Katia Shtyrkova

Performance of 100G telecom modems with variable channel outage durations for flexible data rate free-space laser communications

Katia Shtyrkova, Bryan C. Bilyeu, Bryan S. Robinson, Marvin S. Scheinbart et autres

We present a systematic investigation of receiver time dynamics of commercial 100-Gbps coherent transceivers with the intent of using such transceivers with variable data rates less than 100 Gbps for free-space laser communications missions. Applying a post-transmitter but pre-amplifier intensity gating can …

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Editorial: Advances in Free-Space Laser Communications

Katia Shtyrkova, Farzana I. Khatri, Dimitar Radkov Kolev, Malcolm W. Wright

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High-Fidelity Control of a Strongly Coupled Electro-Nuclear Spin-Photon Interface

Isaac Harris, Ian Christen, S. M. Patomäki, Hamza Raniwala et autres

Long distance quantum networking requires combining efficient spin-photon interfaces with long-lived local memories. Group-IV color centers in diamond (SiV, GeV, and SnV) are promising candidates for this application, containing an electronic spin-photon interface and dopant nuclear spin memory. Recent work has demonstrated …

Design and performance of a 40W uplink laser transmitter for NASA’s O2O laser communications mission

Katia Shtyrkova, Clement D. Burton, Robert T. Schulein, Igor D. Gaschits et autres

NASA’s Orion Artemis II Optical Communications System (O2O) will provide operational laser communications between the ground and lunar orbit for the Artemis II crewed mission. In this work we describe a 40 W ground-based laser transmitter for the O2O system. The uplink …

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The Black Hole Explorer: astrophysics mission concept engineering study report

Eliad Peretz, Peter L. Kurczynski, Michael D. Johnson, Janice Houston et autres

The Black Hole Explorer (BHEX) mission will enable the study of the fine photon ring structure, aiming to reveal the clear universal signatures of multiple photon orbits and true tests of general relativity, while also giving astronomers access to a much greater …

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The Black Hole Explorer: motivation and vision

Michael D. Johnson, Kazunori Akiyama, Rebecca Baturin, Bryan C. Bilyeu et autres

We present the Black Hole Explorer (BHEX), a mission that will produce the sharpest images in the history of astronomy by extending submillimeter Very-Long-Baseline Interferometry (VLBI) to space. BHEX will discover and measure the bright and narrow “photon ring” that is predicted …

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The Black Hole Explorer: Motivation and Vision

Michael D. Johnson, Kazunori Akiyama, Rebecca Baturin, Bryan C. Bilyeu et autres

We present the Black Hole Explorer (BHEX), a mission that will produce the sharpest images in the history of astronomy by extending submillimeter Very-Long-Baseline Interferometry (VLBI) to space. BHEX will discover and measure the bright and narrow "photon ring" that is predicted …

A scalable cavity-based spin-photon interface in a photonic integrated circuit

Kevin C. Chen, Ian Christen, Hamza Raniwala, Marco Colangelo et autres

A central challenge in quantum networking is transferring quantum states between different physical modalities, such as between flying photonic qubits and stationary quantum memories. One implementation entails using spin-photon interfaces that combine solid-state spin qubits, such as color centers in diamond, with …

A scalable cavity-based spin–photon interface in a photonic integrated circuit

Kevin C. Chen, Ian Christen, Hamza Raniwala, Marco Colangelo et autres

A central challenge in quantum networking is transferring quantum states between different physical modalities, such as between flying photonic qubits and stationary quantum memories. One implementation entails using spin–photon interfaces that combine solid-state spin qubits, such as color centers in diamond, with …

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Fully Packaged Multichannel Cryogenic Quantum Memory Module

David J. Starling, Katia Shtyrkova, Ian Christen, Ryan P. Murphy et autres

Realizing a quantum network will require long-lived quantum memories with optical interfaces incorporated into a scalable architecture. Color-center quantum emitters in diamond have emerged as a promising memory modality due to their optical properties and compatibility with scalable integration. However, developing a …

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Precision synchronization for free-space quantum networking

Neal W. Spellmeyer, Don M. Boroson, P. Ben Dixon, Matthew E. Grein et autres

Precision synchronization is vital for robust long-distance quantum networking over fiber and free-space channels for which high-fidelity entanglement swapping between separate sources via an optical Bell state measurement requires temporal overlap of photonic qubits arriving from either source. This challenge is particularly …

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A fully packaged multi-channel cryogenic module for optical quantum memories

David J. Starling, Katia Shtyrkova, Ian Christen, Ryan P. Murphy et autres

Realizing a quantum network will require long-lived quantum memories with optical interfaces incorporated into a scalable architecture. Color centers quantum emitters in diamond have emerged as a promising memory modality due to their optical properties and compatibility with scalable integration. However, developing …