Paper
2 March 2012 Single resonance monolithic Fabry-Perot filters formed by volume Bragg gratings and multilayer dielectric mirrors
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Proceedings Volume 8257, Optical Components and Materials IX; 82570I (2012) https://doi.org/10.1117/12.908199
Event: SPIE OPTO, 2012, San Francisco, California, United States
Abstract
High efficiency reflecting volume Bragg gratings (VBGs) recorded in PTR glass plates have shown un-preceded performances that make them very good candidates for narrowband spectral filtering with sub-nanometer spectral widths. However, decreasing the bandwidth to value below 30-50 pm is very challenging as it requires increasing the thickness of the RBG to more than 15-20 mm. To overcome this limitation, we propose a new approach which is a monolithic Fabry-Perot cavity which consists from a reflecting VBG with a multilayer dielectric mirror (MDM) deposited on its surface. A VBG with a grating vector perpendicular to its surface and a MDM produce a Fabry-Perot resonator with a single transmission band inside of the reflection spectrum of the VBG. We present a theoretical description of this new class of filters that allow achieving a single ultra-narrowband resonance associated with several hundred nanometers rejection band. Then we show the methods for designing and fabricating such filter. Finally, we present the steps that we followed in order to fabricate a first prototype for 852 nm and 1062 nm region that demonstrates a 30 pm bandwidth, 90+% transmission at resonance and a good agreement with theoretical simulation.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Julien Lumeau, Cihan Koc, Oleksiy Mokhun, Vadim Smirnov, Michel Lequime, and Leonid B. Glebov "Single resonance monolithic Fabry-Perot filters formed by volume Bragg gratings and multilayer dielectric mirrors", Proc. SPIE 8257, Optical Components and Materials IX, 82570I (2 March 2012); https://doi.org/10.1117/12.908199
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KEYWORDS
Dielectric filters

Optical filters

Dielectric mirrors

Fabry–Perot interferometers

Fiber Bragg gratings

Mirrors

Glasses

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