1. Lab book samples What goes in the lab book -- everything

2. Lab books -- summary Lab book is key to organization Complex experiments: –1 day to take data –1 day to analyze and update lab book What goes in a lab book -- everything you need to reproduce results Crude diagrams of experiment, circuit schematics, etc Pin-outs and data sheets for opto-electronic components Raw data -- –ex: as read off voltmeter or scope –copy of data traces (chart recorder trace, scope photo, computer image file) Processed data -- after computer fits, smoothing, etc Equations and relevant theory Narrative in your own words -- what was done, why, and what were results

3. Sample 1 -- Laser intensity servo Similar to upcoming proficiency demo Crude circuit diagrams Note -- Pasted in sheets okay Optical setup Circuit schematic

4. Effect of intensity servo on experiment Attempt to reach shot noise in atomic clock experiment Noise measurement Compare to shot noise theory

5. Microwave amplifier Similar to proficiency demo Describes hand-wound transformers, hand-tuned band-pass filters Narrative and parts list includes manufacturer Circuit schematic

6. Problem with air conditioner Air conditioner compressor generates acoustic noise Causes laser frequency jitter Characterize noise find dominant frequency Reduce noise silencers box w/ lead-backed acoustic foam note manufacturer info

7. Constant-current supply for magnet control Magnetic fields have strong effect on atomic clocks Inside shielding -- bias field must be stable Narrative & schematic Special resistors specification sheet

8. More on constant-current supply Page from text book describing theory Op amp specification sheets w/ pinout Textbook page includes reference Op amp specification sheets

9. Conversion efficiency of AOM Measure optical conversion efficiency of acousto optic modulator/ shifter (AOM) Relevant for proficiency demo Narrative & optical setup Raw data read off power meter

10. Enhance conversion efficiency of AOM Add telescope to provide optimum beam size

11. Construct frequency multiplication chain Use commercial components Measure power losses at each step Similar to proficiency demo

12. More raw data from microwave power measurement Use as much space as needed

13. Microwave cable length effects

14. Dye laser power problems Can effect any laser Dye laser optics tend to be more exposed

15. Fiber optic temperature study Fiber optic used as spatial filter/ precision beam combiner Like single mode waveguide Very pure spatial mode -- excellent mode matching for two beams Problem: fiber temperature effects clock frequency Hypothesis: polarization mismatch causes slight mode mismatch Polarization maintaining fiber

16. Refine fiber polarization study Special experimental setup to measure residual polarization vs. fiber temperature Effect small, but for clocks -- everything important

18. Magnetic field effects Analyze data from full-day experiment

19. Dye laser problems Must re-align system ~ 100 optical elements -- use irises Complex alignment procedure -- must write down

20. More on alignment Atomic beam problems Everything breaks down sooner or later More alignment notes Atomic beam flux vs temperature

21. Finally finish the magnetic field study Summarize data traces from previous day