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Fabrication of mode-coupling-receiver chip for lossless optical splitters by femtosecond laser

QING TAO1,2,3, JUE WANG1,2, CHEN HU1,2, BOWEN LU1,2, ZHONGSHENG ZHAI1,2,3, JIAN CHENG1,2, DUN LIU1,2,*

Affiliation

  1. Hubei Key Lab of Manufacture Quality Engineering, Wuhan 430068, China
  2. School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China
  3. Hubei Key Laboratory of Modern Manufacturing Quantity Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, Hubei, P.R. China

Abstract

In this paper, ten 8×1 mode coupling receiver chips are designed and manufactured for lossless optical splitters. The width of input ridge waveguide is 12.25 μm. Spacing between input ridge waveguides is 15.06 μm. The width of input port of tapered ridge waveguide is 210.01 μm. The length of tapered ridge waveguide is 300.41 μm. The width of output multimode ridge waveguide is 50.91 μm. The height of input ridge waveguide is 22.60 μm. The distance between straight waveguide and edge of the multimode tapered waveguide is 4.86 μm. Manufacturing error values are within the design error range. Test results s how that average ins ertion loss ≤13 dB, average return loss ≥50 dB, average directivity>55 dB. Average bit error rate is 10 1.583 10  in signal upstream for every input port. It is very beneficial for next-generation PONs..

Keywords

Mode coupling receiver chip, Lossless splitter, PON.

Citation

QING TAO, JUE WANG, CHEN HU, BOWEN LU, ZHONGSHENG ZHAI, JIAN CHENG, DUN LIU, Fabrication of mode-coupling-receiver chip for lossless optical splitters by femtosecond laser, Optoelectronics and Advanced Materials - Rapid Communications, 13, 1-2, January-February 2019, pp.1-9 (2019).

Submitted at: July 17, 2018

Accepted at: Feb. 12, 2019