US 7,321,706 B2
Optical fiber coupler
Rainer Heidemann, Munich (Germany)
Assigned to TOPTICA Photonics AG, Gräfelfing (Germany)
Filed on Dec. 05, 2005, as Appl. No. 11/295,331.
Claims priority of application No. 04028837 (EP), filed on Dec. 06, 2004.
Prior Publication US 2006/0127000 A1, Jun. 15, 2006
Int. Cl. G02B 6/42 (2006.01); G02B 6/36 (2006.01)
U.S. Cl. 385—25  [385/33; 385/52; 385/93] 8 Claims
OG exemplary drawing
 
1. A fiber coupler for coupling light into or out of an optical fiber comprising:
(a) first and second base bodies;
(b) a first holder element comprising a fiber holder for holding an optical fiber;
(c) a second holder element comprising a lens holder for holding a focusing lens;
wherein one of said first and second holder elements is adjustable in an axial direction and another of said first and second holder elements is adjustable in a transverse direction;
wherein one of said first and second holder elements is connected to said first base body by four monolithic joints and two lever arms, said lever arms being pivotable around said monolithic joints and being arranged perpendicular to an optical axis as a parallelogram so that said holder element is adjustable in a linear manner substantially parallel to the optical axis; and
wherein another of said first and second holder elements is connected to said second base body by at least one elastic monolithic joint.