Tunable Optoelectronic Oscillator Using a Directly Modulated Microsquare Laser
| Autor: | Yong-Zhen Huang, Jin-Long Xiao, Yue-De Yang, Zhi-Xiong Xiao, Ming-Long Liao, Hai-Zhong Weng, Jun-Yuan Han |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Physics::Optics Biasing 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Signal Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Band-pass filter law 0103 physical sciences Phase noise Optoelectronics Frequency offset Electrical and Electronic Engineering 0210 nano-technology business Compatible sideband transmission Microwave |
| Zdroj: | IEEE Photonics Technology Letters. 30:1242-1245 |
| ISSN: | 1941-0174 1041-1135 |
| Popis: | A tunable optoelectronic oscillator (OEO) employing a directly modulated microsquare laser is proposed and experimentally demonstrated without using any external modulator and electrical bandpass filter. In our scheme, the OEO oscillates near the relaxation oscillation frequency at which the microsquare laser has the highest modulation efficiency. Microwave signals with the frequency tuned from 3.51 to 8.16 GHz are generated by tuning the bias current of the microsquare laser. Single sideband phase noise of -112.5 dBc/Hz is obtained at a frequency offset of 10 kHz for the generated 7.48 GHz microwave signal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|