1064-nm DFB laser diode modules applicable to seeder for pulse-on-demand fiber laser systems
| Autor: | Shin Tanaka, Kenichi Nishi, Kanbe Satoshi, Yasuhiko Arakawa, Yoshitaka Yokoyama, Yasunari Maeda, Hayato Kondo, M. Sugawara, Takeo Kageyama, Tsuyoshi Yamamoto, Kan Takada, Reio Mochida, Keizo Takemasa |
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| Rok vydání: | 2014 |
| Předmět: |
Optical amplifier
Distributed feedback laser Materials science business.industry Injection seeder Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Gain-switching law.invention Optics Control and Systems Engineering law Fiber laser Ultrafast laser spectroscopy Optoelectronics Laser power scaling Electrical and Electronic Engineering business Instrumentation |
| Zdroj: | Optical Fiber Technology. 20:714-724 |
| ISSN: | 1068-5200 |
| DOI: | 10.1016/j.yofte.2014.08.004 |
| Popis: | Semiconductor DFB (Distributed feedback) laser diodes with an operating wavelength of 1064 nm, which is suitable for pulse-on-demand fiber laser, have been developed. The stable performance of CW and nanosecond/picosecond pulsed operation is reviewed. By applying gain-switching operation with a simple direct modulation technique, 50-ps pulse generation with a stable spectral single-mode property was obtained. For the efficient amplification of the obtained 50-ps pulse, a monolithic semiconductor optical amplifier (SOA) was integrated into the DFB lasers. An improved peak power of 300 mW at 50-ps pulse was observed with limited optical noise injection when the synchronous modulation technique of the DFB and the SOA was employed. Short cavity lasers showed a high-frequency response compared to the original DFB lasers and achieved a short pulse width of 13 ps by standard gain-switched operation. |
| Databáze: | OpenAIRE |
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