Abstract

High-efficiency and low loss constant periodicity gratings have been fabricated and evaluated on single-mode planar optical wave guides. The most important parameters that will affect the lens performance are the coupling coefficient and the Q (or ρ) factor. The coupling coefficient has been found to be given by Kc = Δneff/(λ0/2). Investigation of the Δneff value has shown that for small groove heights larger Δneff can be obtained for CeO2 deposited grooves than for etched grooves. In grating structures where Q and ρ factors are high, the effect of the higher orders of diffraction is negligible, and there is a good agreement between the experimentally measured characteristics and the prediction from the coupled mode theory. However, minor variations in the fabrication processes (e.g., Δn ≃ 0.02) may cause the diffraction efficiency to vary as much as 15%, while the angular field of view does not seem to be affected by process variations.

© 1984 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Effect of fabrication tolerances on the diffraction performance of chirped grating lenses on planar optical waveguides

Jean-Marc P. Delavaux and William S. C. Chang
Appl. Opt. 24(2) 227-231 (1985)

Comparison of the experimental and theoretical diffraction characteristics of transmission gratings on planar dielectric waveguides

Jean-Marc P. Delavaux, William S. C. Chang, and M. G. Moharam
Appl. Opt. 24(2) 221-226 (1985)

Machined immersion grating with theoretically predicted diffraction efficiency

Yuji Ikeda, Naoto Kobayashi, Yuki Sarugaku, Takashi Sukegawa, Shigeru Sugiyama, Sayumi Kaji, Kenshi Nakanishi, Sohei Kondo, Chikako Yasui, Hirokazu Kataza, Takao Nakagawa, and Hideyo Kawakita
Appl. Opt. 54(16) 5193-5202 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription