Mode-evolution-based silicon-on-insulator 3 dB coupler using fast quasiadiabatic dynamics

被引:35
作者
Hung, Yung-, Jr. [1 ]
Li, Zhong-Ying [2 ]
Chung, Hung-Ching [2 ]
Liang, Fu-Chieh [2 ]
Jung, Ming-Yang [1 ]
Yen, Tzu-Hsiang [1 ]
Tseng, Shuo-Yen [2 ]
机构
[1] Natl Sun Yat Sen Univ, Dept Photon, 70 Lien Hai Rd, Kaohsiung 804, Taiwan
[2] Natl Cheng Kung Univ, Dept Photon, 1 Univ Rd, Tainan 701, Taiwan
关键词
DIRECTIONAL COUPLER; TRANSFORMER; BANDWIDTH; SPLITTER; SWITCH;
D O I
10.1364/OL.44.000815
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report a 2 x 2 broadband and fabrication tolerant mode-evolution-based 3 dB coupler based on silicon-oninsulator rib waveguides. The operating principle of the coupler is based on the adiabatic evolution of local eigenmodes. The key element of the device is an adiabatically tapered mode evolution region, which converts two dissimilar waveguides into two identical waveguides. Contrary to conventional designs using a linear taper function where the device adiabaticity is uneven during evolution, we use the fast quasiadiabatic approach to homogenize the adiabaticity of the device, leading to a shortcut to adiabaticity. Devices with an optimized taper region of 26.3 mu m are designed and fabricated in a complementary metal-oxide-semiconductor compatible process with 193 nm deep ultraviolet lithography. The measured devices exhibit a broadband 3 dB +/- 0.5 dB splitting within a bandwidth of 100 nm, uniformly across a 200-mm wafer, showing good tolerance against fabrication variations. (C) 2019 Optical Society of America
引用
收藏
页码:815 / 818
页数:4
相关论文
共 24 条
[1]   Broadband Silicon-On-Insulator directional couplers using a combination of straight and curved waveguide sections [J].
Chen, George F. R. ;
Ong, Jun Rong ;
Ang, Thomas Y. L. ;
Lim, Soon Thor ;
Png, Ching Eng ;
Tan, Dawn T. H. .
SCIENTIFIC REPORTS, 2017, 7
[2]   Compact Eight-Channel Thermally Reconfigurable Optical Add/Drop Multiplexers on Silicon [J].
Chen, Sitao ;
Shi, Yaocheng ;
He, Sailing ;
Dai, Daoxin .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2016, 28 (17) :1874-1877
[3]   Low-loss and broadband 2 x 2 silicon thermo-optic Mach-Zehnder switch with bent directional couplers [J].
Chen, Sitao ;
Shi, Yaocheng ;
He, Sailing ;
Dai, Daoxin .
OPTICS LETTERS, 2016, 41 (04) :836-839
[4]   Ultrashort and broadband silicon polarization splitter-rotator using fast quasiadiabatic dynamics [J].
Chung, Hung-Ching ;
Tseng, Shuo-Yen .
OPTICS EXPRESS, 2018, 26 (08) :9655-9665
[5]   Short and broadband silicon asymmetric Y-junction two-mode (de)multiplexer using fast quasiadiabatic dynamics [J].
Chung, Hung-Ching ;
Lee, Kun-Sheng ;
Tseng, Shuo-Yen .
OPTICS EXPRESS, 2017, 25 (12) :13626-13634
[6]   Broadband optical waveguide couplers with arbitrary coupling ratios designed using a genetic algorithm [J].
Fu, Po-Han ;
Tu, Yi-Chou ;
Huang, Ding-Wei .
OPTICS EXPRESS, 2016, 24 (26) :30547-30561
[7]   Colorless directional coupler with dispersion engineered sub-wavelength structure [J].
Halir, R. ;
Maese-Novo, A. ;
Ortega-Monux, A. ;
Molina-Fernandez, I. ;
Wangueemert-Perez, J. G. ;
Cheben, P. ;
Xu, D. -X. ;
Schmid, J. H. ;
Janz, S. .
OPTICS EXPRESS, 2012, 20 (12) :13470-13477
[8]   Ideal, constant-loss nanophotonic mode converter using a Lagrangian approach [J].
Horth, Alexandre ;
Cheben, Pavel ;
Schmid, Jens H. ;
Kashyap, Raman ;
Quitoriano, Nathaniel J. .
OPTICS EXPRESS, 2016, 24 (06) :6680-6688
[9]   Laser diodes with integrated spot-size transformer as low-cost optical transmitter elements for telecommunications [J].
Hubner, B ;
Vollrath, G ;
Ries, R ;
Greus, C ;
Janning, H ;
Ronneberg, E ;
Kuphal, E ;
Kempf, B ;
Gobel, R ;
Fiedler, F ;
Zengerle, R ;
Burkhard, H .
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1997, 3 (06) :1372-1383
[10]   Broadband silicon photonic directional coupler using asymmetric-waveguide based phase control [J].
Lu, Zeqin ;
Yun, Han ;
Wang, Yun ;
Chen, Zhitian ;
Zhang, Fan ;
Jaeger, Nicolas A. F. ;
Chrostowski, Lukas .
OPTICS EXPRESS, 2015, 23 (03) :3795-3806