A Modulator-Free Photonic Triangular Pulse Generator Based on Semiconductor Lasers
| Autor: | Pei Zhou, Qingshui Guo, Fangzheng Zhang, Shilong Pan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Pulse generator 02 engineering and technology Fundamental frequency Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Semiconductor laser theory 020210 optoelectronics & photonics Modulation law 0202 electrical engineering electronic engineering information engineering Harmonic Optoelectronics Pulse wave Electrical and Electronic Engineering Photonics business |
| Zdroj: | IEEE Photonics Technology Letters. 30:1317-1320 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2018.2845850 |
| Popis: | A modulator-free photonic triangular pulse generator is proposed and demonstrated based on two semiconductor lasers. In this method, a direct-modulated semiconductor laser is employed to generate a fundamental frequency component. Meanwhile, a third-order harmonic signal is generated by external optical injection together with 1/3 subharmonic microwave modulation of another semiconductor laser. After properly setting the amplitude and time delay between the fundamental and third-order harmonics, the combined signal composes a triangular waveform. The generation of a 11.4-GHz triangular pulse train is experimentally demonstrated. Without using any modulator, the proposed approach is a promising method for triangular pulse generation with low cost and simple structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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