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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 20, Iss. 4 — Apr. 1, 2002
  • pp: 675–

Multimode Interference Photonic Switches (MIPS)

Shuichi Nagai, Goh Morishima, Hirokazu Inayoshi, and Katsuyuki Utaka

Journal of Lightwave Technology, Vol. 20, Issue 4, pp. 675- (2002)


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Abstract

The switching characteristics of multimode interference photonic switches (MIPS) are analyzed by wide-angle finite difference beam propagation method (FD-BPM). As a result, it is found that the MIPS with a multimode interference (MMI) length of 599 µm can switch the output light polarization insensitively with a crosstalk of less than -20dB for a wavelength range of 70nm. These analyses show that the MIPS can also have a 3-dB coupler function. Experimentally,an InGaAsP/InP 1 × 2 MIPS with a thicker InP cladding layer was fabricated and exhibited switching operation with crosstalks of -8 dB and -10 dB at 0 and 20 mA current injections,respectively. For a 2 × 2 MIPS with a thinner InP cladding layer, better switching characteristics with a crosstalk of -13 dB and an extinction ratio of 17 dB were realized.

[IEEE ]

Citation
Shuichi Nagai, Goh Morishima, Hirokazu Inayoshi, and Katsuyuki Utaka, "Multimode Interference Photonic Switches (MIPS)," J. Lightwave Technol. 20, 675- (2002)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-20-4-675

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