Open AccessHigh-power symmetric-connected uni-traveling-carrier photodiode array integrated with sub-wavelength gratings based beam-splitter
Author(s) -
Jiarui Fei,
Yongqing Huang,
Wenjing Fang,
Tao Liu,
Xiaofeng Duan,
Kai Li,
Xiaomin Ren
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.021726
Subject(s) - photodiode , optics , materials science , optoelectronics , wavelength , beam splitter , bandwidth (computing) , splitter , physics , telecommunications , computer science , laser
We present a two-element back-illuminated symmetric-connected uni-traveling-carrier photodiode array (SC-PDA) integrated with sub-wavelength-gratings based beam-splitter (SWGs-BS) for high power optoelectronic applications. The SC-PDA with SWGs-BS, a top-illuminated SC-PDA and a single PD were fabricated and tested. The proposed SC-PDA with SWGs-BS demonstrates a 3dB bandwidth of 23.8GHz@60mA, a saturation current of 87.9mA@12GHz and a maximum output RF power of ~16dBm@12GHz. Compared to the top-illuminated SC-PDA and the single PD, the proposed SC-PDA with SWGs-BS achieved high-power handling capability at low coupling complexity and requires no phase-matching techniques in the system.