Ultra low-noise coherent supercontinuum amplification and compression below 100 fs in an all-fiber polarization-maintaining thulium fiber amplifier

Rampur, Anupamaa; Stepanenko, Yuriy; Stępniewski, Grzegorz; Kardaś, Tomasz; Dobrakowski, Dominik; Spangenberg, Dirk-Mathys; Feurer, Thomas; Heidt, Alexander; Klimczak, Mariusz (2019). Ultra low-noise coherent supercontinuum amplification and compression below 100 fs in an all-fiber polarization-maintaining thulium fiber amplifier. Optics express, 27(24), pp. 35041-35051. Optical Society of America 10.1364/OE.27.035041

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We report an ultra-low noise, polarization-maintaining, ultrafast Thulium-doped all-fiber chirped pulse amplifier, seeded by a polarized all-normal dispersion (ANDi) supercontinuum (SC) driven by an ultrafast Erbium-fiber laser. The system comprises only polarization-maintaining fibers and delivers 96 fs pulses with 350 mW output power at 100 MHz, centered at 1900 nm. The integrated relative intensity noise (RIN) in the range of 10 Hz – 10 MHz is only 0.047% at the amplifier output, which is virtually identical to the RIN of the Erbium-fiber laser driving the SC. Therefore, neither the SC generation nor the amplification process introduce significant excess noise. The RIN of our system is an order of magnitude lower than similar systems previously seeded with Raman solitons. This highlights the superior noise properties of ANDi SC and their potential as ultra-low noise seed sources for broadband, high power ultrafast fiber amplifiers and frequency combs.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > Lasers

UniBE Contributor:

Rampur, Anupamaa; Spangenberg, Dirk-Mathys; Feurer, Thomas and Heidt, Alexander

Subjects:

500 Science > 530 Physics
600 Technology > 620 Engineering

ISSN:

1094-4087

Publisher:

Optical Society of America

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Alexander Heidt

Date Deposited:

30 Mar 2021 08:46

Last Modified:

30 Mar 2021 15:54

Publisher DOI:

10.1364/OE.27.035041

Related URLs:

BORIS DOI:

10.7892/boris.152814

URI:

https://boris.unibe.ch/id/eprint/152814

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