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Measurement of photon echoes in Er:Y2SiO5 at 1.5 mu m with a diode laser and an amplifier

机译:用二极管激光器和放大器在1.5μm的Er:Y2SiO5中测量光子回波

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摘要

We have measured the optical dephasing time of Er3+ transitions near 1.5 mu m in the two crystallographically inequivalent sites of Y2SiO5, using an external-cavity diode laser amplified by an erbium-doped fiber amplifier. Two-pulse photon echoes were observed at zero field and in magnetic fields up to 55 kG, with dephasing times as long as 580 mu s (corresponding to a linewidth of 550 Hz). Stimulated echoes were also measured and showed evidence of spectral diffusion during the 13-ms lifetime of the I-4(13/2) level. (C) 1997 Optical Society of America.
机译:我们使用掺b光纤放大器放大的外腔二极管激光器,测量了Y2SiO5在两个晶体学上不等价的位置处,Er3 +跃迁在1.5μm附近的光学相移时间。在零场和高达55 kG的磁场中观察到两脉冲光子回波,其相移时间长达580μs(对应于550 Hz的线宽)。还测量了受激回波,并显示了I-4(13/2)电平在13毫秒寿命期间频谱扩散的证据。 (C)1997年美国眼镜学会。

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