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Multimode interference wavelength multi/demultiplexer for 1310 and 1550 nm operation based on BCB 4024-40 photodefinable polymer

Ibrahim, Mohd Haniff and Mohd Kassim, Norazan and Mohammad, Abu Bakar and Chin, Mee-Koy and Lee, Shuh Ying (2007) Multimode interference wavelength multi/demultiplexer for 1310 and 1550 nm operation based on BCB 4024-40 photodefinable polymer. Optics Communication, 273 (5). pp. 383-388. ISSN 0030-4018

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Official URL: http://dx.doi.org/10.1016/j.optcom.2007.01.006

Abstract

A 1310 and 1550 nm coarse wavelength multi/demultiplexer based on benzocyclobutene (BCB 4024-40) polymer is demonstrated for the first time. The device is designed based on a combination of general interference and paired interference mechanisms of multimode interference (MMI). It is fabricated on BK7 glass substrate with a thin layer of SiO2 as cover. A cost effective chemical etching technique is used in the fabrication process to take advantage of the photosensitive nature of the polymer. The device length was significantly reduced by adopting the restricted multimode interference scheme, lower beat length ratio and cascaded MMI couplers. The measured crosstalk at 1310 nm was 14.4 dB and at 1550 nm was 20.6 dB. The measured insertion loss is around 3.2–3.5 dB for both ports.

Item Type:Article
Uncontrolled Keywords:Wavelength multi/demultiplexer; Benzocyclobutene polymer; Chemical etching technique; Multimode interference; Polymer optical waveguide
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:6189
Deposited By: Mohd Haniff Ibrahim
Deposited On:28 Aug 2008 02:20
Last Modified:28 Aug 2008 02:20

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