Author(s): Chen, M (Chen, Man); Zhao, ZP (Zhao, Zeping); Shen, ZY (Shen, Zheyuan); Feng, HL (Feng, Haolei); Wang, HY (Wang, Hanyu); Hu, ZJ (Hu, Zijian); Liu, JG (Liu, Jianguo)

Source: OPTICS EXPRESS Volume: 32 Issue: 6  Pages: 10230-10240  DOI: 10.1364/OE.517803  Published Date: 2024 MAR 11 

Abstract: A four -channel ultrawideband photodetector (PD) module with a size of 26.1 mm x 33.2 mm x 8.5 mm has been demonstrated in our laboratory. We propose a method to improve the bandwidth of the PD module based on compensating parasitic parameters by dual resistance regulation on the P and N terminals of the PD chip. A small signal equivalent circuit model with package matching network is established for the PD module, and the effectiveness of the proposed method and the accuracy of the model are verified by experiments. A four -channel photodetector module with a -3 dB bandwidth of up to 67 GHz is fabricated by using photodetector chips with -3 dB bandwidths of 46 GHz, and the responsivity is up to 0.50A/W. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Accession Number: WOS:001208533800004

PubMed ID: 38571239

ISSN: 1094-4087