Abstract
There are two principal benefits to using planar lightwave circuit (PLC) based arrayed waveguide gratings (AWG) in dense WDM systems: (1) cost effectively enabling high channel counts in devices (>40), and (2) allowing mass production in a mode similar to that in the IC industry. However, stress introduced birefringence in wave guides causes polarization dependent wavelength shifts (PDW), which remains a key issue for yield improvement of AWGs. Inserting a polyimide half-waveplate in the center of the grating mini-mizes PDW, 1 but this method requires additional process steps and generates excess insertion loss.
© 2002 Optical Society of America
PDF ArticleMore Like This
F. Zhong, F. Parhami, Z. Zhou, and J. Bornstein
FJ2 Optical Fiber Communication Conference (OFC) 2003
Shin Kamei, Motohaya Ishii, Takeshi Kitagawa, Mikitaka Itoh, and Yoshinori Hibino
TuK1 Optical Fiber Communication Conference (OFC) 2002
S. Janz, M. Pearson, B. Lamontagne, L. Erickson, A. Delâge, P. Cheben, D.-X. Xu, M. Gao, A. Balakrishnan, J. Miller, and S. Charbonneau
TuK2 Optical Fiber Communication Conference (OFC) 2002