Space qualified four channel Si SPAD detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00384255" target="_blank" >RIV/68407700:21340/25:00384255 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1117/12.3055617" target="_blank" >https://doi.org/10.1117/12.3055617</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.3055617" target="_blank" >10.1117/12.3055617</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Space qualified four channel Si SPAD detector

Popis výsledku v původním jazyce

We report on the development and performance of a continuous operation four channel silicon Single-Photon Avalanche Diode (SPAD) detector, which is based on the K14 design that has a long and successful history of deployment in space missions. The four channel design makes this detector attractive for applications in quantum communication, particularly ones facilitated via satellites. Overall, this detector is uniquely suited for missions in space, which comes not only because of its radiation ruggedness, low mass and power consumption, but importantly also, because it is capable of stable operation in temperature range from -55 to +50 °C using only passive compensation. Specifically, this new detector package integrates four independent K14 SPADs, each with a 25 µm active area, and each SPAD is equipped with separate active quenching circuit that allows for operation at excess bias voltage ranging from 0,5 to 2,5 V above breakdown. Moreover, the detector package has integrated voltage converter, which generates and regulates identical bias voltage for all channels. At 2 V above breakdown the detector possesses roughly 36% detection probability for wavelength range of 500 to 800 nm and timing resolution better than 40 ps RMS. A new advancement in the detector’s design is an increase in its maximum detection rate of up to 3 MHz, a 50% improvement over its predecessor. Additionally, we have recently achieved a modest reduction in DCR, a reduction in power consumption and simplification of the detector’s connections.

Název v anglickém jazyce

Space qualified four channel Si SPAD detector

Popis výsledku anglicky

We report on the development and performance of a continuous operation four channel silicon Single-Photon Avalanche Diode (SPAD) detector, which is based on the K14 design that has a long and successful history of deployment in space missions. The four channel design makes this detector attractive for applications in quantum communication, particularly ones facilitated via satellites. Overall, this detector is uniquely suited for missions in space, which comes not only because of its radiation ruggedness, low mass and power consumption, but importantly also, because it is capable of stable operation in temperature range from -55 to +50 °C using only passive compensation. Specifically, this new detector package integrates four independent K14 SPADs, each with a 25 µm active area, and each SPAD is equipped with separate active quenching circuit that allows for operation at excess bias voltage ranging from 0,5 to 2,5 V above breakdown. Moreover, the detector package has integrated voltage converter, which generates and regulates identical bias voltage for all channels. At 2 V above breakdown the detector possesses roughly 36% detection probability for wavelength range of 500 to 800 nm and timing resolution better than 40 ps RMS. A new advancement in the detector’s design is an increase in its maximum detection rate of up to 3 MHz, a 50% improvement over its predecessor. Additionally, we have recently achieved a modest reduction in DCR, a reduction in power consumption and simplification of the detector’s connections.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proc. SPIE 13525, Quantum Optics and Photon Counting 2025

ISBN

978-1-5106-8846-9

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham (stát Washington)

Místo konání akce

Praha

Datum konání akce

7. 4. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001533517800004