Thermo-optic control of the longitudinal radiation angle in a silicon-based optical phased array

被引：60

作者：

Kim, Seong-Hwan ^{[1
]}

You, Jong-Bum ^{[1
]}

Ha, Yun-Gi ^{[1
]}

Kang, Geumbong ^{[1
]}

Lee, Dae-Seong ^{[1
]}

Yoon, Hyeonho ^{[1
]}

Yoo, Dong-Eun ^{[2
]}

Lee, Dong-Wook ^{[2
]}

Yu, Kyoungsik ^{[1
]}

Youn, Chan-Hyun ^{[1
]}

Park, Hyo-Hoon ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Sch Elect Engn, Yuseong 305701, Daejeon, South Korea

[2] Natl Nanofab Ctr NNFC, Yuseong 305806, Daejeon, South Korea

来源：

OPTICS LETTERS | 2019年 / 44卷 / 02期

关键词：

ULTRA-BROAD-BAND; JUNCTION;

D O I：

10.1364/OL.44.000411

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate longitudinal beam-steering with a 1 x 16 silicon optical phased array (OPA) using a monochromatic light source and thermo-optic control of the refractive index in the grating radiator region. The refractive index is controlled by forming a series of n-i-n heaters, placing i-regions in each radiator of the OPA. When the biased voltage in the heaters is increased, the refractive index of the radiator region is increased by the thermo-optic effect, and the longitudinal radiation angle is changed according to the Bragg condition. The transversal beans-steering is accomplished by phase control with the phase shifters, which are devised with a p-i-n diode using the electro-optic effect. With these electro-optic p-i-n phase shifters and n-i-n thermo-optic radiators, we achieve a relatively wide 2D beans-steering in a range of 10.0 degrees/45.4 degrees in the longitudinal/transversal directions with a 1.55 mu m light source. The tuning efficiency is 0.016 degrees/mW in the longitudinal beam-steering. (C) 2019 Optical Society of America

引用

页码：411 / 414

页数：4

共 20 条

[1] Monolithic optical phased-array transceiver in a standard SOI CMOS process [J].

Abediasl, Hooman ;

Hashemi, Hossein .

OPTICS EXPRESS, 2015, 23 (05) :6509-6519

[2]

Dewanjee A, 2016, IEEE PHOTON CONF, P414, DOI 10.1109/IPCon.2016.7831163

[3] Demonstration of a compact bilayer inverse taper coupler for Si-photonics with enhanced polarization insensitivity [J].

Dewanjee, Arnab ;

Caspers, Jan Niklas ;

Aitchison, James Stewart ;

Mojahedi, Mo. .

OPTICS EXPRESS, 2016, 24 (25) :28194-28203

[4] Two-dimensional free-space beam steering with an optical phased array on silicon-on-insulator [J].

Doylend, J. K. ;

Heck, M. J. R. ;

Bovington, J. T. ;

Peters, J. D. ;

Coldren, L. A. ;

Bowers, J. E. .

OPTICS EXPRESS, 2011, 19 (22) :21595-21604

[5]

Guo W., 2013, OPT FIB COMM C EXP

[6] Highly integrated optical phased arrays: photonic integrated circuits for optical beam shaping and beam steering [J].

Heck, Martijn J. R. .

NANOPHOTONICS, 2017, 6 (01) :93-107

[7] Fully integrated hybrid silicon two dimensional beam scanner [J].

Hulme, J. C. ;

Doylend, J. K. ;

Heck, M. J. R. ;

Peters, J. D. ;

Davenport, M. L. ;

Bovington, J. T. ;

Coldren, L. A. ;

Bowers, J. E. .

OPTICS EXPRESS, 2015, 23 (05) :5861-5874

[8] Fully integrated hybrid silicon free-space beam steering source with 32 channel phased array [J].

Hulme, J. C. ;

Doylend, J. K. ;

Heck, M. J. R. ;

Peters, J. D. ;

Davenport, M. L. ;

Bovington, J. T. ;

Coldren, L. A. ;

Bowers, J. E. .

SMART PHOTONIC AND OPTOELECTRONIC INTEGRATED CIRCUITS XVI, 2014, 8989

[9] High-resolution aliasing-free optical beam steering [J].

Hutchison, David N. ;

Sun, Jie ;

Doylend, Jonathan K. ;

Kumar, Ranjeet ;

Heck, John ;

Kim, Woosung ;

Phare, Christopher T. ;

Feshali, Avi ;

Rong, Haisheng .

OPTICA, 2016, 3 (08) :887-890

[10] Widely wavelength-tunable DFB laser array integrated with funnel combiner [J].

Ishii, Hiroyuki ;

Kasaya, Kazuo ;

Oohashi, Hiromi ;

Shibata, Yasuo ;

Yasaka, Hiroshi ;

Okamoto, Katsunari .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2007, 13 (05) :1089-1094

← 1 2 →