Open AccessInP-based compact transversal filter for monolithically integrated light source array
Author(s) -
Yuta Ueda,
Takeshi Fujisawa,
Kenichi Takahata,
Masaki Kobayashi,
H. Ishii
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.007844
Subject(s) - multiplexer , optics , materials science , transversal (combinatorics) , interference (communication) , wavelength , filter (signal processing) , optoelectronics , optical filter , ethernet , fabrication , multiplexing , wavelength division multiplexing , physics , electronic engineering , computer science , telecommunications , electrical engineering , engineering , medicine , mathematical analysis , channel (broadcasting) , computer network , mathematics , alternative medicine , pathology
We developed an InP-based 4x1 transversal filter (TF) with multi-mode interference couplers (MMIs) as a compact wavelength multiplexer (MUX) 1700 μm x 400 μm in size. Furthermore, we converted the MMI-based TF to a reflection type to obtain an ultra-compact MUX of only 900 μm x 50 μm. These MUXs are made with a simple fabrication process and show a satisfactory wavelength filtering operation as MUXs of monolithically integrated light source arrays, for example, for 100G bit Ethernet.