Holder element with integrated optical arrangement to offset an output light path
The present disclosure is generally directed to a holder element, also generally referred to herein as a welding element, configured to couple an optical coupling receptacle to a substrate and provide an integrated optical arrangement to redirect light received from the optical coupling receptacle along a receive light path to an output light path that is offset from the receive light path.
1. A holder element for use in an optical subassembly, the holder comprising:
a body that defines a cavity to receive and couple to at least one optical element;
a substrate receptacle defined at a first end of the body with at least one mating surface to couple to a substrate;
an input aperture at a second end of the body to receive an optical signal into the cavity along a first light path;
an output aperture disposed at the first end of the body to pass the received optical signal from the cavity along a second light path;
a mirror disposed in the cavity having at least one reflective surface, the mirror providing a light path within the cavity that extends substantially transverse between the first and second light paths such that incident wavelengths received along the first light path get launched on to the second light path; and
wherein the substrate receptacle comprises a slot to at least partially receive a substrate, wherein the slot is at least partially defined by the output aperture and the output aperture optically aligns with at least one optical component disposed on the substrate based on the substrate being disposed within the slot.
2. The holder element of claim 1 , wherein the substrate receptacle is configured to edge mount to the substrate via the slot.
3. The holder element of claim 2 , wherein the slot extends substantially transverse relative to a longitudinal axis of the body.
4. The holder element of claim 1 , wherein the input aperture comprises an optical coupling receptacle, the optical coupling receptacle having a longitudinal axis that extends concentrically with the first optical path.
5. The holder element of claim 1 , wherein the first optical path is disposed on a receive plane that extends through at least a portion of the substrate.
6. The holder element of claim 5 , wherein the second optical path extends along an output plane that extends along a surface of the substrate.
7. The holder element of claim 5 , wherein the first and second light paths extend substantially parallel with each other and have a predetermined offset distance OD 1 extending therebetween.
8. The holder element of claim 1 , further comprising a focus lens disposed within the cavity along the first light path.
9. The holder element of claim 1 , wherein the mirror comprises a second reflective surface disposed substantially parallel relative to the first reflective surface.
10. The holder element of claim 9 , wherein the first and second reflective surfaces extend at a first and second angle, respectively, relative to the first light path, and wherein the first and second angles are substantially equal.
11. An optical subassembly, the optical subassembly comprising:
a housing defining a cavity;
a substrate disposed in the cavity, the substrate having at least one mounting surface and at least one optical component mounted to the at least one mounting surface;
a holder element with a slot coupled to an end of the substrate, the holder element comprising:
a body that defines a cavity;
an input aperture at a second end of the body to receive an optical signal into the cavity along a first light path;
an output aperture disposed at the first end of the body to pass the received optical signal from the cavity along a second light path, the second light path intersecting with an input port of the at least one optical component of the substrate;
a mirror device disposed in the cavity, the mirror device providing a light path within the cavity that extends substantially transverse between the first and second light paths such that incident wavelengths received along the first light path get launched on to the second light path; and
wherein the mirror device comprises first and second reflective surfaces, wherein the first light path intersects with the first reflective surface and the second light path intersects with the second reflective surface.
12. The optical subassembly of claim 11 , wherein the body of the holder element is welded to the substrate.
13. The optical subassembly of claim 11 , wherein the first light path extends along at least one plane that extends through a portion of the substrate.
14. The optical subassembly of claim 11 , wherein the second light path extends substantially parallel with the first light path.
15. The optical subassembly of claim 11 , wherein the first and second reflective surfaces extend at first and second angles relative to the first optical path, respectively, and wherein the first and second angles are substantially equal.
16. The optical subassembly of claim 11 , wherein the holder element further comprises a focus lens disposed along the first optical path within the cavity.