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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Characterization of a thin-film metal-coated fiber optical phase modulator based on thermal effect with a nonlinear control interferometer

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Author(s):
Nunes, Gabriel F. S. [1, 2] ; Palma, Vinicius B. [2, 3] ; Martin, I, Roberta ; Felao, V, Luiz H. ; Teixeira, Marcelo C. M. [4] ; Kitano, Claudio [4] ; Cazo, Rogerio M. [2] ; Sakamoto, Joao M. S. [1, 2]
Total Authors: 8
Affiliation:
[1] Aeronaut Inst Technol, Inst Tecnol Aeronaut ITA, Praca Mal Eduardo Gomes 50, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[2] Inst Adv Studies, Div Photon, Inst Estudos Avancados IEAv, Trevo Cel Av Jose AA do Amarante 1, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[3] Univ Fed Sao Paulo UNIFESP, Av Cesare Mansueto Giulio Lattes 1201, BR-12247014 Sao Jose Dos Campos, SP - Brazil
[4] Felao, Luiz H., V, Martin, Roberta, I, Sao Paulo State Univ UNESP, Dept Elect Engn, Jose Carlos Rossi Ave 1370, BR-15385000 Ilha Solteira, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: APPLIED OPTICS; v. 60, n. 25, p. 7611-7618, SEP 1 2021.
Web of Science Citations: 0
Abstract

In this work, an optical fiber was coated by a thin-film metal layer to work as a fiber optical phase modulator based on thermal effect. This device was assembled in one of the arms of an all-fiber Michelson interferometer stabilized by a nonlinear control system based on variable structure and sliding modes. The frequency response reached 200 Hz, which can be considered high for a device based on the thermal effect. Compared with a fiber optical phase modulator based on the piezoelectric effect, the thermal modulator presented a higher scale factor per meter of optical fiber, showing the potential to work as a simple, low-cost, small-sized, short length, lightweight, and low-voltage fiber optical phase modulator. (C) 2021 Optical Society of America (AU)

FAPESP's process: 19/04679-4 - All-fiber optical interferometer with nonlinear control for accelerometers
Grantee:Gabriel Fernandes de Souza Nunes
Support type: Scholarships in Brazil - Master