US 12,322,924 B2
Tunable broadband random optoelectronic oscillator
Ming Li, Beijing (CN); Zengting Ge, Beijing (CN); Tengfei Hao, Beijing (CN); and Wei Li, Beijing (CN)
Assigned to Institute of Semiconductors, Chinese Academy of Sciences, Beijing (CN)
Filed by Institute of Semiconductors, Chinese Academy of Sciences, Beijing (CN)
Filed on Nov. 23, 2021, as Appl. No. 17/456,179.
Claims priority of application No. 202011333003.9 (CN), filed on Nov. 24, 2020.
Prior Publication US 2022/0166182 A1, May 26, 2022
Int. Cl. H01S 3/13 (2006.01); H01S 3/00 (2006.01); H01S 3/067 (2006.01); H01S 3/094 (2006.01); H01S 3/16 (2006.01); H01S 3/23 (2006.01); H01S 3/30 (2006.01); H03B 17/00 (2006.01)
CPC H01S 3/302 (2013.01) [H01S 3/0064 (2013.01); H01S 3/0085 (2013.01); H01S 3/06716 (2013.01); H01S 3/06725 (2013.01); H01S 3/094046 (2013.01); H01S 3/1305 (2013.01); H01S 3/1618 (2013.01); H01S 3/2391 (2013.01); H03B 17/00 (2013.01); H01S 3/005 (2013.01); H01S 3/06754 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A tunable broadband random optoelectronic oscillator, comprising:
a laser light source configured to generate continuous laser light;
a positive feedback loop formed by an intensity modulator, an optical circulator, an optical filter, an optical amplifier, a photodetector, an electric filter and an electric amplifier connected in sequence, wherein the positive feedback loop is configured to receive the continuous laser light to generate a microwave signal and achieve an optic-electro/electro-optic conversion;
a Raman laser configured to generate Raman pump light;
a wavelength division multiplexer having a first input terminal connected to the Raman laser and a second input terminal connected to the optical circulator; and
a dispersion compensation fiber connected to an output terminal of the wavelength division multiplexer;
wherein forward transmission laser light passing through the optical circulator and the Raman pump light are coupled into the dispersion compensation fiber through the wavelength division multiplexer.