A Compact Triplexer Based on InP/InGaAsP-MMI Coupler with Channel-Shaped Core Layer for 50G PON

被引：1

作者：

Guo, Fei ^{[1
,2
]}

Lu, Dan ^{[1
,2
]}

Song, Hao ^{[1
,2
]}

Niu, Yueying ^{[1
,2
]}

Zhou, Daibing ^{[1
,2
]}

Zhao, Lingjuan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Key Lab Optoelect Mat & Devices, Beijing 100083, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

来源：

PHOTONICS | 2024年 / 11卷 / 03期

关键词：

multimode interference coupler; wavelength demultiplexer; beam propagation method; WAVELENGTH; DESIGN; RESONATORS;

D O I：

10.3390/photonics11030232

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel wavelength triplexer based on Channel-Shaped Multimode Interference (C-MMI) structures on the InP platform is proposed for multi-channel integration compatibility in a 50G passive optical network (PON) system. Performance analysis of the proposed device is carried out by using the 3D Beam Propagation Method (3D-BPM), which shows excellent properties with insertion loss < 0.5 dB and low crosstalk < -14 dB for the 1342 nm in the Original band (1260-1360 nm), 1490 nm in the Short wavelength band (1460-1530 nm), and 1577 nm in the Long wavelength band (1565-1625 nm), also known as the OSL wavelengths band. Furthermore, the passbands of the three downlink channels of 1342 nm, 1490 nm, and 1577 nm, reach 14 nm, 20 nm, and 64 nm, respectively, which is wide enough to meet the 50G PON optical line terminal (OLT) requirement. Additionally, the proposed device is extremely compact with a total length of only 448 mu m, making it attractive in the monolithic integrated laser chip and OLT packaged module.

引用

页数：9