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Low loss 1x2 optical coupler based on cosine s-bend with segmented waveguides

Yulianti, I. and Mohd. Supa'at, Abu Sahmah and Idrus Suta, Sevia Mahdaliza and Ridwanto, M. and Al-hetar, A. M. (2011) Low loss 1x2 optical coupler based on cosine s-bend with segmented waveguides. In: AIP Conference Proceedings. American Institute of Physics, pp. 245-248. ISBN 978-073540897-5

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Official URL: http://dx.doi.org/10.1063/1.3586994


This paper presents an optimization of 1x2 polymer Y-junction optical coupler. The optimized optical coupler comprises straight polymer waveguide as the input waveguide, tapered waveguide, modified cosine S-bend and linear waveguide. At the branching point, N short waveguides with small width are introduced to reduce evanescent field. At operating wavelength of 1550 nm the excess loss of the coupler is ~0.18 dB. In term of polarization dependence loss (PDL), the proposed coupler also shows a good performance with PDL value of less than 0.015 dB for wavelength range of 1470 nm-1550 nm. The proposed coupler could reduce excess loss more than 25% compared to conventional Y junction optical coupler.

Item Type:Book Section
Uncontrolled Keywords:excess loss, optical coupler, polarization insensitive, segmented waveguide
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:29260
Deposited By: Liza Porijo
Deposited On:05 Mar 2013 08:37
Last Modified:05 Feb 2017 00:11

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