A mirror bearing (100, 400, 500, 600) for an interferometer, the mirror bearing (100, 400, 500, 600) comprising: a mounting member (102, 300, 410, 502, 602) configured for rigid coupling to the interferometer at a first end (118, 312, 422, 508, 622) of the mounting member (102, 300, 410, 502, 602) and comprising: a bore (132, 310, 506) extending through the mounting member (102, 300, 410, 502, 602) along a longitudinal axis of the mounting member (102, 300, 410, 502, 602), and a drive coil receiving area (134; 304; 404; 608a, 608b) configured to hold, in a fixed position, a drive coil (302; 402; 604a, 604b) coupled to the mounting member (102, 300, 410, 502, 602) at the drive coil receiving area (134; 304; 404; 608a, 608b); the mirror bearing (100, 400, 500, 600) further comprising a mobile mirror assembly (104, 414, 512, 614) comprising: a tube (110, 412) configured to receive, through a first end of the tube (110, 412), a second end (116, 418) of the mounting member (102, 300, 410, 502, 602) disposed opposite the first end (118, 312, 422, 508, 622) of the mounting member (102, 300, 410, 502, 602), wherein the tube (110, 412) is configured for slidable movement relative to the stationary mounting member (102, 300, 410, 502, 602) along the longitudinal axis during operation of the interferometer, a mirror coupled to a second end of the tube (110, 412) opposite the first end of the tube (110, 412), and a drive magnet (114, 510, 606) coupled to the mirror and disposed within the tube (110, 412), wherein the drive magnet (114, 510, 606) is configured to be received through the second end (116, 418) of the mounting member (102, 300, 410, 502, 602) and disposed within the bore (132, 310, 506) of the mounting member (102, 300, 410, 502, 602). a mounting member (102, 300, 410, 502, 602) configured for rigid coupling to the interferometer at a first end (118, 312, 422, 508, 622) of the mounting member (102, 300, 410, 502, 602) and comprising: a bore (132, 310, 506) extending through the mounting member (102, 300, 410, 502, 602) along a longitudinal axis of the mounting member (102, 300, 410, 502, 602), and a drive coil receiving area (134; 304; 404; 608a, 608b) configured to hold, in a fixed position, a drive coil (302; 402; 604a, 604b) coupled to the mounting member (102, 300, 410, 502, 602) at the drive coil receiving area (134; 304; 404; 608a, 608b); the mirror bearing (100, 400, 500, 600) further comprising a bore (132, 310, 506) extending through the mounting member (102, 300, 410, 502, 602) along a longitudinal axis of the mounting member (102, 300, 410, 502, 602), and a drive coil receiving area (134; 304; 404; 608a, 608b) configured to hold, in a fixed position, a drive coil (302; 402; 604a, 604b) coupled to the mounting member (102, 300, 410, 502, 602) at the drive coil receiving area (134; 304; 404; 608a, 608b); the mirror bearing (100, 400, 500, 600) further comprising a mobile mirror assembly (104, 414, 512, 614) comprising: a tube (110, 412) configured to receive, through a first end of the tube (110, 412), a second end (116, 418) of the mounting member (102, 300, 410, 502, 602) disposed opposite the first end (118, 312, 422, 508, 622) of the mounting member (102, 300, 410, 502, 602), wherein the tube (110, 412) is configured for slidable movement relative to the stationary mounting member (102, 300, 410, 502, 602) along the longitudinal axis during operation of the interferometer, a mirror coupled to a second end of the tube (110, 412) opposite the first end of the tube (110, 412), and a drive magnet (114, 510, 606) coupled to the mirror and disposed within the tube (110, 412), wherein the drive magnet (114, 510, 606) is configured to be received through the second end (116, 418) of the mounting member (102, 300, 410, 502, 602) and disposed within the bore (132, 310, 506) of the mounting member (102, 300, 410, 502, 602). a tube (110, 412) configured to receive, through a first end of the tube (110, 412), a second end (116, 418) of the mounting member (102, 300, 410, 502, 602) disposed opposite the first end (118, 312, 422, 508, 622) of the mounting member (102, 300, 410, 502, 602), wherein the tube (110, 412) is configured for slidable movement relative to the stationary mounting member (102, 300, 410, 502, 602) along the longitudinal axis during operation of the interferometer, a mirror coupled to a second end of the tube (110, 412) opposite the first end of the tube (110, 412), and a drive magnet (114, 510, 606) coupled to the mirror and disposed within the tube (110, 412), wherein the drive magnet (114, 510, 606) is configured to be received through the second end (116, 418) of the mounting member (102, 300, 410, 502, 602) and disposed within the bore (132, 310, 506) of the mounting member (102, 300, 410, 502, 602).