Frequency comb generation in a silicon ring resonator modulator.

Autor: Demirtzioglou I, Lacava C, Bottrill KRH, Thomson DJ, Reed GT, Richardson DJ, Petropoulos P
Jazyk: angličtina
Zdroj: Optics express [Opt Express] 2018 Jan 22; Vol. 26 (2), pp. 790-796.
DOI: 10.1364/OE.26.000790
Abstrakt: We report on the generation of an optical comb of highly uniform in power frequency lines (variation less than 0.7 dB) using a silicon ring resonator modulator. A characterization involving the measurement of the complex transfer function of the ring is presented and five frequency tones with a 10-GHz spacing are produced using a dual-frequency electrical input at 10 and 20 GHz. A comb shape comparison is conducted for different modulator bias voltages, indicating optimum operation at a small forward-bias voltage. A time-domain measurement confirmed that the comb signal was highly coherent, forming 20.3-ps-long pulses.
Databáze: MEDLINE