US 12,228,767 B2
Integrated optical component having an expanded light beam
Olivier Castany, Grenoble (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed on Jun. 7, 2022, as Appl. No. 17/805,760.
Claims priority of application No. 21 06181 (FR), filed on Jun. 11, 2021.
Prior Publication US 2022/0397728 A1, Dec. 15, 2022
Int. Cl. G02B 6/12 (2006.01); G02B 6/124 (2006.01); G02B 6/30 (2006.01); G02B 6/42 (2006.01)
CPC G02B 6/12002 (2013.01) [G02B 6/12004 (2013.01); G02B 6/305 (2013.01); G02B 2006/12147 (2013.01); G02B 6/124 (2013.01); G02B 6/4214 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An integrated optical component configured to ensure a propagation of a light beam between an internal light gate and an external light gate, the light beam having an optical axis, a first surface taken transversally to the optical axis of the beam taken at the internal light gate, and a second surface taken transversally to the optical axis of the beam taken at the external light gate, such that the second surface is of strictly greater area than the first surface, the integrated optical component comprising a basic optical component comprising the internal light gate,
the basic optical component having a lower face, and an upper face, opposite the lower face,
the internal light gate being configured to emit or receive the light beam respectively divergent or convergent, along a trajectory passing through the upper face of the basic optical component, wherein
the integrated optical component further comprises a transparent layer arranged on the upper face of the basic optical component, the transparent layer having a third face, facing and parallel to the upper face of the basic optical component, the transparent layer comprising the external light gate at the third face,
the transparent layer comprises a plane mirror located at the third face and rotated facing the upper face of the basic optical component, and the basic optical component comprises a convergent mirror rotated facing the third face of the transparent layer,
the plane and convergent mirrors are arranged such that the light beam is propagated between the internal light gate and the external light gate by passing through the transparent layer by reflection on the plane mirror and by reflection on the convergent mirror, and
the internal light gate being arranged entirely below the convergent mirror and the convergent mirror being arranged below the external light gate.