Modeling for optical feedback laser diode operating in period-one oscillation and its application

Authors

Bin Liu, University of Wollongong
Yuxi Ruan, University of WollongongFollow
Yanguang Yu, University of WollongongFollow
Qinghua Guo, University of WollongongFollow
Jiangtao Xi, University of WollongongFollow
Jun Tong, University of WollongongFollow

RIS ID

133740

Publication Details

B. Liu, Y. Ruan, Y. Yu, Q. Guo, J. Xi & J. Tong, "Modeling for optical feedback laser diode operating in period-one oscillation and its application," Optics Express, vol. 27, (4) pp. 4090-4104, 2019.

Abstract

An optical feedback laser diode (OFLD) operating in period-one oscillation (POO) with a moving external target is investigated by exploring its potential sensing capability. First, the modeling of an OFLD-POO sensing system is presented. An analytical expression is derived for OFLD-POO sensing signal, from which a new displacement measurement method is developed. The proposed sensing model is verified by the well-known Lang-Kobayashi equations used to describe the dynamic behavior of a laser with optical feedback. Then, an experimental OFLD-POO system is built in order to demonstrate an application example for displacement sensing. The measurement results show that the OFLD-POO sensing system can achieve displacement measurement with large measurement range, high sensitivity, and resolution.