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Fusion Splice for Aerospace Fiber Optic Cables

AS-3 Fiber Optics and Applied Photonics Committee
  • Aerospace Standard
  • AS6506A
  • Current
Published 2019-07-11 by SAE International in United States

This document defines performance standards which fiber optic cable splices must meet to be accepted for use in aerospace platforms and environments.

 

All-Fiber, Optically Controlled Optical Switch

  • Magazine Article
  • TBMG-34622
Published 2019-06-01 by Tech Briefs Media Group in United States

An optical switch is a device where information-bearing light may be directed to one of several outputs. Prior art optical switches have mainly been integrated optical waveguide structures such as titanium-diffused (Ti) waveguides in lithium-niobate (LiNbO3) or gallium-arsenide (GaAs) structures, or other compound semiconductors.

 

Single-Photon Detector for Potential Encryption and Sensing

  • Magazine Article
  • TBMG-34600
Published 2019-06-01 by Tech Briefs Media Group in United States

Light is widely used for communications, carrying phone conversations and video signals through fiber optic cables around the world in pulses composed of many photons. Single photons are the weakest signal that can be transmitted and they have a wide range of applications including implementing an encryption technique called quantum key distribution and creating high-resolution maps. Single photons of light typically have very little energy, making them difficult to detect.

 

Interface Standard, Airborne EO/IR Systems, Data

AS-1C Avionic Subsystems Committee
  • Aerospace Standard
  • AS6135A
  • Current
Published 2019-05-14 by SAE International in United States
This standard defines the data interfaces between a host aircraft (“platform”) and an Electro-Optic/Infrared (EO/IR) sensor. These data interfaces cover various types of data including: imagery, metadata, command, status, and responses (CSR), geospatial postion, time, test and maintenance, and hand-controller. This standard does not cover mechanical or electrical interfaces.
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Interface Standard, Airborne EO/IR Systems, Maintenance and Test

AS-1C Avionic Subsystems Committee
  • Aerospace Standard
  • AS6165A
  • Current
Published 2019-05-14 by SAE International in United States
This standard defines the use of data interfaces between a host platform and an electro-optic/infrared (EO/IR) system for maintenance and test (M&T) purposes. In particular, this standard defines the use of the data interfaces in order to facilitate the: a confirmation of system performance and function; b external initiation of built-in-test (BIT) functions; c performance of other diagnostic tests of system health; d downloading M&T data; e uploading software changes. This standard does not cover mechanical or electrical interfaces, nor does it define the basic platform-to-sensor communication protocols and formats. Furthermore, this standard does not address software changes that are made by the manufacturer and not accessible at the sensor interfaces. Data protocols and formats are covered by AS6135. Electrical interfaces are covered by AS6129. This standard covers the use of the interfaces defined by AS6129 and AS6135 for the purposes described herein.
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Ground Control- Using Fiber Optics to Reduce Electrical Ground Interaction

Penn State Electro-Optics Center-John Mazurowski
Published 2019-03-19 by SAE International in United States
The increase in the use of composite structures and components is revealing some contiguous consequences for the design of electrical systems: a) reduced electrical shielding and its effects on EMI compatibility, and b) the absence of electrical capacity from global electrical grounds. The first consequence can be mitigated by carefully following best practices for EMI compatibility, allowing for the weight and cost for shielding and other necessary components. The second consequence has been discovered in other industries. Supply and ground circuits must now be carefully planned and risk-analyzed because the power delivery circuits interact. Supply circuits are now more subject to voltage drops across supply and ground lines. Regulated supply voltage levels may interact; an unexpected dropout in one of several supplies can potentially affect all others. This paper has three objectives:The first is an alert that the consequence of reducing the number of high capacity ground circuits will require more planning and risk analysis with respect to the interaction of electrical supply circuits. Systematic design practices and risk mitigation activities may be required in…
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A New Route to High Sensitivity Pressure Sensors

  • Magazine Article
  • TBMG-33898
Published 2019-03-01 by Tech Briefs Media Group in United States

Since their development in the 1950s, optical fibers have been used for power transmission, communication, imaging, and sensing. They are often used in situations where other sensing techniques can fail. Because optical fibers are dielectrics and versatile, they can be used in a variety of environments from vacuum chambers to the ocean floor.

 

FIBER OPTIC TEST PROCEDURES

Airlines Electronic Engineering Committee
  • ARINC Standard
  • ARINC805-5
  • Current
Published 2019-01-28 by SAE Industry Technologies Consortia in United States

This document defines general practices for testing the physical layer of a fiber optic cable system. It is the intention of this document to outline proven practices for engineers and technicians engaged in testing and supporting fiber optic cable systems in aircraft. This document defines general practices for testing the physical layer of a fiber optic cable system. It is the intention of this document to outline proven practices for engineers and technicians engaged in testing and supporting fiber optic cable systems in aircraft.

 

FIBER OPTIC TRAINING REQUIREMENTS

Airlines Electronic Engineering Committee
  • ARINC Standard
  • ARINC807-4
  • Current
Published 2019-01-10 by SAE Industry Technologies Consortia in United States

This document is based upon the SAE ARP5602 document, A Guideline for Aerospace Platform Fiber Optic Training and Awareness Education. ARINC Report 807: Fiber Optic Training Requirements is a subset of the SAE ARP5602 document designed to meet the requirements of the commercial air transport industry. Certification to the SAE ARP5602 document fulfills the requirements of ARINC Report 807. This document defines recommended general practices for training requirements of aerospace fiber optic systems. It is the intention of this document to outline proven training practices and general standards of workmanship for technicians engaged in aerospace fiber optic manufacturing, installation, maintenance, and repair for the air transport industry. It is also recommended that management and purchasing personnel receive fundamental training to familiarize themselves with the requirements of aerospace fiber optics.

 

Researchers Map Light and Sound Wave Interactions in Optical Fibers

  • Magazine Article
  • TBMG-33567
Published 2019-01-01 by Tech Briefs Media Group in United States

Optical fibers make the Internet happen. They are fine threads of glass, as thin as a human hair, produced to transmit light. Optical fibers carry thousands of gigabits of data per second across the world and back. The same fibers also guide ultrasound waves, somewhat similar to those used in medical imaging.