Patent ID: 6922504

Claim:
An optical power device protector that protects an optical power device, the optical power device including a first connector configured to connect to a first optical fiber member to receive input light therefrom, the optical power device further including an amplification unit configured to amplify the input light to thereby obtain high-level light, and the optical power device still further including a second connector configured to connect to a second optical fiber member to thereby provide the high-level light to an external location, the optical power device protector comprising: at least two optical fiber members, wherein one of the at least two optical fiber members corresponds to the second optical fiber member; a collimator pair disposed between said at least two optical fiber members; wherein said collimator pair passes light only in a pre-determined waveband and prevents conduction of heat generated by transmission of light, and said optical fiber members with said collimator pair are attached to the outside of said optical power device in a replaceable manner, and said optical power device protector is configured to protect said optical power device from being overheated due to heat generated on said optical fiber members by way of a fiber-fuse phenomenon, by blocking the heat from passing in a direction towards said optical power device.