Invariance of waveguide grating mirrors to lateral displacement phase shifts

F. Brückner, D. Brown, L. Carbone, A. Freise, D. Friedrich, R. Schnabel

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We present a method to analyze the coupling of lateral displacements in nanoscale structures, in particular waveguide grating mirrors (WGMs), into the phase of a reflected Gaussian beam using a finite-difference time-domain simulation. Such phase noise is of interest for using WGMs in high-precision interferometry. We show that, to the precision of our simulations (10-7 rad), waveguide mirrors do not couple lateral displacement into phase noise of a reflected beam and that WGMs are therefore not subject to the same stringent alignment requirements as previously proposed layouts using diffraction gratings.
Original languageEnglish
Pages (from-to)1844-1846
Number of pages3
JournalOptics Letters
Issue number11
Publication statusPublished - 1 Jun 2013


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