Efficient noise suppression of an amplified diode-laser by optical filtering and resonant optical feedback |
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Authors: | Y Zhang K Hayasaka K Kasai |
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Institution: | (1) National Institute of Information and Communications Technology, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan;(2) CREST, Japan Science and Technology Agency, 1-9-9 Yaesu, Chuo-ku 103-0028, Japan |
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Abstract: | We present the noise suppression of an amplified diode laser by using an optical filter and resonant optical feedback. The
intensity noise of the amplified diode laser has been significantly decreased by using the optical filter cavity. It was further
suppressed and reached the shot noise limit at 15 MHz by introducing resonant optical feedback from the transmission of the
filter cavity. The filter cavity transmits 53% of injection power, and the output power of the filter cavity is more than
200 mW. The observed frequency fluctuations were less than 100 kHz in one minute. This level of noise suppression and output
power may allow diode lasers to be utilized in many quantum-optics experiments.
PACS 42.55-f; 42.55-Px; 42.50.-p |
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Keywords: | |
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