公开(公告)号：US20200033261A1

公开(公告)日：2020-01-30

申请号：US16522449

申请日：2019-07-25

Applicant: STC.UNM

Inventor： Mostafa PEYSOKHAN ,  Arash MAFI

IPC: G01N21/47

Abstract: A system for measuring an absorption coefficient of a doped optical fiber may include: a laser source configured to transmit laser light at a selectable wavelength; a single-mode optical fiber including an end configured to splice to the doped optical fiber; two or more multimode fibers at a side of the doped optical fiber, spaced apart along the side of the doped optical fiber, configured to collect spontaneous emissions from the side of the doped optical fiber; and/or a photodiode or power meter connected to the two or more multimode fibers. A method for measuring an absorption coefficient of a doped optical fiber may include: collecting, from a side of the doped optical fiber, an emission spectrum using two or more multimode fibers; and/or calculating the absorption coefficient form using the emission spectrum and McCumber theory.

公开(公告)号：US20190227226A1

公开(公告)日：2019-07-25

申请号：US16254970

申请日：2019-01-23

Applicant: STC.UNM

Inventor： Behnam ABAIE ,  Arash MAFI

IPC: G02B6/02

Abstract: A hollow core optical fiber guide is provided that comprises a body for reflecting light comprising a first end, a second end, a longitudinal dimension extending between the first end and the second end, an inner sidewall, an outer sidewall, and a transverse dimension extending radially between the inner sidewall and the outer sidewall, wherein the body comprises a plurality of optically dielectric material and each of the plurality of dielectric material having a different refractive index; and a light guiding core region disposed within the body.