Optical, measuring, signaling and checking apparatus and instruments in the nature of optical telecommunication hardware, namely, [ optical filter for wavelength division multiplexing, optical switches, fiber optic components, namely, fiber Bragg gratings for optical processing, ] fiber lasers that act as optical sources in optical telecommunication systems [ ; optical measuring, signaling and checking apparatus and instruments, namely, optical light guides, namely, waveguides in the optical ...

optical, measuring, signaling and checking apparatus and instruments in the nature of optical telecommunication hardware, namely optical filter for wavelength division multiplexing, optical switches, fiber optic components, namely fiber Bragg gratings for optical processing, fiber lasers that act as optical sources in optical telecommunication systems; optical measuring, signaling and checking apparatus and instruments, namely optical light guides, namely waveguides in the optical domain, opt...

optical, measuring, signaling and checking apparatus and instruments in the nature of optical telecommunication hardware, namely optical filter for wavelength division multiplexing, optical switches, fiber optic components, namely fiber Bragg gratings for optical processing, fiber lasers that act as optical sources in optical telecommunication systems; optical measuring, signaling and checking apparatus and instruments, namely optical light guides, namely waveguides in the optical domain, opt...

optical, measuring, signaling and checking apparatus and instruments in the nature of optical telecommunication hardware, namely optical filter for wavelength division multiplexing, optical switches, fiber optic components, namely fiber Bragg gratings for optical processing, fiber lasers that act as optical sources in optical telecommunication systems; optical measuring, signaling and checking apparatus and instruments, namely optical light guides, namely waveguides in the optical domain, opt...

Optical, measuring, signaling and checking apparatus and instruments in the nature of optical light sources based on nonlinear optical media and optical telecommunications hardware, namely, optical filters for wavelength division multiplexing and optical switches; fibre optic components, namely, fibre Bragg gratings for optical processing; fibre lasers that act as optical sources in optical telecommunication systems; optical measuring, signalling and checking apparatus and instruments in the ...