Multiband filter at adjustable free spectral range by convolution of transfer functions according to the Vernier effect

2016 ◽  
Vol 10 (4) ◽  
pp. 128-133 ◽  
Author(s):  
Abdelaziz Ouariach ◽  
Abdelkarim Nougaoui ◽  
Rachid Malek ◽  
Tijani Gharbi ◽  
Ali El Moussati ◽  
...  
Keyword(s):  
Spectral Range ◽  
Transfer Functions ◽  
Free Spectral Range ◽  
Vernier Effect ◽  
Multiband Filter

scholarly journals Picosecond optically reconfigurable filters exploiting full free spectral range tuning of single ring and Vernier effect resonators

2015 ◽  
Vol 23 (9) ◽  
pp. 12468 ◽  
Author(s):  
Roman Bruck ◽  
Ben Mills ◽  
David J. Thomson ◽  
Benedetto Troia ◽  
Vittorio M. N. Passaro ◽  
...  
Keyword(s):  
Spectral Range ◽  
Free Spectral Range ◽  
Single Ring ◽  
Vernier Effect ◽  
Reconfigurable Filters

scholarly journals Giant Displacement Sensitivity Using Push-Pull Method in Interferometry

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 23
Author(s):  
Paulo Robalinho ◽  
Orlando Frazão
Keyword(s):  
Optical Fibers ◽  
Spectral Range ◽  
Free Spectral Range ◽  
Maximum Sensitivity ◽  
Displacement Sensor ◽  
Maximum Performance ◽  
Displacement Sensors ◽  
Wide Range ◽  
Displacement Sensitivity ◽  
Vernier Effect

We present a giant sensitivity displacement sensor combining the push-pull method and enhanced Vernier effect. The displacement sensor consists in two interferometers that are composed by two cleaved standard optical fibers coupled by a 3 dB coupler and combined with a double-sided mirror. The push pull-method is applied to the mirror creating a symmetrical change to the length of each interferometer. Furthermore, we demonstrate that the Vernier effect has a maximum sensitivity of two-fold that obtained with a single interferometer. The combination of the push-pull method and the Vernier effect in the displacement sensors allows a sensitivity of 60 ± 1 nm/μm when compared with a single interferometer working in the same free spectral range. In addition, exploring the maximum performance of the displacement sensors, a sensitivity of 254 ± 6 nm/μm is achieved, presenting a M-factor of 1071 and MVernier of 1.9 corresponding to a resolution of 79 pm. This new solution allows the implementation of giant-sensitive displacement measurement for a wide range of applications.

scholarly journals High-precision measurement of free spectral range of etalon

2006 ◽  
Vol 42 (12) ◽  
pp. 715 ◽  
Author(s):  
S. Gee ◽  
S. Ozharar ◽  
F. Quinlan ◽  
P.J. Delfyett
Keyword(s):  
High Precision ◽  
Spectral Range ◽  
Precision Measurement ◽  
Free Spectral Range ◽  
High Precision Measurement

Precise control of micro-rod resonator free spectral range via iterative laser annealing

2021 ◽  
Vol 19 (7) ◽  
pp. 071903
Author(s):  
Qin Wen ◽  
Wenwen Cui ◽  
Yong Geng ◽  
Heng Zhou ◽  
Kun Qiu
Keyword(s):  
Spectral Range ◽  
Laser Annealing ◽  
Free Spectral Range ◽  
Precise Control
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