An all-fiber polarization maintaining high-power laser system operating at 1.7 μm based on the Ramaninduced soliton self-frequency shifting effect is demonstrated. The entirely fiberized system is built by erbiumdope...An all-fiber polarization maintaining high-power laser system operating at 1.7 μm based on the Ramaninduced soliton self-frequency shifting effect is demonstrated. The entirely fiberized system is built by erbiumdoped oscillator and two-stage amplifiers with polarization maintaining commercial silica fibers and devices, which can provide robust and stable soliton generation. High-power soliton laser with the average power of 0.28 W,the repetition rate of 42.7 MHz, and pulse duration of 515 fs is generated directly from the main amplifier.Our experiment provides a feasible method for high-power all-fiber polarization maintaining femtosecond laser generation working at 1.7 μm.展开更多
Chirp-rate-tunable microwave waveforms(CTMWs)with dynamically tunable parameters are of basic interest to many practical applications.Recently,photonic generation of microwave signals has made their bandwidths wider a...Chirp-rate-tunable microwave waveforms(CTMWs)with dynamically tunable parameters are of basic interest to many practical applications.Recently,photonic generation of microwave signals has made their bandwidths wider and more convenient for optical fiber transmission.An all-optical method for generation of multiband CTMWs is proposed and demonstrated on all-fiber architecture,relying on dual temporal cavity solitons with agile repetition rate.In the experiment,the triangular optical chirp microwave waveforms with bandwidth above0.45 GHz(ranging from 1.45 GHz to 1.9 GHz)are obtained,and the chirp rate reaches 0.9 GHz/ms.The reconfigurability is also demonstrated by adjusting the control signal.This all-optical approach provides a technical basis for compact,multi-band reconfigurable microwave photonics transmission and reception systems.展开更多
基金Supported by the National Natural Science Foundation of China (Grant Nos. 10225417 and 61675009)the Natural Science Foundation of Beijing Municipality (Grant Nos. 4204091 and KZ201910005006)the China Postdoctoral Science Foundation (Grant No. 212423)。
文摘An all-fiber polarization maintaining high-power laser system operating at 1.7 μm based on the Ramaninduced soliton self-frequency shifting effect is demonstrated. The entirely fiberized system is built by erbiumdoped oscillator and two-stage amplifiers with polarization maintaining commercial silica fibers and devices, which can provide robust and stable soliton generation. High-power soliton laser with the average power of 0.28 W,the repetition rate of 42.7 MHz, and pulse duration of 515 fs is generated directly from the main amplifier.Our experiment provides a feasible method for high-power all-fiber polarization maintaining femtosecond laser generation working at 1.7 μm.
基金the National Natural Science Foundation of China(Grant Nos.61675009 and 61325021)the Key Program of Beijing Municipal Natural Science Foundation(Grant No.KZ201910005006)。
文摘Chirp-rate-tunable microwave waveforms(CTMWs)with dynamically tunable parameters are of basic interest to many practical applications.Recently,photonic generation of microwave signals has made their bandwidths wider and more convenient for optical fiber transmission.An all-optical method for generation of multiband CTMWs is proposed and demonstrated on all-fiber architecture,relying on dual temporal cavity solitons with agile repetition rate.In the experiment,the triangular optical chirp microwave waveforms with bandwidth above0.45 GHz(ranging from 1.45 GHz to 1.9 GHz)are obtained,and the chirp rate reaches 0.9 GHz/ms.The reconfigurability is also demonstrated by adjusting the control signal.This all-optical approach provides a technical basis for compact,multi-band reconfigurable microwave photonics transmission and reception systems.
