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Novel low‐loss wide‐angle Y‐junctions of optical waveguides with graded‐index profiles
Author(s) -
Yongjun Yang,
Fushen Chen
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20078
Subject(s) - beam propagation method , branching (polymer chemistry) , optics , microwave , materials science , optical power , refractive index , physics , laser , quantum mechanics , composite material
A low‐loss wide‐angle Y‐junction with graded‐index optical waveguides which can change the optical propagation direction, is proposed. The optical power is divided equally into two branching waveguides with a wide angle. Device performance is examined numerically by the finite‐difference beam propagation method (FDBPM). The simulated results show that the output optical power can be more than 96%, even if a branching angle is as large as 53.1°. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 156–159, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20078