strength of the signal detected by the detection part.

Abstract: The present disclosure relates to a polarity detector for detecting polarity of a patch cord, that is capable of sequentially inputting an optical signal into channels of a connector of the patch cord, receiving the optical signal being output, and thereby discerning the polarity of the patch cord quickly and precisely. Particularly, the present disclosure is characterized to spectrally output the optical signal from the light source as a plurality of unit optical signals, and to selectively block or pass the spectrally output plurality of unit optical signals, by heat, and thereby effectively inputting the optical signal into each channel of the connector.

Abstract: The present disclosure relates to a polarity detector for detecting polarity of a patch cord, that is capable of sequentially inputting an optical signal into channels of a connector of the patch cord, receiving the optical signal being output, and thereby discerning the polarity of the patch cord quickly and precisely. Particularly, the present disclosure is characterized to spectrally output the optical signal from the light source as a plurality of unit optical signals, and to selectively block or pass the spectrally output plurality of unit optical signals, by heat, and thereby effectively inputting the optical signal into each channel of the connector.