Monolithic Assembly of Miniature Reflective Cyclical Spatial Heterodyne Spectrometer Interferometry Systems

A monolithic reflective spatial heterodyne spectrometer (SHS) interferometer system comprising:

• a monolithic supporting structure formed from a single piece of a single material forming a body with a plurality of planar faces and a plurality of channels, wherein the plurality of channels forms an optical path from an incoming light opening to an outgoing light opening;
• reflective SHS core optics comprising a symmetric grating, a flat mirror, and a roof mirror,
• wherein the symmetric grating is affixed to a face of the monolithic supporting structure such that the symmetric grating splits an incoming light into two diffracted beams traveling in different, angularly offset directions,
• wherein the flat mirror is affixed to a face of the monolithic supporting structure at a first angle in relation to the symmetric grating,
• wherein the roof mirror is affixed to a face of the monolithic supporting structure at a second angle in relation to the symmetric grating, and
• wherein the flat mirror and the roof mirror are disposed such that the flat mirror and the roof mirror reflect the diffracted beams in a cyclical common-path configuration such that the diffracted beams diffract again off the symmetric grating to produce a localized fringe pattern;
• and
• incoming light optics affixed to a face of the monolithic supporting structure, wherein the incoming light optics redirect the light entering the incoming light opening through the optical path formed by the plurality of channels to the SHS core optics.

A monolithic reflective spatial heterodyne spectrometer (SHS) interferometer system comprising:

• a monolithic supporting structure formed from a single piece of a single material forming a body with a plurality of planar faces and a plurality of channels, wherein the plurality of channels forms an optical path from an incoming light opening to an outgoing light opening;
• reflective SHS core optics comprising a symmetric grating, a flat mirror, and a roof mirror,
• wherein the symmetric grating is affixed to a face of the monolithic supporting structure such that the symmetric grating splits an incoming light into two diffracted beams traveling in different, angularly offset directions,
• wherein the flat mirror is affixed to a face of the monolithic supporting structure at a first angle in relation to the symmetric grating,
• wherein the roof mirror is affixed to a face of the monolithic supporting structure at a second angle in relation to the symmetric grating, and
• wherein the flat mirror and the roof mirror are disposed such that the flat mirror and the roof mirror reflect the diffracted beams in a cyclical common-path configuration such that the diffracted beams diffract again off the symmetric grating to produce a localized fringe pattern;
• and
• outgoing light optics affixed to a face of the monolithic supporting structure, wherein the outgoing light optics redirect the light exiting the SHS core optics through the optical path formed by the plurality of channels to the outgoing light opening.