Group delay ripple reduction and reflectivity increase in a chirped fiber Bragg grating by multiple-overwriting of a phase mask with an electron-beam

Physics

• Electron Beams 50%
• Fiber Bragg Grating 100%
• Phase Error 25%
• Ripples 50%
• Substrates 25%

Chemistry

• Electron Beam 50%
• Group 50%
• Procedure 25%
• Reflectivity 25%
• Time 50%