Passively mode-locked Tm,Ho:YAG laser at 2 µm based on saturable absorption of intersubband transitions in quantum wells

Autor: Kejian Yang, Harald Künzel, Klaus Biermann, Joerg Neuhaus, Christiana Villas-Boas Grimm, Hubertus Bromberger, Hartmut Ruf, Manfred Helm, Hanjo Schäfer, Thomas Dekorsy
Přispěvatelé: Publica
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Optics Express 18(2010)7, 6537-6544
ISSN: 6537-6544
Popis: We report the first demonstration of a solid state laser passively mode-locked through the saturable absorption of short-wavelength intersubband transitions in doped quantum wells: a continuous wave Ti:sapphire laser end-pumped Tm,Ho:YAG laser at the center wavelength of 2.091 mum utilizing intersubband transitions in narrow In(0.53)Ga(0.47)As/Al(0.53)As(0.47)Sb quantum wells. Stable passive mode-locking operation with maximum average output power of up to 160 mW for 2.9 W of the absorbed pump power could last for hours without external interruption and a mode-locked pulse with duration of 60 ps at repetition rate of 106.5 MHz was generated.
Databáze: OpenAIRE