Synchronous Photoinjection Using a Frequency-Doubled Gain-Switched Fiber-Coupled Seed Laser and ErYb-Doped Fiber Amplifier

Journal Article · Thu Jun 01 00:00:00 EDT 2006 · Physical Review Special Topics. Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevSTAB.9.063501· OSTI ID:885347

Hansknecht, John; Poelker, Benard

Light at 1.56 um from a gain-switched fiber-coupled diode laser and ErYb-doped fiber amplifier was frequency doubled to obtain over 2W average power at 780 nm with {approx} 40ps pulses and pulse repetition rate of 499 MHz. This light was used to drive the 100kV DC high voltage GaAs photoemission gun at CEBAF at Jefferson Laboratory to produce a high average current beam (100uA) of highly spin-polarized electrons (>80%). This new drive laser system represents a significant advance over laser systems used previously, providing significantly higher power and enhanced reliability.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE - Office of Energy Research (ER)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 885347
• Report Number(s): JLAB-ACO-06-481; DOE/ER/40150-3957; TRN: US0603862
• Journal Information: Physical Review Special Topics. Accelerators and Beams, Vol. 9, Issue 6; ISSN 1098-4402
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
AMPLIFIERS
CEBAF ACCELERATOR
ELECTRONS
FIBERS
LASERS
PHOTOEMISSION
RELIABILITY
SEEDS