Generation of picosecond blue light pulse by frequency doubling of gain-switched GaAlAs laser diode having saturable absorber
| Autor: | Tetsuo Taniuchi, Kazuhisa Yamamoto, Masahiro Kume, Genji Tohmon, Jun Ohya |
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| Rok vydání: | 1991 |
| Předmět: |
Materials science
Laser diode business.industry Second-harmonic generation Saturable absorption Condensed Matter Physics Q-switching Atomic and Molecular Physics and Optics Gain-switching law.invention Optics law Laser diode rate equations Picosecond Ultrafast laser spectroscopy Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | IEEE Journal of Quantum Electronics. 27:2050-2059 |
| ISSN: | 0018-9197 |
| DOI: | 10.1109/3.83415 |
| Popis: | Picosecond pulse generation of blue light by frequency doubling of a GaAlAs laser diode is reported. High power pulse generation is realized by incorporating gain switching of a laser diode with a saturable absorber and frequency doubling in a proton-exchanged MgO:LiNbO/sub 3/ waveguide. The laser diode with a longer saturable absorber can produce optical pulses with higher peak power and narrower pulse width. The spectral bandwidth of second-harmonic generation for the waveguide is evaluated at about 20 nm. This is wide enough to frequency-double all the multilongitudinal modes of the gain-switched laser diode. A blue light pulse of 7.88-mW maximum peak power and 28.7-ps pulsewidth is obtained for a 1.23-W peak pulse of the laser diode. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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