Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 38,
  • Issue 19,
  • pp. 5500-5508
  • (2020)

Reconfigurable Identical and Complementary Chirp Dual-LFM Signal Generation Subjected to Dual-Beam Injection in a DFB Laser

Not Accessible

Your library or personal account may give you access

Abstract

A photonic approach for identical and complementary chirp dual-linear frequency modulation (LFM) signal generation using an optical injection in a distributed feedback (DFB) laser is proposed and experimentally demonstrated. The proposed scheme is based on the redshift of the emission frequency in the DFB laser, and the nonlinear dynamics in the periodic oscillation of the DFB laser subjected to an optical injection. In the proposed scheme, two optical beams from master lasers, one with varying optical power and another with constant optical power, are injected to the slave laser, a DFB laser. The redshift of the mode in slave laser is due to the injection of the beam with varying optical power, which changes the frequency detuning of the injected beams and the mode of slave laser. Hence, a dual-LFM signal with a large time-bandwidth product (TBWP) is observed. Whether two beams are injected to the slave laser with positive frequency detunings or opposite frequency detunings, dual-LFM signal with the combinations of linearly increasing or/and decreasing frequency is obtained. With the proposed scheme, identical and complementary chirp dual-LFM signals with the same period of 1.3 μs have been obtained. The measured bandwidths for both LFM signals are 7 GHz (LFM1: 16.0-23.0 GHZ; LFM2: 25.0-32.0 GHz) with a TBWP of 9100. The generated dual-LFM signal has flexibility in tuning the center frequency and reconfiguring different IEEE radar bands.

PDF Article
More Like This
Dual-linear chirp microwave signal generation by using single-beam injection to a DFB semiconductor laser and optical heterodyne technique

YanHong Jin, XiaoDong Lin, ZhengMao Wu, DianZou Yue, FengLing Zhang, Li Zhang, ZaiFu Jiang, and GuangQiong Xia
Opt. Express 30(12) 21698-21709 (2022)

Bandwidth-enhanced LFM waveform generator based on dynamic control of an optically injected semiconductor laser

Pei Zhou, Jian Zhu, Renheng Zhang, and Nianqiang Li
Opt. Lett. 47(15) 3864-3867 (2022)

Photonic generation of tunable dual-chirp microwave waveforms using a dual-beam optically injected semiconductor laser

Pei Zhou, Hao Chen, Nianqiang Li, Renheng Zhang, and Shilong Pan
Opt. Lett. 45(6) 1342-1345 (2020)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved