Noise suppression for the precise measurement of Fabry-Perot cavity with wide tunable range

2014 ◽  
Author(s):  
Radek Smid ◽  
Martin Cizek ◽  
Bretislav Mikel ◽  
Jan Hrabina ◽  
Josef Lazar ◽  
...  
Keyword(s):  
Precise Measurement ◽  
Noise Suppression ◽  
Tunable Range ◽  
Fabry Perot

Injection-locked dual fabry-perot laser diodes for interferometric noise suppression

2015 ◽  
Author(s):  
Sang-Hwa Yoo ◽  
Myeonggyun Kye ◽  
Quoc-Hoai Tran ◽  
Chang-Hee Lee
Keyword(s):  
Noise Suppression ◽  
Laser Diodes ◽  
Fabry Perot ◽  
Interferometric Noise

scholarly journals Supermode-noise suppression using a nonlinear Fabry–Pérot filter in a harmonically mode-locked fiber ring laser

2002 ◽  
Vol 81 (24) ◽  
pp. 4520-4522 ◽  
Author(s):  
Donghui Zhao ◽  
Yicheng Lai ◽  
Xuewen Shu ◽  
Lin Zhang ◽  
Ian Bennion
Keyword(s):  
Ring Laser ◽  
Noise Suppression ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Fabry Perot

scholarly journals Understanding interferometry for micro-cantilever displacement detection

2016 ◽  
Vol 7 ◽  
pp. 841-851 ◽  
Author(s):  
Alexander von Schmidsfeld ◽  
Tobias Nörenberg ◽  
Matthias Temmen ◽  
Michael Reichling
Keyword(s):  
Precise Measurement ◽  
Systematic Approach ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Relative Positioning ◽  
Optimum Conditions ◽  
Noise Spectral Density ◽  
Atomic Force ◽  
Fabry Perot ◽  
Micro Cantilever

Interferometric displacement detection in a cantilever-based non-contact atomic force microscope (NC-AFM) operated in ultra-high vacuum is demonstrated for the Michelson and Fabry–Pérot modes of operation. Each mode is addressed by appropriately adjusting the distance between the fiber end delivering and collecting light and a highly reflective micro-cantilever, both together forming the interferometric cavity. For a precise measurement of the cantilever displacement, the relative positioning of fiber and cantilever is of critical importance. We describe a systematic approach for accurate alignment as well as the implications of deficient fiber–cantilever configurations. In the Fabry–Pérot regime, the displacement noise spectral density strongly decreases with decreasing distance between the fiber-end and the cantilever, yielding a noise floor of 24 fm/Hz0.5 under optimum conditions.

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