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SCIENCE CHINA Information Sciences, Volume 61 , Issue 8 : 080407(2018) https://doi.org/10.1007/s11432-018-9504-6

Silicon-based on-chip hybrid (de)multiplexers

Chenlei LI , Hao WU , Ying TAN , Shipeng WANG , Daoxin DAI *
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  • ReceivedJan 3, 2018
  • AcceptedJun 11, 2018
  • PublishedJul 6, 2018
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Abstract


Acknowledgment

This work was supported by National Natural Science Foundation of China (NSFC) (Grant Nos. 61725503, 61422510, 61431166001), and Zhejiang Provincial Natural Science Foundation (Grant No. Z18F050002).


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    Figure 1

    (Color online) Hybrid (de)multiplexing technologies combining more than one techniques.

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    Figure 2

    (Color online) The hybrid WDM-PDM (de)multiplexer consisting of a bi-directional AWG and a polarization diversity circuit. (a) Microscopic image of the fabricated device; (b) measured spectral responses [69]@Copyright 2015 OSA.

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    Figure 3

    (Color online) A 16-channel hybrid PDM-WDM (de)multiplexer. (a) Microscopic image. Measured spectral responses for all the channels of (b) TE- and (c) TM-polarizations [70]@Copyright 2018 IEEE.

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    Figure 4

    (Color online) Fabricated 64-channel hybrid MDM-WDM (de)multiplexer consisting of a four-channel mode (de)multiplexer and four 16-channel AWG (de)multiplexers [82]@Copyright 2014 OSA.

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    Figure 5

    (Color online) Fabricated 64-channel hybrid MDM-WDM (de)multiplexer consisting of a four-channel mode (de)multiplexer and two bi-directional AWG (de)multiplexers with 16 wavelength-channels [83]@Copyright 2015 Wiley.

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    Figure 6

    (Color online) Fabricated hybrid MDM-WDM (de)multiplexer for TM polarization [89]@Copyright 2018 IEEE.

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    Figure 7

    (Color online) Fabricated hybrid MDM-WDM (de)multiplexer for TE polarization [84]@Copyright 2018 OSA.

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    Figure 8

    (Color online) 8-channel hybrid PDM-MDM (de)multiplexer [91]@Copyright 2014 Wiley.

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    Figure 9

    (Color online) Fabricated PIC consisting of an improved 8-channel hybrid PDM-MDM (de)multiplexer [92]@Copyright 2014 OSA.

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    Figure 10

    (Color online) A 10-channel hybrid MDM-PDM (de)multiplexer based on dual-core adiabatic tapers waveguides with dual polarizations [95]@Copyright 2017 Wiley.

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    Figure 11

    (Color online) Measured transmissions at the then output ports (O$_1\sim$O$_{10}$) of the 10-channel hybrid MDM-PDM (de)multiplexer when light is launched from port (a) I$_{1}$, (b) I$_{2}$, (c) I$_{3}$, (d) I$_{4}$, (e) I$_{5}$, (f) I$_{6}$, (g) I$_{7}$, (h) I$_{8}$, (i) I$_{9}$,protect łinebreak (j) I$_{10}$ of the mode multiplexer, respectively [95]@Copyright 2017 Wiley.

  • Table 1   Summary of the reported on-chip (de)multiplexers
    Types Ref. Year ${N_{\rm~TE}}^{\rm~a)}$ ${N_{\rm~TM}}^{\rm~b)}$ $~{N_{w}}^{\rm~c)}~\times\Delta\lambda_{\rm~ch}~$ (nm) $N_{\rm~all}$ Loss (dB) CT (dB) Structure
    WDM+PDM [69] 2015 1 1 $9~\times3.2$ 18 7 $-13$ PSR+AWG
    WDM+PDM [70] 2018 1 1 $8~\times3.2$ 16 3 $<-25$ PSR+MRRs
    WDM+MDM [79] 2014 2 0 $3~\times8$ 6 2.4 $-19.7$ ADCs+MRRs
    WDM+MDM [80] 2016 2 0 $3~\times3$ 6 1 $<-22$ MMI
    WDM+MDM [83] 2015 4 0 $16~\times3.2$ 64 5 $-14$ ADCs+AWG
    WDM+MDM [85] 2014 2 0 $3~\times8$ 6 $<10$ $<-18$ ADCs+MRRs
    WDM+MDM [89] 2018 0 4 $8~\times8$ 32 $<4.5$ $-18$ ADCs+MRRs
    WDM+MDM [84] 2018 4 0 $8~\times3.2$ 32 0.5 – 5 $-16.5$ Dual-core Tapers+MRRs
    MDM+PDM [91] 2014 4 4 – 8 $<3$ $<-17.7$ ADCs+PBS
    MDM+PDM [95] 2018 6 4 – 10 0.2 – 1.8 5 – $-$25 Dual-core Tapers+PBS

    a