115 fs pulses from Yb3+:KY(WO4)2 laser with low loss nanostructured saturable absorber
✍ Scribed by A.A. Kovalyov; V.V. Preobrazhenskii; M.A. Putyato; O.P. Pchelyakov; N.N. Rubtsova; B.R. Semyagin; V.E. Kisel'; S.V. Kuril'chik; N.V. Kuleshov
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 120 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
Mode-locking at repetition rate of 70 MHz with 115 fs spectral-limited pulses was obtained in Yb 3+ :KY(WO 4 ) 2 laser with low loss saturable absorber. Special design and manufacture of saturable absorber incorporating InGaAs quantum wells separated by nanostructured barriers and a wide band total reflector resulted in the semiconductor saturable absorption mirror (SESAM) with short recovery time and low non-saturable losses. This permitted to receive average output power of 1.57 W in mode-locking regime close to 1.62 W power in continuous-wave regime. 10 nm Intensity, a.u. 0.