Patent ID: 9735543
Date: 2017-08-15
CPC Classifications: G02B,H01S

Claim:
1. An apparatus comprising: an optical fiber that comprises a core; a first reflector deposited at an end of the optical fiber; an optical cavity material deposited on a surface of a second reflector; and a third reflector deposited on an optical cavity surface of the optical cavity material that is opposite to the surface of the second reflector, wherein the end of the optical fiber is proximate to the optical cavity material, and the end of the optical fiber is closer to the optical cavity material than a second end of the optical fiber is, wherein the first reflector is configured to be placed into optical contact with the optical cavity surface, wherein the first reflector and the third reflector form a combined reflector when the first reflector and the third reflector are in optical contact, and wherein a combined spectral reflectivity of the first reflector and the third reflector in optical contact is same as spectral reflectivity of the second reflector.