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Rapid prototyping of all-polymer AWGs for FBG readout using direct laser lithography

 
: Pichler, E.; Bethmann, K.; Kelb, C.; Schade, W.

:

Optics Letters 43 (2018), Nr.21, S.5347-5350
ISSN: 0146-9592
Englisch
Zeitschriftenaufsatz
Fraunhofer HHI ()

Abstract
This Letter describes the design, production, and characterization of a
1×2
1×2
arrayed waveguide grating (AWG) for fiber Bragg grating (FBG) readout, centered at 850 nm, with a channel spacing of 1 nm. The employed manufacturing process is laser direct lithography, a low-cost, rapid-prototyping capable, maskless method that allows for short iteration cycles and simple migration of a successful design to mask-based high throughput methods. We also consider the achievable AWG performance if used for strain or temperature measurements with FBG sensors.

: http://publica.fraunhofer.de/dokumente/N-581958.html