scholarly journals Shaping the spectral characteristics of fiber Bragg gratings written in optical fiber taper using phase mask method

2012 ◽  
Vol 4 (4) ◽  
Author(s):  
Tomasz Osuch ◽  
Kazimierz Jedrzejewski ◽  
Lech Lewandowski ◽  
Wieslaw Jasiewicz
Keyword(s):  
Optical Fiber ◽  
Spectral Characteristics ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Fiber Taper ◽  
Optical Fiber Taper

Features of Femtosecond Micromachining of Solid Transparent Materials

2021 ◽  
Vol 316 ◽  
pp. 993-998
Author(s):  
Anton S. Chernikov ◽  
Ruslan V. Chkalov
Keyword(s):  
Laser Radiation ◽  
Femtosecond Laser ◽  
Optical Fiber ◽  
Spectral Characteristics ◽  
Fiber Bragg Gratings ◽  
Single Mode ◽  
Bragg Gratings ◽  
Femtosecond Laser Radiation ◽  
Third Order ◽  
Correction System

The paper reports the inscription of second- and third-order fiber Bragg gratings (FBGs) in single-mode optical fiber (SMF-28e+) via the line-by-line (LbL) and the point-by-point (PbP) methods using femtosecond laser radiation. The use of these methods jointly with based on an automatic spatial deviation correction system is considered. The approach allows to significantly improve spectral characteristics of FBG without the loss of fabrication performance.

scholarly journals High-Resolution Displacement Sensor Based on a Chirped Fabry–Pérot Interferometer Inscribed on a Tapered Microfiber

2019 ◽  
Vol 9 (3) ◽  
pp. 403 ◽  
Author(s):  
Zhong Lu ◽  
Yuan Cao ◽  
Guangying Wang ◽  
Yang Ran ◽  
Xinhuan Feng ◽  
...  
Keyword(s):  
High Resolution ◽  
Optical Fiber ◽  
Cavity Length ◽  
Spectral Characteristics ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Displacement Sensor ◽  
Fabry Perot ◽  
Displacement Sensitivity ◽  
Tension State

In this study, a high-resolution optical fiber Fabry–Pérot (FP) interferometer displacement sensor with chirped spectral characteristics based on a tapered microfiber is theoretically discussed and experimentally implemented. Instead of inscribing two fiber Bragg gratings (FBGs) on the symmetric position of the microfiber, we continuously inscribed one long FBG along the microfiber region to reduce the cavity length. The bandwidth of the interferometer is over 35 nm, and its displacement sensitivity is as high as 36.5 nm/mm at the tension state.

Fabrication of Fiber Bragg Gratings in High Germania Boron Co-doped Optical Fiber by the Phase Mask Method

2012 ◽  
Author(s):  
Sulaiman Wadi Harun ◽  
Prabakaran Poopalan ◽  
Harith Ahmad
Keyword(s):  
Optical Fiber ◽  
Key Words ◽  
Continuous Wave ◽  
Uv Light ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Uv Laser ◽  
Bragg Wavelength ◽  
Co Doped

Kaedah untuk menghasilkan peranti FBG yang mempunyai peratus pantulan yang tinggi diperkenalkan. Peranti FBG telah dicetak dalam gentian optik khas yang mengandungi germanium dan boron yang tinggi. Kandungan germanium ion di dalam gentian optik teras adalah sebanyak mol 20%. Cara yang digunakan ialah cara percetakan topeng fasa dengan menggunakan cahaya ultra ungu ion yang mempunyai panjang gelombang 244 nm sebagai sumber cahaya. Kami telah berjaya menghasilkan FBG yang mempunyai peratus pantulan setinggi 99.9% dan masa yang diambil untuk cetakan adalah kurang daripada 10 minit. Kata kunci: gentian optik; peranti FBG; laser UV; panjang gelombang Bragg; topeng fasa A technique to fabricate high reflectivity fiber Bragg gratings (FBGs) with minimal optics is presented. The FBG is written in high germania boron co-doped optical fiber using a phase mask with a 244 nm continuous-wave UV light as the printing source. The mol percentage of germania ion in the fiber core is about 20%. We have successfully fabricated FBGs with reflectivity as high as 99.9% in less than 10 minutes of exposure time. Key words: Optical fiber; fiber Bragg grating; UV laser; Bragg wavelength; phase mask

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