Broadband Polarization Splitter-Rotator and the Application in WDM Receiver
Polarization sensitivity is a severe problem in photonic integration devices and chips based on the high-index contrast Si/SiO 2 system. In this paper, a broadband silicon polarization splitter-rotator (PSR) comprised of a bi-level taper and a counter-tapered coupler is proposed with a large fabrica...
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| Veröffentlicht in: | IEEE photonics journal 2019-02, Vol.11 (1), p.1-10 |
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| creator | Zhao, Yingxuan Qiu, Chao Wu, Aimin Huang, Haiyang Li, Jun Sheng, Zhen Li, Wei Wang, Xi Gan, Fuwan |
| description | Polarization sensitivity is a severe problem in photonic integration devices and chips based on the high-index contrast Si/SiO 2 system. In this paper, a broadband silicon polarization splitter-rotator (PSR) comprised of a bi-level taper and a counter-tapered coupler is proposed with a large fabrication tolerance. The measured insertion loss is lower than 0.7 dB/0.73 dB for the wavelength range from 1470 to 1580 nm with a crosstalk lower than -12.1 dB/-14.7 dB for TE and TM polarization input, respectively. By integrating the PSR with silicon arrayed waveguide gratings and germanium photodetectors (PDs) on a single chip, a polarization-insensitive wavelength-division-multiplexing (WDM) receiver is demonstrated with a polarization-dependent loss as low as 1.21 dB. High-speed operations are also achieved with clear eyes at 10 Gb/s. |
| doi_str_mv | 10.1109/JPHOT.2018.2886268 |
| format | Article |
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In this paper, a broadband silicon polarization splitter-rotator (PSR) comprised of a bi-level taper and a counter-tapered coupler is proposed with a large fabrication tolerance. The measured insertion loss is lower than 0.7 dB/0.73 dB for the wavelength range from 1470 to 1580 nm with a crosstalk lower than -12.1 dB/-14.7 dB for TE and TM polarization input, respectively. By integrating the PSR with silicon arrayed waveguide gratings and germanium photodetectors (PDs) on a single chip, a polarization-insensitive wavelength-division-multiplexing (WDM) receiver is demonstrated with a polarization-dependent loss as low as 1.21 dB. 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High-speed operations are also achieved with clear eyes at 10 Gb/s.</description><subject>Broadband</subject><subject>Couplers</subject><subject>Crosstalk</subject><subject>Fabrication</subject><subject>Insertion loss</subject><subject>integrated photonic chips</subject><subject>Optical waveguides</subject><subject>Photonics</subject><subject>Polarization</subject><subject>Polarization splitter-rotator</subject><subject>Receivers</subject><subject>Silicon</subject><subject>Silicon dioxide</subject><subject>silicon photonics</subject><subject>Wavelength division multiplexing</subject><issn>1943-0655</issn><issn>1943-0647</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNo9kVtPAjEQhTdGExH9A_qyic-L025v-4h4AcVAEONj0267WoIUu8VEf70LS3iayfScM518SXKJoIcQFDdP0-Fk3sOARA8LwTATR0kHFSTPgBF-fOgpPU3O6noBwApEi07yfBu8MlqtTDr1SxXcn4rOr9LX9dLFaEM281FFH9KtIn7atL9uXspW5Fbp-91LOrOldT82nCcnlVrW9mJfu8nbw_18MMzGk8fRoD_OSgI0ZjonBSOo0EZTSwynBnTB80oQwg1TlOeUqYpXABUVeQGMCU2Y5RZ0uT0t7yajNtd4tZDr4L5U-JVeObkb-PAhVYiuXFppRIWF4aZxGcJFKSjGSlNeAgZWad1kXbdZ6-C_N7aOcuE3YdV8X2LEsEBAARoVblVl8HUdbHXYikBuAcgdALkFIPcAGtNVa3LW2oNBUI45gfwfwaaAMA</recordid><startdate>20190201</startdate><enddate>20190201</enddate><creator>Zhao, Yingxuan</creator><creator>Qiu, Chao</creator><creator>Wu, Aimin</creator><creator>Huang, Haiyang</creator><creator>Li, Jun</creator><creator>Sheng, Zhen</creator><creator>Li, Wei</creator><creator>Wang, Xi</creator><creator>Gan, Fuwan</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| source | IEEE Open Access Journals; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Broadband Couplers Crosstalk Fabrication Insertion loss integrated photonic chips Optical waveguides Photonics Polarization Polarization splitter-rotator Receivers Silicon Silicon dioxide silicon photonics Wavelength division multiplexing |
| title | Broadband Polarization Splitter-Rotator and the Application in WDM Receiver |
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