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Diode-pumped mode-locked Yb3+:Y2O3 ceramic laser.
Optics Express
|May 28, 2009
Summary
This study reports the first continuous-wave mode-locked ceramic laser using ytterbium-doped Y2O3. This novel ytterbium laser generates ultrashort femtosecond pulses with high energy and average power.
Area of Science:
- Laser Physics
- Materials Science
Background:
- Development of solid-state lasers for various applications.
- Challenges in achieving ultrashort pulse generation in ceramic laser hosts.
Purpose of the Study:
- To report the development of a diode-pumped femtosecond ytterbium laser utilizing Y2O3 ceramic.
- To demonstrate passive mode-locking in a ceramic laser medium.
Main Methods:
- Utilized a diode-pumped configuration for the ytterbium laser.
- Employed a semiconductor saturable-absorber mirror for passive mode-locking.
- Used Y2O3 ceramic as the host material for ytterbium doping.
Main Results:
- Generated 615-fs pulses at a 98-MHz repetition rate.
- Achieved a center wavelength of 1076.5 nm.
- Obtained 420 mW average power and 4.3 nJ pulse energy with 2.6 W absorbed pump power.
Conclusions:
- Successfully demonstrated the first continuous-wave mode-locked ceramic laser.
- Y2O3 ceramic is a viable host material for high-performance femtosecond lasers.
- The developed laser offers potential for applications requiring ultrashort pulses.
