论文信息 - Optical directional couplers with weighted coupling

Optical directional couplers with weighted coupling

We have fabricated optical directional couplers using titanium‐diffused waveguides for which the coupling strength is carefully weighted along the device. With a Hamming function weighting, −25‐dB transfer response sidelobes have been obtained, a 17‐dB reduction over the uniform coupling case. Sidelobe reduction results in a significant increase in the performance of directional coupler filters and switches.

R. Alferness | Rodney C. Alferness

[1] Amnon Yariv,et al. Integrated Optics , 2019, The Microflow Cytometer.

[2] Herwig Kogelnik,et al. Electro‐optically switched coupler with stepped Δβ reversal using Ti‐diffused LiNbO3 waveguides , 1976 .

[3] E. A. J. Marcatili,et al. Dielectric rectangular waveguide and directional coupler for integrated optics , 1969 .

[4] Rodney C. Alferness,et al. Filter characteristics of codirectionally coupled waveguides with weighted coupling , 1978 .

[5] M. Werner,et al. Electrically switched optical directional coupler: Cobra , 1975 .

[6] I. Kaminow,et al. Metal‐diffused optical waveguides in LiNbO3 , 1974 .

[7] P. Cross,et al. Efficient optical waveguide switch/amplitude modulator. , 1978, Optics letters.