Frequency stabilization of an extended-cavity violet diode laser by resonant optical feedback
Frequency stabilization of an extended-cavity violet diode laser by resonant optical feedback
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DOI：
10.1016/s0030-4018(02)01446-3
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发表时间：
2002-06
影响因子：
2.4
通讯作者：
K. Hayasaka
中科院分区：
文献类型：
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作者：
K. Hayasaka
通过共焦腔的共振光反馈，实现了扩展腔GaN半导体激光器的稳频运转。观察到的频率起伏小于1秒内的300 kHz峰间波动，测得线宽上限为880 kHz。通过对光反馈相位和扩展腔半导体激光器频率的同步伺服控制，实现了高达5 GHz的连续频率扫描。用紫光激光在气体室中对Rb原子在420 nm处的52S1/2-62P3/2跃迁进行了饱和光谱测量，得到了线宽为2.3 MHz的光谱。
Frequency-stable operation of an extended-cavity GaN diode laser was achieved by resonant optical feedback from a confocal cavity. The observed frequency fluctuations were smaller than 300 kHz peak-to-peak in one second, and the upper limit of the linewidth was measured to be 880 kHz. A continuous frequency scan up to 5 GHz was realized by simultaneous servo control on the optical feedback phase and on the extended-cavity diode laser frequency. The violet laser was used to perform saturation spectroscopy on the 52S1/2–62P3/2transition of rubidium at 420 nm in a gas cell, and resulted in spectra with a linewidth of 2.3 MHz.