1 mJ pulse bursts from a Yb-doped fiber amplifier

Date
2012-07-01
Advisor
Instructor
Source Title
Optics Letters
Print ISSN
0146-9592
Electronic ISSN
1539-4794
Publisher
Optical Society of America
Volume
37
Issue
13
Pages
2586 - 2588
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract

We demonstrate burst-mode operation of a polarization-maintaining Yb-doped fiber amplifier capable of generating 60 μJ pulses within bursts of 11 pulses with extremely uniform energy distribution facilitated by a novel feedback mechanism shaping the seed of the burst-mode amplifier. The burst energy can be scaled up to 1 mJ, comprising 25 pulses with 40 μJ average individual energy. The amplifier is synchronously pulse pumped to minimize amplified spontaneous emission between the bursts. Pulse propagation is entirely in fiber and fiber-integrated components until the grating compressor, which allows for highly robust operation. The burst repetition rate is set to 1 kHz and spacing between individual pulses is 10 ns. The 40 μJ pulses are externally compressible to a full width at half-maximum of 600 fs. However, due to the substantial pedestal of the compressed pulses, the effective pulse duration is longer, estimated to be 1.2 ps.

Course
Other identifiers
Book Title
Keywords
Fiber amplifiers, Fibers, Ytterbium, Optical pumping
Citation
Published Version (Please cite this version)