Abstract: 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.

Abstract: An apparatus, controller, and method for polarity detection, optical insertion loss measurement, optical power measurement, fiber length measurement, and optical fiber communication is provided, configured to transmit light from a light source; adjust a signal parameter of the light; compare an output optical signal parameter pattern of a cabling-under-test with a polarity pattern template; and determine the polarity of the cabling-under-test based at least on a best-fit of the output optical signal parameter pattern to the polarity pattern template.

Abstract: 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.

Abstract: A method of wavelength identification in an optical fiber includes emitting light into the optical fiber. The light includes a data burst defining a wavelength identification code. The method also includes reading the wavelength identification code with a device. In an embodiment, the device can include an optical power meter. The method further includes automatically adjusting a wavelength of the device to the wavelength defined in the wavelength identification code. The method can further include displaying the wavelength of the light and a detected power level.

Abstract: A method of identifying and testing an optical fiber includes emitting light into the optical fiber. The light includes an identification signal and a testing signal. The method also includes reading the identification signal and the testing signal with a single device. The method further includes determining an identity of the optical fiber based on the identification signal with the single device and determining a status of the optical fiber based on the testing signal with the single device.

Abstract: 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.

Abstract: An optical test apparatus includes a collimator comprising a dual-fiber ferrule and a collimating lens. The optical test apparatus also includes an optical filter optically aligned with the collimator, a first optical fiber pigtail connected to the collimator at a first bore of the dual-fiber ferrule, a second optical fiber pigtail connected to the collimator at a second bore of the dual-fiber ferrule, and a photodetector in optical communication with the collimator. The optical test apparatus defines a reflection path from the first optical fiber pigtail to the optical filter and from the optical filter to the second optical fiber pigtail and a transmission path from the first optical fiber pigtail through the optical filter to the photodetector.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method of identifying and testing an optical fiber includes emitting light into the optical fiber. The light includes an identification signal and a testing signal. The method also includes reading the identification signal and the testing signal with a single device. The method further includes determining an identity of the optical fiber based on the identification signal with the single device and determining a status of the optical fiber based on the testing signal with the single device.

Abstract: 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.

Abstract: An optical fiber test apparatus includes an optical power meter operable to detect light at a predetermined wavelength, and a laser source operable to generate a visible laser beam. The optical fiber test apparatus further includes an optical fiber extending between a first end and a second end, and a diplexer which includes a first optical connector and is coupled to the optical power meter, the laser source, and the first end of the optical fiber. The optical fiber test apparatus further includes a second optical connector coupled to the second end of the optical fiber and including a test port. The diplexer is operable to transmit light at the predetermined wavelength from the second optical connector to the optical power meter and transmit the visible laser beam from the laser source to the second optical connector.

Abstract: 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.

Abstract: 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.

Abstract: An optical fiber test apparatus includes an optical power meter operable to detect light at a predetermined wavelength, and a laser source operable to generate a visible laser beam. The optical fiber test apparatus further includes an optical fiber extending between a first end and a second end, and a diplexer which includes a first optical connector and is coupled to the optical power meter, the laser source, and the first end of the optical fiber. The optical fiber test apparatus further includes a second optical connector coupled to the second end of the optical fiber and including a test port. The diplexer is operable to transmit light at the predetermined wavelength from the second optical connector to the optical power meter and transmit the visible laser beam from the laser source to the second optical connector.

Abstract: 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.

Abstract: An optical fiber test apparatus includes an optical power meter operable to detect light at a predetermined wavelength, and a laser source operable to generate a visible laser beam. The optical fiber test apparatus further includes an optical fiber extending between a first end and a second end, and a diplexer which includes a first optical connector and is coupled to the optical power meter, the laser source, and the first end of the optical fiber. The optical fiber test apparatus further includes a second optical connector coupled to the second end of the optical fiber and including a test port. The diplexer is operable to transmit light at the predetermined wavelength from the second optical connector to the optical power meter and transmit the visible laser beam from the laser source to the second optical connector.

Abstract: An optical fiber test apparatus includes an optical power meter operable to detect light at a predetermined wavelength, and a laser source operable to generate a visible laser beam. The optical fiber test apparatus further includes an optical connector comprising a test port, and an optical fiber extending between a first end and a second end and coupled at the second end to the optical connector. The optical fiber test apparatus further includes a coupling device, the coupling device coupled to the optical power meter, the laser source, and the first end of the optical fiber. The coupling device is operable to transmit light at the predetermined wavelength from the optical connector to the optical power meter and transmit the visible laser beam from the laser source to the optical connector.