Thesis
Miniaturised, high-reliability lasers for quantum technologies
- Creator
- Rights statement
- Awarding institution
- University of Strathclyde
- Date of award
- 2024
- Thesis identifier
- T17069
- Person Identifier (Local)
- 201967217
- Qualification Level
- Qualification Name
- Department, School or Faculty
- Abstract
- This thesis describes the experimental characterisation of the Flame laser module withinthe context of quantum technologies. Alter UK have developed a compact module designed for frequency stabilisation of a laser, measuring 6 cm x 4 cm x 1.5 cm. TheFlame module employs an internal saturation absorption spectroscopy setup to locka distributed Bragg reflector laser diode to an integrated alkali vapour source. Thiseliminates the necessity for external optical components specifically in the laser lockingprocess, resulting in a reduction of the experimental footprint. The Flame’s compactdesign makes it particularly well-suited for the advancement of deployable atomic sensors, aligning with the industry drive towards more efficient and portable quantumtechnology solutions.We explore a device’s frequency stability, revealing a ?? value of 5 × 10?12 at a 1second integration time, which verified the module’s suitability for laser cooling applications. The Flame was integrated into a portable cold-atom system to showcase itspracticality and durability outside a laboratory setting. We investigate the module’sadaptability, utilising 780 nm and 852 nm devices to fabricate two respective opticallypumped magnetometers. The first system exhibited promise as a co-magnetometer,while the second proved more suitable for portable magnetic sensing applications, delivering a sensitivity of 3 pT /?Hz.
- Advisor / supervisor
- Griffin, Paul
- Riis, Erling
- Resource Type
- DOI
Relations
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PDF of thesis T17069 | 2024-10-02 | Public | Download |