Patent ID: 9360626
Filing Date: 2016-06-07
CPC Classification: G02B

Claim Text:
1. An optical device, comprising: a first fiber Fabry-Perot resonator comprising a first fiber segment, a first reflector formed on a first end facet of the first fiber segment and a second reflector formed on a second end facet of the first fiber segment; and a second fiber Fabry-Perot resonator optically coupled to the first fiber Fabry-Perot resonator, the second fiber Fabry-Perot resonator comprising a second fiber segment oriented to be parallel to the first fiber segment and located to have a portion that spatially overlaps with part of the first fiber segment and is optically evanescently coupled via sides of the first and second fiber segments to the first fiber segment, a third reflector formed on a first end facet of the second fiber segment and a fourth reflector formed on a second end facet of the second fiber segment, wherein a position of the second fiber segment can be shifted relative to the first fiber segment to adjust an interaction length for evanescent coupling between the first and second fiber segments.