Abstract
A highly efficient and low threshold passively modelocked femtosecond Yb:KYW laser pumped by an InGaAs narrow-stripe laser diode is demonstrated. Near-transform limited pulses of 123 fs at 1047 nm were produced at an average modelocked power of 107 mW for only 308 mW of incident pump power. An optical-to-optical conversion efficiency of 35% was achieved and the corresponding electrical-to-optical efficiency exceeded 14%.
Original language | English |
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Pages (from-to) | 1108-1110 |
Number of pages | 3 |
Journal | Electronics Letters |
Volume | 39 |
Issue number | 15 |
DOIs | |
Publication status | Published - 24 Jul 2003 |