Rapid wavelength scanning based on acousto-optically tuned external-cavity laser diode |
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Authors: | Takamasa Suzuki Ryu-ichi Nagai Samuel Choi |
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Affiliation: | a Niigata University, Graduate School of Science and Technology, 8050 Ikarashi 2, Niigata, 950-2181 Japanb Niigata University, Faculty of Engineering, 8050 Ikarashi 2, Niigata, 950-2181 Japan |
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Abstract: | High-speed, wide-range wavelength scanning is demonstrated using a laser diode with an antireflection coating and an external cavity employing an acousto-optic deflector. The narrow spectral width of 0.2 nm observed in the experiment indicates the availability of a highly coherent laser beam. The scanning range of 15 nm under rapid modulation is confirmed in the prototype system. A tuning rate of more than 100 kHz is achieved without any mode hops. To the best of our knowledge, no such high-speed wavelength tuning based on an acousto-optical configuration has been demonstrated thus far. |
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Keywords: | Wavelength scan External-cavity Acousto-optic deflector Laser diode |
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