V- And W-band microwave generation and modulation using semiconductor lasers at period-one nonlinear dynamics

Chin Hao Tseng, Chun Ting Lin, Sheng Kwang Hwang

Research output: Contribution to journalArticlepeer-review

Abstract

Microwave generation and modulation over the V- and W-bands are investigated using a semiconductor laser subject to both comb-like optical injection and direct modulation. The former not only excites period-one (P1) nonlinear dynamics for tunable microwave generation but also improves the stability and purity of such generated microwaves. The latter upconverts data onto the generated microwaves by superimposing the data effectively only onto the lower oscillation sideband of the P1 dynamics, which prevents the data from dispersion-induced degradation over fiber distribution. As a result, microwaves that are continuously tunable from 40 to 110 GHz with a 3-dB linewidth of less than 1 Hz and with phase noise better than −95 dBc/Hz at 10-kHz offset are generated. A bit-error ratio better than the forward error correction limit, 3.8 × 10−3, is achieved for 12-Gb/s 16-quadrature amplitude modulation data after 25-km fiber distribution.

Original languageEnglish
Pages (from-to)6819-6822
Number of pages4
JournalOptics Letters
Volume45
Issue number24
DOIs
Publication statusPublished - 2020 Dec 15

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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