Study on the characteristic and application of DFB semiconductor lasers under optical injection for microwave photonics

Tao Pu; Wei wei Wang

doi:10.1117/12.2296268

10 January 2018 Study on the characteristic and application of DFB semiconductor lasers under optical injection for microwave photonics

Tao Pu, Wei wei Wang

Author Affiliations +

Proceedings Volume 10617, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing; 1061702 (2018) https://doi.org/10.1117/12.2296268
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

In order to apply optical injection effect in Microwave Photonics system, The red-shift effect of the cavity mode of the DFB semiconductor laser under single-frequency optical injection is studied experimentally, and the red-shift curve of the cavity mode is measured. The wavelength-selective amplification property of the DFB semiconductor laser under multi-frequency optical injection is also investigated, and the gain curves for the injected signals in different injection ratios are measured in the experiment. A novel and simple structure to implement a single-passband MPF with wideband tunability based on the wavelength-selective amplification of a DFB semiconductor laser under optical injection is proposed and experimentally demonstrated. MPFs with center frequency tuned from 13 to 41 GHz are realized in the experiment. A wideband and frequency-tunable optoelectronic oscillator based on a directly modulated distributed feedback (DFB) semiconductor laser under optical injection is proposed and experimentally demonstrated. By optical injection, the relaxation oscillation frequency of the DFB laser is enhanced and its high modulation efficiency makes the loop oscillate without the necessary of the electrical filter. An experiment is performed; microwave signals with frequency tuned from 5.98 to 15.22 GHz are generated by adjusting the injection ratio and frequency detuning between the master and slave lasers.

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Tao Pu and Wei wei Wang "Study on the characteristic and application of DFB semiconductor lasers under optical injection for microwave photonics", Proc. SPIE 10617, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 1061702 (10 January 2018); https://doi.org/10.1117/12.2296268

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KEYWORDS

Semiconductor lasers

Laser optics

Microwave radiation

Microwave photonics

Modulation

Optoelectronics

Oscillators

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