Browse Topic: Fiber optics

Items (1,106)

21AVEP01_0501/27/2025

Two start-ups are using cameras, sensors and AI to enable more efficient vehicle flow through intersections. Every motorist has experienced the frustration of waiting at a red light when there is no traffic in sight. These days, countless household devices use sensors, cameras and connectivity to understand and respond to the world - so why do most traffic lights languish in the analog age, causing our vehicles to unnecessarily stop and idle? In a spring 2019 report, Guidehouse Insights forecast that just 7% of North America's signalized intersections would use so-called adaptive traffic-control technology in 2020. On a global level, that number was 2.3%.

Berman, Bradley

High-Efficiency Hollow-Core Fiber Optic Cable

TBMG-5216112/01/2024

Researchers have designed a six-hole micro-structure antiresonant air-core fiber (AR-HCF) with a large core diameter of 78 μm. The researchers say it is the first time that 2.79 μm high energy pulsed laser has been transmitted with good efficiency at room temperature.

High-Powered Lasers: A Call for Fiber Delivery

TBMG-5216312/01/2024

A new feature of the modern high-powered laser is the need to transmit various wavelengths through fiber optics. Fiber optics have emerged as the primary method for transmitting laser light due to its ease of setup and disconnection. Moreover, it safeguards end users from light exposure or eye contact, as the light is conveyed through an enclosed conduit.

Loss Budget Specification for Fiber Optic Links .

AS5750A (Current)

02/22/2023

This document defines a quantified means of specifying a digital fiber optic link loss budget: Between end users and system integrators Between system integrators and subsystem suppliers Between subsystem suppliers and component vendors The standard specifies methods and the margin required for categories of links.

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Optical Fiber Sensor Measures Deviations in Spine

TBMG-4694411/01/2022

USE OF FIBER OPTICS OXYGEN SENSOR FOR AIRCRAFT FUEL TANK INERTING APPLICATION

2022-26-116305/26/2022

Aircraft fuel tanks are high risk zones as the ullage volume contain highly flammable fuel-air mixture. In the past, efforts have been made by various agencies to reduce this risk by designing an inerting system which significantly reduces the flammability risks. Regulations are also in place in order to reduce the potential for flammable vapor spaces in fuel tanks for the passenger aircrafts. One of the ways to reduce this risk is to continuously supply the inert gas like nitrogen to the ullage volume so that oxygen concentration is always kept to a level well below the flammability limit. It is therefore essential to measure continuously and accurately the oxygen concentration in the ullage volume of the fuel tank during entire operation of the aircraft. Current technologies have serious limitations in terms of sensor placement inside or near fuel tank and also in terms of continuous operation. This paper studies the limitations of current technologies available on oxygen measurement

Jha, Rajesh Kumar

CABLE, FIBER OPTIC, MULTIMODE, 100/140/172 μm GRADED INDEX, NONHERMETIC, LOOSE TUBE

AS5382/2B (Current)09/21/2021

AS-3 Fiber Optics and Applied Photonics Committee

Communication Transceivers Qualification Requirements - Ethernet

J2962-3_202109 (Historical)

09/21/2021

This SAE Recommended Practice covers the requirements for ethernet physical layer (PHY) qualification. Requirements stated in this document provide a minimum standard level of performance for the PHY in the IC to which all compatible ethernet communications PHY shall be designed. When the communications chipset is an ethernet switch with an integrated automotive PHY (xBASE-T1), then the testing shall include performance for all switch PHY ports as well as each controller interface. No other features in the IC are tested or qualified as part of this SAE Recommended Practice. This assures robust serial data communication among all connected devices regardless of supplier. The goal of SAE J2962-3 is to commonize approval processes of ethernet PHYs across OEMs. The intended audience includes, but is not limited to, ethernet PHY suppliers, component release engineers, and vehicle system engineers.

Vehicle Architecture For Data Communications Standards

CABLE, FIBER OPTIC, SINGLE-MODE, 6/125/250 µm, HERMETIC COATED, TIGHT BUFFER

AS5382/3A (Current)09/21/2021

AS-3 Fiber Optics and Applied Photonics Committee

Communication Transceivers Qualification Requirements - Ethernet

J2962-3_202109-TEST-REC (Historical)09/21/2021

Vehicle Architecture For Data Communications Standards

CABLE, FIBER OPTIC, MULTI-MODE, 50/125/450 µm, GRADED INDEX, HERMETIC COATED, TIGHT BUFFER

AS5382/5B (Current)09/21/2021

AS-3 Fiber Optics and Applied Photonics Committee

CABLE, FIBER OPTIC, MULTIMODE, 100/140/172 μm GRADED INDEX, HERMETIC COATED, TIGHT BUFFER

AS5382/1B (Current)09/21/2021

AS-3 Fiber Optics and Applied Photonics Committee

CABLE, FIBER OPTIC, SINGLE-MODE, 4.6/125/450 µm, HERMETIC COATED, TIGHT BUFFER

AS5382/4B (Current)09/21/2021

AS-3 Fiber Optics and Applied Photonics Committee

CABLE, FIBER OPTIC, MULTI-MODE, 200/230/500 μm, STEP INDEX, TIGHT BUFFER

AS5382/6B (Current)09/21/2021

AS-3 Fiber Optics and Applied Photonics Committee

Conduit, Flexible, Radio Frequency Shielding

AS25064B09/06/2021

No Scope Available

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install

Facing 5G New Radio (NR) Test Challenges

TBMG-3986909/01/2021

It has been nearly five years since the International Telecommunication Union (ITU) released ITU-R M.2083-0, with a roadmap to release IMT-2020 to address the anticipated future of 5G performance that would greatly eclipse that of IMT-Advanced and then-planned 4G technology.

Communicating Via Long-Distance Lasers

TBMG-3986009/01/2021

Visible light has been used to communicate for centuries. Lanterns on ships and Morse code flashes allowed information to be conveyed at a distance. But now there’s a better way to use light to communicate over even further distances and with far more accuracy: lasers.

FERRULE, FLEXIBLE CONDUIT, RADIO FREQUENCY SHIELDING

AS25065B (Current)

08/14/2021

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install

CABLE ASSEMBLY EXTERNAL ELECTRIC POWER, AIRCRAFT 115/200 VOLT, 400 HERTZ

AS90328A (Current)08/05/2021

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install

Soft Robotic Gripper Based on Twining Plants

TBMG-3959208/01/2021

Scientists often look to nature for cues when designing robots — some robots mimic human hands while others simulate the actions of octopus arms or inchworms. Now, researchers have designed a soft robotic gripper that draws inspiration from an unusual source: pole beans. While pole beans and other twining plants use their touch-sensitive shoots to wrap themselves around supports like ropes and rods to grow upward, the new robot is designed to firmly but gently grasp objects as small as 1 millimeter in diameter.

Fusion Splice for Aerospace Fiber Optic Cables

AS6506/1 (Current)07/23/2021

This specification includes detailed requirements for a fiber optic cable splice compliant with AS6506. Every requirement of the parent standard, AS6506, which applies to this detail specification is identified below by the word “applicable.” In any case in which a requirement of this specification varies from that of the parent standard, the alternate requirement is described. If a parent standard requirement does not apply, the words used are “not applicable.”

AS-3 Fiber Optics and Applied Photonics Committee

CONNECTOR ACCESSORIES, FIBER OPTIC BACKSHELLS, SEALING PLUG, CATEGORY 7

AS85049/134A (Current)06/22/2021

AE-8C1 Connectors Committee

Fiber Optic Harsh Environment Test Methods Cross Reference Document

AIR6282A (Current)

06/10/2021

This report provides cross reference matrices detailing current test methods used in the qualification processes of fiber optic connectors, termini and cables for aerospace, telecommunications, and naval applications. The cross-reference allows the end user to select the test methods most suitable for qualifying a component, or to identify alternative test methods where a specific test is not defined in a referenced document. The report also provides information on what area each type of referenced document has been developed for.

AS-3 Fiber Optics and Applied Photonics Committee

Fiber Optic Harsh Environment Test Methods Cross Reference Document

AIR6282A-TEST-REC (Historical)06/10/2021

AS-3 Fiber Optics and Applied Photonics Committee

CONNECTOR ACCESSORIES, FIBER OPTIC BACKSHELL, 45°, SELF-LOCKING CATEGORY 3B FOR MIL-DTL-38999 SERIES III & SAE AS5590/1 CONNECTORS

AS85049/132 (Current)05/20/2021

AE-8C1 Connectors Committee

CONNECTOR ACCESSORIES, FIBER OPTIC BACKSHELL, STRAIGHT, SELF-LOCKING CATEGORY 3B FOR MIL-DTL-38999 SERIES III & SAE AS5590/1 CONNECTORS

AS85049/131 (Current)05/20/2021

AE-8C1 Connectors Committee

CONNECTOR ACCESSORIES, FIBER OPTIC BACKSHELL, 90°, SELF-LOCKING CATEGORY 3B FOR MIL-DTL-38999 SERIES III & SAE AS5590/1 CONNECTORS

AS85049/133 (Current)05/20/2021

AE-8C1 Connectors Committee

Connector Accessories, Electrical General Specification for

AS85049F (Current)

04/14/2021

This specification covers connector accessories for use with electrical connectors; see 6.8.

AE-8C1 Connectors Committee

Connector Accessories, Electrical General Specification for

AS85049F-TEST-REC (Historical)04/14/2021

This specification covers connector accessories for use with electrical connectors; see 6.8.

AE-8C1 Connectors Committee

High-Resolution Optical Reflectometry Network End-to-End Data Link Evaluation System

AIR6552/2 (Current)04/08/2021

This document establishes methods to obtain, store, and access data about the health of a fiber optic network using a commercially available high-resolution reflectometer. This document is intended for: Managers Engineers Contracting Officers Third Party Maintenance Agencies Quality Assurance

AS-3 Fiber Optics and Applied Photonics Committee

Photonics West 2021 Preview

TBMG-3863203/01/2021

After announcing that the SPIE Photonics West 2021 technical conference and exhibition would be postponed until March 6-11 at San Francisco’s Moscone Center, show organizers were forced to go virtual and take the event completely online due to the ongoing COVID-19 pandemic. Now called the Photonics West Digital Forum, the virtual event will offer a mix of live plenary talks, on-demand technical presentations and discussions, online networking and special events, as well as a digital marketplace with product demonstrations and the ability to make business connections. Like the live event, the digital forum will cover a broad range of topics and technologies from biomedical optics and biophotonics to industrial lasers, optoelectronics, microfabrication, MOEMS-MEMS, displays, and more.

High-Brightness Source of Coherent Light Spanning From the UV to THz

TBMG-3862703/01/2021

An international team of scientists reports a novel technique for a high-brightness coherent and few-cycle duration source spanning seven optical octaves from the UV to the THz.

Creating High-Precision Glass for NIR Lasers

TBMG-3863303/01/2021

Erbium (Er) doped phosphate glass exhibits many beneficial properties, which has led to an increased demand in recent years for Er:glass lasers for applications as wide-ranging as laser rangefinding, long-distance communications, dermatology, and laser-induced breakdown spectroscopy (LIBS). Erbium fiber amplifiers enable rapid global communication in the transpacific cable between Hong Kong and Los Angeles, Er:glass laser rangefinders are increasingly used in defense applications and reconnaissance, and Er:glass aesthetic lasers are gaining traction for removing scarring and even treating hair loss caused by androgenetic alopecia.

Sensitive Optical Receivers for Space

TBMG-3850302/01/2021

Communications in space demand the most sensitive receivers possible for maximum reach, while also requiring high-bit-rate operations. A concept for laser beam-based communications using an almost noiseless optical preamplifier in the receiver has been developed. The free-space optical transmission system relies on an optical amplifier that, in principle, does not add any excess noise, in contrast to all other pre-existing optical amplifiers referred to as phase-sensitive amplifiers (PSAs).

Smart Fabric Detects and Collects Space Dust

TBMG-3850902/01/2021

Researchers have developed an acoustic fabric so sensitive to vibrations that it can detect impacts from microscopic high-velocity space particles. A terrestrial application of these fabrics could be for blast detection and in the future, to act as sensitive microphones for directional gunshot detection.

Sensing Magnetic Fields

TBMG-3851102/01/2021

Innovators at NASA Armstrong developed an optical waveguide fiber Bragg grating (FBG) that is sensitive to an external magnetic field. The technology allows direct coupling of the external field to the electromagnetic (EM) wave propagating in the fiber, bypassing the need to first measure strain.

Connectors, Fiber Optic, Advanced, Circular, Modular or Rectangular, Plug and Receptacle, Harsh Environment, Removable Termini, General Specification for

AS8050 (Current)

12/29/2020

The AS8050 master document contains general information for qualification of aerospace fiber optic, circular, modular, and rectangular connectors as part of a fiber optic interconnect assembly comprising of a connector, fiber optic cable, and fiber optic terminus. The product specifications (slash sheets) contain dimensional, mechanical, and operating performance requirements for aerospace fiber optic, circular, and rectangular connectors. The product specifications (slash sheets) reference associated aerospace fiber optic termini and cables suitable for use with AS8050 connectors.

AS-3 Fiber Optics and Applied Photonics Committee

AS6021 Aerospace Fiber Optic Cable Assembly Drawing Specification

AS6021A (Current)

12/29/2020

This SAE Aerospace Standard (AS) defines the items that shall be considered when creating a fiber optic cable assembly specification and source control drawing intended for installation on aerospace platforms.

AS-3 Fiber Optics and Applied Photonics Committee

AS6021 Aerospace Fiber Optic Cable Assembly Drawing Specification

AS6021A-TEST-REC (Historical)12/29/2020

AS-3 Fiber Optics and Applied Photonics Committee

Connectors, Fiber Optic, Advanced, Circular, Modular or Rectangular, Plug and Receptacle, Harsh Environment, Removable Termini, General Specification for

AS8050-TEST-REC (Historical)12/29/2020

AS-3 Fiber Optics and Applied Photonics Committee

Network End-to-End Data Link Evaluation System Transceiver Health Monitoring

AIR6552/3 (Current)12/22/2020

This document establishes methods to obtain, store, and access data about the health of a fiber optic network using commercial sensors located in or near the transceiver. This document is intended for: Managers, Engineers, Contracting Officers, Third Party Maintenance Agencies, and Quality Assurance.

AS-3 Fiber Optics and Applied Photonics Committee

Vote for Medical Design Briefs Product of the Year 2020

TBMG-3829012/01/2020

Each month, the editors of Medical Design Briefs choose a Product of the Month that has exceptional technical merit and practical value for MDB’s design engineering readers.

New Products and Services: December 2020 Aerospace Manufacturing & Machining

TBMG-3822312/01/2020

Q&A: A New Method for 3D Printing of Tiny Gel Structures

TBMG-3819112/01/2020

Dr. Andrei Kolmakov and a team of researchers at the National Institute of Standards and Technology (NIST) have developed a method for 3D printing of tiny gel structures in liquids with electron beams — a method that has previously been limited to solids.

CONNECTOR, FIBER OPTIC, CIRCULAR, ENVIRONMENT RESISTANT, REMOVEABLE TERMINI

AS5590/1A (Current)11/30/2020

AS-3 Fiber Optics and Applied Photonics Committee

Connectors, Fiber Optic, Advanced, Circular or Rectangular, Plug and Receptacle, Environment Resistant, Removable Termini/Contacts, General Specification For

AS5590B (Current)

11/30/2020

This specification covers the performance requirements for a plug and receptacle. The connector inserts may contain multiple termini or multiple termini and electrical contacts. The connectors use removable termini, or removable termini and electrical contacts, and are capable of operating within a temperature range of −65 to +200 °C (see 1.2.1.1). These connectors are supplied under AS9100 reliability assurance program.

AS-3 Fiber Optics and Applied Photonics Committee

Connectors, Fiber Optic, Advanced, Circular or Rectangular, Plug and Receptacle, Environment Resistant, Removable Termini/Contacts, General Specification For

AS5590B-TEST-REC (Historical)11/30/2020

AS-3 Fiber Optics and Applied Photonics Committee

A Guideline for Aerospace Platform Fiber Optic Expanded Beam Interconnect Technology

AIR6112 (Current)10/22/2020

This SAE Aerospace Information Report (AIR) provides an overview of EB technology as it applies to the aerospace fiber optic industry. Applicable personnel include: Managers Engineers Technicians Logisticians Trainers/Instructors Third Party Maintenance Agencies Quality Assurance

AS-3 Fiber Optics and Applied Photonics Committee

Laser Spark Distribution and Ignition System

TBMG-3782110/01/2020

Current emission regulations relating to NOx require reciprocating engines to operate at very lean fuel/air mixtures. The excess air keeps the combusting gases cooler and limits thermal NOx development. At the same time, the lean mixture requires much more energy to be delivered to the spark plug for successful ignition. The higher energy flowing through the spark plug electrodes increases erosion to the point that the spark plugs last only hundreds of hours; they also cost more than $100 each because of the rare earth metals used to extend their life. The resulting maintenance costs are very high, especially for natural-gas-fueled energy generation engines that must run continuously for thousands of hours.

Wavy Surfaces for Better Light Control

TBMG-3781910/01/2020

The Internet owes its power to countless light pulses with which enormous amounts of data are sent around the globe via optical fibers. To steer and control these light pulses, various technologies are employed. One of the oldest and most important is the diffraction grating, which deflects light of different colors in precisely determined directions. For decades, scientists have been trying to improve the design and production of diffraction gratings to make them suitable for today's demanding applications. Researchers now have developed a new method by which more efficient and more precise diffraction gratings can be produced.

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