Afl Telecommunications Lcc

The Brigham and Women's Hospital, Inc.

Bin Liu

Scott Prescott

Dale Eddy

Shawn P Collins

Xiujiang Huang

Magdy Sadek

Ehsan Azimi

Michael Scholten

Mark Brezinski

Gaurav Girish

Dane Krampitz

An optical power meter unit includes a transmitting/receiving port configured to connect to a fiber under test. The optical power meter unit also includes a light source and an optical power meter. The optical power meter unit further includes an optical fiber extending between the transmitting/receiving port and the optical power meter. The optical fiber has a core size greater than a core size of the fiber under test.

Large core apparatus for measuring optical power in multifiber cables

Optical fiber adapters and connectors are provided. An optical fiber adapter includes an adapter body, the adapter body extending along a longitudinal axis between a first end and a second end and comprising a first adapter portion which includes the first end and a second adapter portion which includes the second end. Each of the first adapter portion and the second adapter portion is one of a male adapter portion or a female adapter portion. The optical fiber adapter further includes a ferrule disposed within the adapter body, the ferrule extending along the longitudinal axis between a first end and a second end, and a thin-film filter provided on one of the first end or the second end of the ferrule, wherein the thin-film filter limits the wavelengths of light transmitted therethrough to within a predetermined wavelength range.

Optical fiber adapters and connectors having wavelength filtering components

Encircled flux compliant test apparatus are provided. A test apparatus includes an optical connector, and a light source, the light source operable to emit encircled flux compliant light. The test apparatus further includes a first collimator, and a beam splitter optically aligned with the first collimator. The test apparatus further includes a first optical fiber pigtail connected to the light source, and a second optical fiber pigtail connected between the optical connector and the first collimator. A first portion of the light emitted by the light source is transmitted from the first optical fiber pigtail by the beam splitter and first collimator to the second optical fiber pigtail, and from the second optical fiber pigtail to the optical connector.

Encircled flux compliant test apparatus

A fiber optic interface includes a first fiber optic connector and a second fiber optic connector. The first fiber optic connector has a ferrule extending from a distal end to a proximal end. The ferrule includes a contact interface defined at the proximal end of the ferrule. A first optical fiber extends within the ferrule and terminates at a first fiber end. The first fiber end is spaced apart from the contact interface towards the distal end of the ferrule by a distance of at least five microns. The second fiber optic connector includes a second optical fiber extending within the second fiber optic connector and terminating at a second fiber end. The ferrule of the first fiber optic connector includes an end face which faces the second fiber optic connector when mated and consists of a single face.

Fiber optic connectors and interfaces

A method for calibrating an OLTS includes calibrating a first optical power meter of the OLTS using a stabilized light source. The method further includes calibrating a second optical power meter of the OLTS using the stabilized light source. The method further includes setting a power of an internal light source using the calibrated first optical power meter. A calibration cable is connected to a first test port and a second test port during setting of the power level, and a connection of the calibration cord to the second test port is maintained between calibrating of the second optical power meter and setting of the power level.

Methods for calibrating OLTS and determining optical loss

Characterizing a first OLTS includes connecting a first test cable directly to a second power meter of the first OLTS, connecting the first test cable to a second test cable, and connecting the second test cable directly to a connection port of a second OLTS. The method also includes determining a first characterization power of the first OLTS by measuring an optical power of light transmitted from a light source of the second OLTS with the second power meter of the first OLTS. The method further includes disconnecting a first test cable from the second power meter of the first OLTS, connecting the first test cable directly to a connection port of the first OLTS, and determining a second characterization power of the first OLTS by measuring an optical power of light transmitted from the light source of the second OLTS with the first power meter of the first OLTS.

Methods for characterizing an optical loss test set and determining optical loss

An optical connection apparatus for a fiber optic connector is provided. The fiber optic connector has at least one optical fiber extending therethrough and terminating at a fiber end. The apparatus includes a photodetector, the photodetector including a photosensitive area having a first width along a first axis. The apparatus further includes an optical converging lens spaced from the photosensitive area along a second axis perpendicular to the first axis, the lens including an aperture having a second width along the first axis. A first distance is defined along the second axis between the photosensitive area and the lens. The apparatus further includes a body defining a slot for insertion of the fiber optic connector. A second distance is defined from the lens, the second distance opposite the first distance relative to the lens.

Optical connection apparatus and assemblies

Systems and methods for enhancing spectral domain optical coherence tomography (OCT] are provided. In particular, a system and method for calibration of spectral interference signals using an acquired calibration signal are provided. The calibration signal may be logarithmically amplified to further improve the accuracy of the calibration. From the calibration signal, a series of more accurate calibration data are calculated. An acquired spectral interference signal is calibrated using these calibration data. Moreover, systems that include logarithmic amplification of the spectral interference signal and variable band-pass filtering of the spectral interference signal are provided. Such systems increase the dynamic range and visualization capabilities relative to conventional spectral domain OCT systems.

Growing community of inventors

Chestnut Hill, MA, United States of America

Bin Liu