1 / 18

LASE R SYS TEM S TATUS

LASE R SYS TEM S TATUS. G.Gatti , A. Ghigo , C.Vicario , P.Musumeci , M. Petrarca , S. Cialdi , D. Filippetto. REVIEW COMMITTEE 16/11/05. LASE R SYS TEM S TATUS. OVERVIEW SYSTEM PERFORMANCES Characterization PULSE SHAPING Measurements & Calculations UV TEMPORAL DIAGNOSTICS X-Correlator

kcompton
Download Presentation

LASE R SYS TEM S TATUS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. LASER SYSTEM STATUS G.Gatti, A. Ghigo , C.Vicario , P.Musumeci, M. Petrarca , S. Cialdi , D. Filippetto REVIEW COMMITTEE 16/11/05

  2. LASER SYSTEM STATUS • OVERVIEW • SYSTEM PERFORMANCESCharacterization • PULSE SHAPINGMeasurements & Calculations UVTEMPORAL DIAGNOSTICSX-Correlator • Streak Camera • TIMINGRF Synchronization & Jitter Measurement RF Power Triggering • BEAM TRANSFER LINEDesigned Set-up, Feedback

  3. Evolution Nd:YLF Continuum Nd:Yag Verdi Nd:YVO4 Pumps 800 nm 10 nJ 80 MHz 100 fs Hidra CPA Ti:Sa Amplifier RGA + 2 MP Mira Ti:Sa Oscillator THG UV Stretcher Seed Line 800 nm 50 mJ 10 Hz 100 fs 266 nm 4 mJ 10 Hz 100 fs 266 nm 1,8 mJ 10 Hz 0.5-12 ps DAZZLER TeO2 RF Reference R&S 2,856 GHz Synchro Lock PLL f/36 Ext. Synch.

  4. SPECTRUM AUTOCORRELATION 205 fs FWHM CHARACTERIZATION : OSCILLATOR GAUSSIAN SPECTRUM ∆λ=12nm FWHM PULSE LENGHT 130 fs FWHM Single Shot AutoCorrelator

  5. AUTOCORRELATION TRANSVERSE INTENSITY TEM00 PULSE LENGHT 104 fs FWHM CHARACTERIZATION : AMPLIFIER NEW IR TEMPORAL DIAGNOSTIC 400 fs STREAK-CAMERA 2 DIFFERENT COMPRESSOR CONFIGURATIONS (CHIRP)

  6. BLUE SPECTRUM UV SPECTRUM • M2x: 2.7 • M2y: 1.9 CHARACTERIZATION : UPCONVERSION THG CRITICAL ELEMENT SLIGHTLY OUT OF SPECS 2 mJ REQUESTED 1.4mJ MEASURED NEW BBO SH-BLUE 400 nm COMPROMISE BW/POWER TH-UV 266 nm

  7. STABILITY MEASUREMENTS Out of Amplifier at 800 nm 2% Power Variations

  8. PULSE SHAPING GOAL: 10ps Flat Top- 1ps rise time Frequency Domain Filtering Through AO Device: DAZZLER EXPERIMENTAL SETUP • -X-CORRELATOR • NEW UV TEMPORAL • DIAGNOSTIC READY • -FIRST RESULTS • OBTAINED IN FRASCATI X-CORRELATOR DIAGNOSTICS SPECTROM. SPECTROM. IR IR BLUE UV Hidra CPA Ti:Sa Amplifier RGA + 2 MP Mira Ti:Sa Oscillator THG DAZZLER TeO2 UV Stretcher

  9. PULSE SHAPING: FREQ. DOMAIN METHOD:COMPENSATE AMPLIFIER 2nd ORDER AND HIGHER MEASURING 1st 2nd 3rd HARMONIC & COMPARING WITH CALCULATIONS CHANGING CHIRP TERM & FIXING HIGH ORDER DAZZLER Stretcher Amplifier (RGA) AMPLIFIER Power Amplifier (Multipass) 2nd ORDER COMPENSATION Ф2=25000 fs2 Compressor 1st H. 800nm 2nd H. 400nm 3rd H. 266nm TO UPCONVERSION

  10. PULSE SHAPING: FREQ. DOMAIN 1st H. 800nm 2nd H. 400nm 3rd H. 266nm

  11. PULSE SHAPING: TIME/FREQ. DOMAIN CHANGING CHIRP FOCALIZING UV

  12. X-CORRELATOR -HIGH RESOLUTION (PROBE BEAM) -REMOTE CONTROLLED UV BBO CRYSTAL BLUE IR DELAY LINE

  13. X-CORRELATOR TILT OF 2nd HARM CRYSTAL GOOD MATCH WITH THEORY AND SPECTRUM MEASUREMENTS

  14. X-CORRELATOR UV STRETCHER GIVES SPATIAL DISPLACEMENT ON WAVELENGHTS INTERACTION VERY SENSITIVE TO BEAMS DISPLACEMENTS, TRANSVERSE DIMENSIONS, POWER OF THE BEAMS t SOLUTIONS PLANNED NEED OF A REFERENCE STREAK CAMERA UPGRADE FOR UV t BBO

  15. BPF Fundam. BPF 9th H. TIMING: JITTER MEASUREMENTS (LASER SIDE) RF Reference R&S 2,856 GHz Synchro Lock f/36 PLL2 f X 9 LO Mira Ti:Sa Oscillator MIXER 2 LO PLL1 MIXER 1 DRIVING SYSTEM f=c/2L PZT GALVO L

  16. INTERNAL TIMING : RF POW TRIG ? 79,3 MHz SYNC.IN SDG RF system 4 µs before laser beam 10 Hz REP. RATE IN f/100 DELAY GENER. QSW PC1 PC2 f/100 EXT. LINE SYNCH. 10 Hz 10 Hz 1 KHz Evolution Nd:YLF Continuum Nd:Yag Verdi Nd:YVO4 Hidra CPA Ti:Sa Amplifier RGA + 2 MP Mira Ti:Sa Oscillator THG DAZZLER TeO2 UV Stretcher

  17. TRANSFER LINE YAG M5 CCD M1 FP L1 PIPE Computer MM G CLEAN ROOM L2 L4 W C2 C1 L3 Cathode • - Positioning Feedback Ready • Optics Arriving • Optical Table Arriving M3 M2 M4

  18. CONCLUSIONS • PERFORMING SYSTEM • PULSE SHAPING IN PROGRESS • CONTACTS FOR OTHER WAYS • NEED OF EFFICIENT TIME DIAGNOSTIC • SYNCHRONIZATION IN AGREEMENT WITH SPECS • WAITING LAST COMPONENTS FOR TRANSFER LINE MOUNTING • DEVELOPED SOFTWARE FEEDBACK FOR POSITIONING STABILITY

More Related