Photonic Society 2019 Banquet
We held our 2019 banquet to build student-industry relations, on Tuesday, June 4 at 6 pm in Corwin Pavilion at UCSB. We are thankful for our generous sponsors: Raytheon, HP, IEEE Photonics Society, SPIE, and OSA.
Dr. Laura Sinclair from the National Institute of Standards and Technology (NIST) gave a keynote address discussing exciting applications for frequency combs. See below for more details on her background and her work on frequency combs. Following her presentation, our industry sponsors gave talks about their work with photonics.
Dinner and drinks provided!
Everyone must present ID at the door showing they are over 21 years old.
Dr. Laura Sinclair from the National Institute of Standards and Technology (NIST) gave a keynote address discussing exciting applications for frequency combs. See below for more details on her background and her work on frequency combs. Following her presentation, our industry sponsors gave talks about their work with photonics.
Dinner and drinks provided!
Everyone must present ID at the door showing they are over 21 years old.
Thanks again to our Sponsors!
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Ultra-precise optical time and frequency transfer across turbulent air paths
Dr. Laura Sinclair is a physicist in the Applied Physics Division at the National Institute of Standards and Technology (NIST). She received a B.S. from the California Institute of Technology in 2004, a Ph.D. from the University of Colorado, Boulder in 2011 and was a post-doc at NIST Boulder, including as a National Research Council (NRC) post-doctoral fellow, before joining the staff. She focuses on the development of optical frequency combs and their wide-ranging applications. Recently, she has been particularly interested in the use of frequency combs to precisely transfer time and frequency information. Dr. Sinclair serves as the technical lead of a team that is currently able to synchronize clocks over kilometers of turbulent air to within femtoseconds and is continuing to push the limits of precision time transfer over free-space links.
Abstract:
Optical clock networks hold great potential for applications such as ultra-precise navigation and timing, coherent sensing, future redefinition of the second, searches for dark matter and relativistic tests among others. To achieve their promise, these networks will require optical links many of which will span turbulent air and include moving platforms. Additionally, for some applications, it will not be sufficient to compare relative time or frequency but rather full time synchronization between remote sites will be required.
We have developed frequency-comb-based optical two-way time-frequency transfer (O-TWTFT) to answer this need. Through a coherent exchange of frequency comb pulses and the underlying reciprocity in the time-of-flight for a single-mode link, we are able to measure the relative frequency between remote sites to better than one part in 10^-18, measure the relative time between remote sites to well below 1 femtosecond, and actively synchronize remote sites to have exactly the same frequency and time. Equally important is the speed of the relative timing measurements; we can establish relative timing between the distant sites to fifty femtosecond uncertainty in hundreds of microseconds. I will present an overview of our O-TWTFT system and then focus on several recent results from our group.
Abstract:
Optical clock networks hold great potential for applications such as ultra-precise navigation and timing, coherent sensing, future redefinition of the second, searches for dark matter and relativistic tests among others. To achieve their promise, these networks will require optical links many of which will span turbulent air and include moving platforms. Additionally, for some applications, it will not be sufficient to compare relative time or frequency but rather full time synchronization between remote sites will be required.
We have developed frequency-comb-based optical two-way time-frequency transfer (O-TWTFT) to answer this need. Through a coherent exchange of frequency comb pulses and the underlying reciprocity in the time-of-flight for a single-mode link, we are able to measure the relative frequency between remote sites to better than one part in 10^-18, measure the relative time between remote sites to well below 1 femtosecond, and actively synchronize remote sites to have exactly the same frequency and time. Equally important is the speed of the relative timing measurements; we can establish relative timing between the distant sites to fifty femtosecond uncertainty in hundreds of microseconds. I will present an overview of our O-TWTFT system and then focus on several recent results from our group.
