High-order dispersion in photonic crystal waveguides.
High-order dispersion in the slow-light regime of photonic crystal (PhC) waveguides was measured by utilizing integrated Mach-Zehnder interferometer (MZI) structures, and compared with theoretical results obtained from 3D plane-wave calculations. Highly accurate measurements of group-velocity dispersion (GVD), third-order dispersion (TOD) and fourth-order dispersion (FOD) at high group-index (n(g)) values were enabled by minimizing external phase-distortions and increasing signal-to-noise ratio in the MZI. The experimental results for GVD, TOD, and FOD parameters at n(g) approximately 100 were approximately 10(2)ps(2)/mm, approximately 10(4)ps(3)/mm, and approximately 10(5)ps(3)/mm respectively. The results emphasize the importance of taking into consideration the effect of TOD and FOD on pulse broadening in the slow-light regime.
Assefa
Solomon
S
IBM TJ Watson Research Center, Yorktown Heights, NY 10536, USA. sassefa@us.ibm.com
Vlasov
Yurii A
YA
D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D017785:Photons; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity