High-power 50 fs Kerr-lens mode-locked Yb:CALGO oscillator

Doh-Yoon Kim; Byung-Jun Park; Sang-Cheol Son; Ki-ju Yee

doi:10.1117/12.3005218

13 March 2024 High-power 50 fs Kerr-lens mode-locked Yb:CALGO oscillator

Doh-Yoon Kim, Byung-Jun Park, Sang-Cheol Son, Ki-ju Yee

Proceedings Volume PC12864, Solid State Lasers XXXIII: Technology and Devices; PC128640M (2024) https://doi.org/10.1117/12.3005218
Event: SPIE LASE, 2024, San Francisco, California, United States

Conference Poster

Abstract

We report on a Kerr-lens mode-locked Yb:CALGO (Yb:CaGdAlO4) oscillator providing 50 fs pulses at 59.4 MHz repetition with an output power of 8.6 W that is pumped by a diode laser coupled to a multimode fiber. The mode-locking was initiated near the cavity stability edge of the CW mode, where the Kerr lensing at the gain crystal in the pulse mode reduces the cavity loss of the spatial mode and suppresses the CW mode build-up. The obtained pulse energy of 0.15 μJ and peak power of 2.5 MW from a simple laser cavity without saturable absorber, pumped by a conventional diode laser, are competitive in comparison to other Yb-doped bulk oscillators. An overview of previously demonstrated mode-locked oscillators reveals that the Yb:CALGO oscillator employing Kerr-lens mode-locking is a promising candidate to achieve ultrashort high-power pulses near 1040 nm.

Citation Download Citation

Doh-Yoon Kim, Byung-Jun Park, Sang-Cheol Son, and Ki-ju Yee "High-power 50 fs Kerr-lens mode-locked Yb:CALGO oscillator", Proc. SPIE PC12864, Solid State Lasers XXXIII: Technology and Devices, PC128640M (13 March 2024); https://doi.org/10.1117/12.3005218

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available