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Monolithic photonic integrated circuits (PICs) have a long history reaching back more than 40 years. During that time, and particularly in the past 15 years, the technology has matured and the application space grown to span sophisticated tunable diode lasers, 40 Gb/s electrical-to-optical signal converters with complex data formats, wavelength multiplexors and routers, as well as RF and other sensors...
This work reports a new optical platform that directly integrates optical fiber upon a planar substrate. The fabrication methodology uses flame hydrolysis deposition to form an optically dynamic as well as mechanically strong composite. The resulting platform is conducive to planar fabrication techniques enabling MEMS microstucturing; mechanically continuous on-chip-off-chip interconnects, removing...
An integrated tunable MSM PD based on Indium Tin Oxide (ITO) that is fabricated on Si and InP. Tuning is achieved by thermally controlling the bandgap of the semiconductor using a Nickel Chromium (NiCr) microheater.
Substrate-transferred crystalline coatings represent an entirely new concept in high-performance optical coatings. This technology was originally developed as a solution to the long-standing thermal noise limitation found in ultrastable optical interferometers, impacting cavity-stabilized laser systems for precision spectroscopy and optical atomic clocks, as well as interferometric gravitational wave...
Free-space optical networks have serious block erasures due to atmospheric turbulence and require an entirely new network architecture from Layer 1 to Layer 4 for big data flows.
We presented a reconfigurable bi-directional WDM optical switch matrix and its potential role in a cross-cube architecture. The presented optical switch matrices have shown extinction ratios greater than 40 dB, propagation losses of less than 1 dB/cm and reconfigurations times of less than 100 ns with a footprint of less than 0.3 cm2.
We proposed to mitigate the effect of modal dispersion by reducing the effective NA of the fiber link. A simple spatial mode filtering technique has been experimentally demonstrated to improve the performance over a 30 m link, achieving a BER of 10−8 at 1 Gbps. This approach offers a simple and a cost-effective solution to deliver Gigabit Ethernet using NRZ signaling over short reach POF networks...
This presents spectral response, experimental data and beam intensity profiles from a novel portable multiplexer unit for spatial domain/space division multiplexing in optical fibers that support hybrid optical architectures by combining spatial and wavelength division multiplexing.
Silicon based photonic integration technology has advanced significantly in the last several years and is now being deployed commercially in data center applications. It can bring unique opportunities for avionics systems to utilize photonics.
Sandia's broad national security mission has supported novel optoelectronics and integrated photonics R&D and technology transfer for over 30 years. Examples of this history, current capabilities, and potential future directions will be discussed.
The National Network for Manufacturing Innovation (NNMI) is a network of research institutes in the United States that focus on developing and commercializing manufacturing technologies through public-private partnerships between U.S. industry, universities, and federal government agencies. The newest Institute was announced July 27, 2015: The American Institute for Manufacturing Integrated Photonics...
MIL-STD-1678 specifies requirements that address airborne platform fiber optic system total ownership cost factors including performance, cost, supportability, maintainability, reliability, durability, producibility, quality, and safety.
In summary, the investigation shows the temperature sensitivity of the POF splices restricted their use specifically to non-critical applications. However, avionic POF splice can be realized in the future with suggested modification.
In all trials, both measured forces spiked sharply upon end face contact. The optical power throughput plateaued for an insertion distance of nearly 2 mm before decreasing due to fiber bending outside of the capillary. This plateau corresponded to insertion losses as low as 0.12 dB, and was typically below 0.3 dB. Our results show that these force spikes strongly coincided with the maxima in optical...
Optical frequency combs from mode-locked lasers are developed and used for realizing unique functionality for applications in ultra-wide bandwidth communication and signal processing.
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