Polarisation insensitive wavelength de-multiplexer using arrayed waveguide grating and polarisation rotator/splitter

被引：10
|
作者：
Onawa, Y. [1 ,2 ]
Okayama, H. [1 ,2 ]
Shimura, D. [1 ,2 ]
Takahashi, H. [1 ,2 ]
Yaegashi, H. [1 ,2 ]
Sasaki, H. [1 ,2 ]
机构：
[1] Oki Elect Ind Co Ltd, 1-16-8 Chuou, Warabi, Saitama 3358510, Japan
[2] PETRA, Bunkyo Ku, Sumitomo Edogawa Bashi Bldg 7F Sekiguchi 1-20-10, Tokyo 1020014, Japan
来源：
ELECTRONICS LETTERS | 2019年 / 55卷 / 08期
关键词：
optical waveguides; optical design techniques; optical communication equipment; integrated optics; light polarisation; rib waveguides; optical losses; arrayed waveguide gratings; optical beam splitters; optical rotation; optical directional couplers; polarisation insensitive wavelength de-multiplexer; arrayed waveguide grating; polarisation rotator; splitter waveguide device; identical wavelength characteristics; transverse magnetic polarisations; rib structure waveguide; asymmetrical directional coupler; first-order mode; sub-adjacent waveguide; light polarisations; transmission wavelength shift; TE TM polarisations; transverse electric polarisations; channel isolation;
D O I：
10.1049/el.2018.8106
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The authors report the polarisation insensitive operation of an arrayed waveguide grating using a polarisation rotator/splitter (PRS) waveguide device which attains identical wavelength characteristics and optical losses for both transverse electric (TE) and transverse magnetic (TM) polarisations. The proposed PRS device is composed of a rib structure waveguide and an asymmetrical directional coupler (ADC). The rib waveguide converts TM fundamental mode to TE first-order mode. The ADC splits TE first-order mode into the TE fundamental mode propagating in the sub-adjacent waveguide. Experimental results confirm that the proposed device operates independently of light polarisations; channel isolation is nearly 20 dB, and no transmission wavelength shift or polarisation dependent loss are observed between TE and TM polarisations.
引用
收藏
页码：475 / 476
页数：2
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