Generation of optical frequency combs using gain switched semiconductor nanolasers

In this paper, a novel scheme to generate optical frequency combs (OFCs) using gain switched (GS) semiconductor nanolasers (SNLs) is proposed. Numerical calculations have been performed using rate equations, which include the Purcell cavity-enhanced spontaneous emission factor F and the spontaneous...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 35; no. 13; p. 1
Main Authors Fan, Yuanlong, Alan Shore, K.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Broadband
Carrier lifetime
Frequency modulation
Gain
Gain switching
Integrated circuits
Modulation
Optical frequency
optical frequency combs
Optical pulses
Optical switches
semiconductor nanolasers
Spontaneous emission
Ultrafast optics
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Summary:In this paper, a novel scheme to generate optical frequency combs (OFCs) using gain switched (GS) semiconductor nanolasers (SNLs) is proposed. Numerical calculations have been performed using rate equations, which include the Purcell cavity-enhanced spontaneous emission factor F and the spontaneous emission coupling factor β. The results demonstrate that broadband OFCs (10 dB frequency span, f 10 >1 THz ) can be generated over a wide range of parameter space due to the intrinsic dynamics of the SNLs. Moreover, it is observed that f 10 is associated with the effective reduction of the carrier lifetime and increases with increase of the bias current. The broadband OFCs generated in GS SNLs offers opportunities for their practical applications and notably in photonic integrated circuits.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2023.3274164