QT5201U wiki QT5201_AY2627S1 https://qt5201.org/index.php/Main_Page MediaWiki 1.46.0 first-letter Media Special Talk User User talk QT5201U wiki QT5201U wiki talk File File talk MediaWiki MediaWiki talk Template Template talk Help Help talk Category Category talk 0 1 53 52 2026-09-19T08:55:05Z Yiming 4 /* Home-Built ECDL and Optical Sideband Generation */ 53 wikitext text/x-wiki <strong>Wiki page for course QT5201U (Quantum control technology) - AY2026/27S1</strong> This will be the place for documenting projects. To be able to write something to this wiki, we need to create a user login manually. If you have not yet created an account, do let me know - Christian. '''Next class:''' Mon 17 Aug 2026 in the seminar room S15 level 5. ==Project pages== ===[[Example project title]]=== One sentence, describing what this project is is about. '''Team members:''' A, B, C === [[QKD receiver characterization (Polarization)]] === Calibrated polarization-state generator to characterize polarization analysis modules in QKD receivers and rigorously quantify the impact on secure key rates. '''Team members:''' Elias X. Huber, various AI agents (open to join forces with other humans as well, you can reach me at elias.x.huber[at typical nus sufix]; please note though that I will likely do the experiment at UTown (CREATE Tower), my schedule tends to be a bit inflexible for team-work, and I am a theorist with no lab experience). === [[Control and measurement in the bosonic cQED system]] === Using control and measurement methods to characterize a dispersively coupled single superconducting cavity and single transmon qubit system, with a thorough review of the theories and experimental techniques behind it. '''Team members:''' Grace Pang and Seungwon Jin ===[[Multi-tone RFSoC driver for an AOM]]=== A multi-tone RF synthesizer on an RFSoC board to drive an acousto-optic modulator(AOM). '''Team members:''' Mani Aarthy ===[[Placeholder for project title]]=== TBD. '''Team members''' Wang Ziyan and Wu Jinbin ===[[Laser Phase Offset Lock]]=== We plan to implement an offset lock to phase stabilize a pair of External Cavity Diode Lasers (ECDL) at a fixed offset of 6.8 GHz, matching the Rb87 ground state hyperfine transition. '''Team members:''' Bibhuti Thapa, Xu Zifang, Chan Jun Jie ===[[Home-Built ECDL and Optical Sideband Generation]]=== The project includes the construction and characterization of a Littrow ECDL, microwave-driven EOM sideband generation near 6.8 GHz, and optical beat-note techniques for relative frequency stabilization with an existing Rb87 trapping laser. '''Team member:''' Liu Yiming ==Resources== Some hopefully useful references should go here. ===Recommended literature=== * Bahaa E. A. Saleh, Malvin Carl Teich: Fundamentals of Photonics, Wiley; available as [https://libproxy1.nus.edu.sg/login?url=https://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=26193&site=ehost-live&ebv=EB&ppid=pp_Cover e-book in NUS]. Excellent reference book for many optics topics. * Mark Fox: Quantum Optics: An Introduction, Oxford University Press; available as [https://libproxy1.nus.edu.sg/login?url=https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=208564 e-book in NUS]. Nice book on traditional quantum optics topics. * Christopher C. Davis: Lasers and electro-optics, Cambridge; available as [https://libproxy1.nus.edu.sg/login?url=https://dx.doi.org/10.1017/CBO9781139016629 e-book in NUS]. Good overall book on optics-related aspects useful for controlling quantum systems. ===Recorded classes=== {| class="wikitable" !Date !! Topic !! Description !! Reference |- | 17.8.2026 | [https://youtu.be/tUuzyOVIlxk Paraxial ray optics] | A recap of how to deal with classical ray optics through ABCD matrices | Saleh, Teich: Fundamentals of Photonics |- | 18.8.2026 | [https://youtu.be/lSKFl8u21_w Paraxial wave optics] | Working towards Gaussian beams found with lasers... | same as above |- | 24.8.2026 | [https://youtu.be/2HZCak7ODlM Optical cavities 1] | Fabry-Perot, simple 1D dimensional | |- | 25.8.2026 | [https://youtu.be/GEa3ktnrMrg Optical cavities 2] | Transverse mode structure, optical coating basics | |- | 14.9.2026 | [https://youtu.be/Lwt6eJe12h0 Homo- and heterodyning basics] | Radiofrequency origins of mixers, optical version | any quantum optics text (e.g. Mark Fox, see above) |- |} Complete playlist: https://www.youtube.com/playlist?list=PLN-Fk1m9cTD4 ==Previous version of this course wiki== * AY2012S2: https://ay2021s2.qt5201.org == Getting started == Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software. * [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ] * Math can be entered in LaTeX style: <code><nowiki><math>r^2=\sqrt{x^2+y^2}</math></nowiki></code> renders as <math>r^2=\sqrt{x^2+y^2}</math> * Should you miss any module or functionality of this wiki, please contact me (Christian Kurtsiefer). 6dlpnthzxkd9ujalizo8x983kmrzhfj