✦ LIBER ✦

Apodised fiber Bragg gratings fabricated with a uniform phase mask using Gaussian beam laser

✍ Scribed by Chingchung Yang; Yinchieh Lai

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 304 KB
Volume: 32
Category: Article
ISSN: 0030-3992
DOI: 10.1016/s0030-3992(00)00069-4

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✦ Synopsis

A new exposure scheme for fabricating apodised ÿber Bragg gratings by the use of a uniform phase mask and a Gaussian beam laser is demonstrated. Average refractive index is kept nearly constant along the grating to derive a side lobe suppression of 20 dB in the shorter wavelength. This scheme allows the writing of truly apodized ÿber Bragg gratings.