US 9,810,847 B1
Methods and systems to form optical surfaces on optical fibers
Joel Patrick Carberry, Big Flats, NY (US); Anping Liu, Horseheads, NY (US); and Barada Kanta Nayak, Painted Post, NY (US)
Assigned to Corning Optical Communications LLC, Hickory, NC (US)
Filed by CORNING OPTICAL COMMUNICATIONS LLC, Hickory, NC (US)
Filed on Nov. 18, 2014, as Appl. No. 14/543,979.
Claims priority of provisional application 61/909,505, filed on Nov. 27, 2013.
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 6/25 (2006.01); B23K 26/38 (2014.01); G02B 6/32 (2006.01); G02B 6/24 (2006.01)
CPC G02B 6/32 (2013.01) [B23K 26/38 (2013.01); G02B 6/241 (2013.01); G02B 6/25 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of forming an optical surface on an end portion of an optical fiber, comprising:
providing a ferrule having a first end, a second end, a ferrule bore extending between the first end and the second end, and a bonding agent disposed within at least a portion of the ferrule bore;
inserting an optical fiber through the ferrule bore so that an end portion of the optical fiber extends past an end face on the second end of the ferrule;
emitting at least one laser beam from at least one laser;
directing the at least one laser beam to the end face of the ferrule at a location spaced from the ferrule bore, wherein the at least one laser beam is also directed at an angle relative to the end face of the ferrule so as to be incident on the end portion of the optical fiber after reflecting off the end face of the ferrule; and
operating the at least one laser to cleave the end portion of the optical fiber, wherein the end face on the ferrule does not crack due to thermal expansion when operating the at least one laser.