Patent ID: 11960129
Assignee: LATELEC
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An optical emitter-receiver module comprising:
a first light source;
a first photodetector;
a multimode glass optical fiber, the first light source being configured to emit a first emitted beam at a first wavelength, the multimode glass optical fiber comprising:
a core; an optical cladding; an optical axis; a first end surface, inclined at an angle of 45° with respect to the optical axis of the multimode glass optical fiber, comprising a mirror; and a first notch, extending from an outer surface of the optical cladding to the core of the multimode glass optical fiber, comprising a first face comprising a first dichroic filter configured to reflect a first received beam of wavelength equal to a second wavelength, the second wavelength being different from the first wavelength;
the first light source being arranged relative to the mirror such that the first emitted beam, emitted by the first light source passes through the optical cladding, is reflected by the mirror and is transmitted in the multimode glass optical fiber;
the first photodetector and the first face of the first notch being positioned relative to one another such that the first received beam reflected by the first dichroic filter passes through the optical cladding and is directed towards the first photodetector; and
wherein the multimode glass optical fiber further comprises a second notch, extending from an outer surface of the optical cladding to the core of the multimode glass optical fiber, comprising a first face comprising a second dichroic filter configured to reflect a light beam at a third wavelength, the third wavelength being different from the first wavelength and from the second wavelength.