Moiré apodized reflective volume Bragg grating

Sergiy Mokhov; Daniel Ott; Vadim Smirnov; Ivan Divliansky; Boris Zeldovich; Leonid Glebov

doi:10.1117/1.OE.57.3.037106

16 March 2018 Moiré apodized reflective volume Bragg grating

Sergiy Mokhov, Daniel Ott, Vadim Smirnov, Ivan Divliansky, Boris Zeldovich, Leonid Glebov

Author Affiliations +

Optical Engineering, Vol. 57, Issue 3, 037106 (March 2018). https://doi.org/10.1117/1.OE.57.3.037106

Abstract

Volume Bragg grating (VBG) with refractive index modulation (RIM) apodized with sinusoidal semiperiod profile is studied theoretically and experimentally. An apodized VBG of this type was fabricated with a sequential recording of two VBGs with slightly different resonant Bragg wavelengths in the same glass wafer. As a result, a moiré pattern was produced with a constant average refractive index and a slow sinusoidal envelope of RIM. Modeling showed that an apodized VBG with a sinusoidal semiperiod has provided a suppression of the sidelobes in the reflection spectrum. The experimental measurements are in good agreement with the theoretical predictions. This type of VBG is suitable for high-resolution spectroscopy applications due to a significant reduction of sidelobes.

Citation Download Citation

Sergiy Mokhov, Daniel Ott, Vadim Smirnov, Ivan Divliansky, Boris Zeldovich, and Leonid Glebov "Moiré apodized reflective volume Bragg grating," Optical Engineering 57(3), 037106 (16 March 2018). https://doi.org/10.1117/1.OE.57.3.037106

Received: 30 October 2017; Accepted: 14 February 2018; Published: 16 March 2018

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