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The present project proposes to study the feasibility of PoF in extreme conditions, using commercial components. In the first phase, we will set up a lab space with the necessary engineering controls to lower the safety classification of the required class 4 laser to a class 1. Then the receiver will be characterized at cryogenic temperatures (down to 77 K). By adding a power storage capacitor and an LDO regulator, this setup can be used to power an ASIC with a power-pulsing scheme, or a low-power digital SiPM. We will collaborate with universities for the aforementioned. Finally, we will work with national and international collaborators, and will investigate the possibility of characterizing the photodiode with respect to different irradiation doses compatible with e+e- colliders (> 100 krad).
Specifications - Laser
laser diagram from Bill Pellico:
laser with housing: https://www.digikey.com/en/products/detail/broadcom-limited/AFBR-POMEK2204/15928069?s=N4IgTCBcDaIIIDEBCAlAtABQPIFkCiA0mGAAwAsIAugL5A
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laser diagram from Bill Pellico:
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Specifications - System
material for laser enclosure: SF41465161 (1).pdf
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https://slac.sharepoint.com/sites/ESH/laser/lso/facilities/LCLS-fibertiming.aspx (Fiber-coupled power meters and fiberscopes, Charlie Xu and Sam Eisenberg. They’re responsible for the laser fiber timing system for NEH lasers for LCLS experiments. Documentation for the associated Fiber Timing Lab )
Presentations
Initial Proposals
20-FY242_KA25_PoF_Proposal.pptx
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Meeting Minutes
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Minutes
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Minutes
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Overview
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