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Proceedings Paper

GaN laser diodes for quantum sensors and optical atomic clocks
Author(s): S. P. Najda; P. Perlin; M. Leszczyński; S. Stanczyk; C. C. Clark; T. J. Slight; J. Macarthur; L. Prade; L. McKnight
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Paper Abstract

Quantum technologies containing key GaN laser components will enable a new generation of high precision quantum sensors, optical atomic clocks and secure communication systems for many applications such as next generation navigation, gravity mapping and timing since the AlGaInN material system allows for laser diodes to be fabricated over a wide range of wavelengths from the u.v. to the visible. We report our latest results on a range of AlGaInN diode-lasers targeted to meet the linewidth, wavelength and power requirements suitable for optical clocks and cold-atom interferometry systems. This includes the [5s2S1/2-5p2P1/2] cooling transition in strontium ion optical clocks at 422 nm, the [5s21S0-5p1P1] cooling transition in neutral strontium clocks at 461 nm and the [5s2s1/2 – 6p2P3/2] transition in rubidium at 420 nm. Several approaches are taken to achieve the required linewidth, wavelength and power, including an extended cavity laser diode (ECLD) system and an on-chip grating, distributed feedback (DFB) GaN laser diode.

Paper Details

Date Published: 24 April 2020
PDF: 7 pages
Proc. SPIE 11391, Quantum Information Science, Sensing, and Computation XII, 113910C (24 April 2020); doi: 10.1117/12.2554022
Show Author Affiliations
S. P. Najda, TopGaN Ltd. (Poland)
P. Perlin, TopGaN Ltd. (Poland)
M. Leszczyński, TopGaN Ltd. (Poland)
S. Stanczyk, TopGaN Ltd. (Poland)
C. C. Clark, Helia Photonics Ltd. (United Kingdom)
T. J. Slight, Compound Semiconductor Technologies Global Ltd. (United Kingdom)
J. Macarthur, Fraunhofer Ctr. of Applied Photonics (United Kingdom)
L. Prade, Fraunhofer Ctr. of Applied Photonics (United Kingdom)
L. McKnight, Fraunhofer Ctr. of Applied Photonics (United Kingdom)


Published in SPIE Proceedings Vol. 11391:
Quantum Information Science, Sensing, and Computation XII
Eric Donkor; Michael Hayduk, Editor(s)

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