InP-based integrated optical frequency shifter for heterodyne detection applications

We present the design and characterization of an integrated optical frequency shifter based on an IQ modulator featuring standard building blocks from a generic photonic integration Indium Phosphide (InP) foundry. The device is conceived to be used in applications with low bandwidth requirements suc...

Full description

Bibliographic Details
Authors: López-Querol, Pablo, Soria-Gómez, Alicia, Quirce Teja, Ana, Tijero, José Manuel G., Esquivias, Ignacio, Pérez-Serrano, Antonio
Format: article
Publication Date:2024
Country:España
Institution:Universidad de Cantabria (UC)
Repository:UCrea Repositorio Abierto de la Universidad de Cantabria
Language:English
OAI Identifier:oai:repositorio.unican.es:10902/36057
Online Access:https://hdl.handle.net/10902/36057
Access Level:Open access
Keyword:IQ modulator
Frequency shifter
Photonic integrated circuits
Heterodyne detection
Generic integration platform
InP
Description
Summary:We present the design and characterization of an integrated optical frequency shifter based on an IQ modulator featuring standard building blocks from a generic photonic integration Indium Phosphide (InP) foundry. The device is conceived to be used in applications with low bandwidth requirements such as dual-comb spectroscopy or integrated low-cost LiDARs. An initial analytical study of the system was carried out and subsequently validated by simulations. Then, we obtained experimentally the most relevant parameters of the system and evaluated its performance under frequency shifter operation. Good performance up to 250 MHz is achieved, thus proving its suitability for the intended applications