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15 November 2018 Tunable hybird optical filter based on a passive cavity for femtosecond lasers
Xiao Xiang, Dongdong Jiao, Tao Liu, Shougang Zhang, Ruifang Dong
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Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109640G (2018) https://doi.org/10.1117/12.2504234
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China
Abstract
Utilizing the mechanism of cavity secondary resonance, we proposed a tunable hybrid optical filter combined band-pass spectral and low-pass noise filtering for femtosecond lasers. The experimental results shown that, by stabilizing the cavity length to different transmission peaks, the 3 dB bandwidths of the spectral filter can be tuned from 1.78 nm to 2.8 nm and the tunable cut-off frequency of the low-pass noise filter can be identified by their different attenuations which vary from 9.5 dB to 15.2 dB, of the relaxation oscillation in the laser relative intensity noise (RIN).
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Xiao Xiang, Dongdong Jiao, Tao Liu, Shougang Zhang, and Ruifang Dong "Tunable hybird optical filter based on a passive cavity for femtosecond lasers", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109640G (15 November 2018); https://doi.org/10.1117/12.2504234
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KEYWORDS
Optical filters
Linear filtering
Laser stabilization
Oscillators
Tunable filters
Bandpass filters
Signal attenuation
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