Gigahertz repetition rate mode-locked Yb:KYW laser using self-assembled quantum dot saturable absorber

Niels Meiser, Kai Seger, Valdas Pasiskevicius, Hoon Jang, Edik Rafailov, Igor Krestnikov

Research output: Contribution to journalArticlepeer-review

Abstract

Fundamental mode-locking is achieved in a 1.036 GHz cavity using a semiconductor quantum dot saturable absorber mirror with a fast relaxation time component of down to 550 fs. The dispersive cavity delivers 1.7 ps wide pulses with spectra supporting sub-picosecond pulse durations and an M² of 1.3. An average output power of up to 339 mW at wavelengths around 1,032 nm is achieved and the saturable absorber’s damage threshold is identified as a limitation for further power scaling.
Original languageEnglish
Pages (from-to)327–333
JournalApplied Physics B-Lasers and Optics
Volume110
DOIs
Publication statusPublished - 13 Mar 2013

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