Optical double-locked semiconductor lasers

VCSEL-Based Optical Frequency Combs Expansion Induced by Polarized Optical Injection

“…Summarizing, for VCSELs with large birefringence splitting the maximum frequency enhancement is the spectral width of the freerunning OFC, SW 10,f , while for small birefringence splitting VCSELs the frequency enhacement is precisely the value of this splitting, γ p /π. Another strategy for obtaining combs with wider frequency range is to use strong optical injection regime to shift relaxation oscillation frequency to higher value, as suggested in a theoretical study on single-mode edge emitting lasers [33]. This idea applied to VCSELs will be the subject of future work.…”

Cascaded injection of semiconductor lasers for optical frequency comb generation

“…Photonic generation of high-quality single-frequency microwaves [1][2][3][4] and multi-frequency microwave combs [5,6] using nonlinear semiconductor laser dynamics has been theoretically studied and experimentally investigated. When semiconductor lasers are optically injected by single-frequency optical continuous waves at the hopf bifurcation point [1], the semiconductor lasers are destabilized at a fundamental oscillation frequency f0, known as Period-one (P1) frequency.…”

“…Photonic generation of high-quality single-frequency microwaves [1][2][3][4] and multi-frequency microwave combs [5,6] using nonlinear semiconductor laser dynamics has been theoretically studied and experimentally investigated. When semiconductor lasers are optically injected by single-frequency optical continuous waves at the hopf bifurcation point [1], the semiconductor lasers are destabilized at a fundamental oscillation frequency f0, known as Period-one (P1) frequency. While the microwave quality of the P1 dynamics typically suffers from the semiconductor laser noise and the associated instabilities, several studies have demonstrated that double-locking [1], phase-locking [2], cascaded injectionlocking [3] and mutual injection-locking [4] are feasible approaches for high-quality microwaves generation using the stabilized P1 dynamics.…”

“…When semiconductor lasers are optically injected by single-frequency optical continuous waves at the hopf bifurcation point [1], the semiconductor lasers are destabilized at a fundamental oscillation frequency f0, known as Period-one (P1) frequency. While the microwave quality of the P1 dynamics typically suffers from the semiconductor laser noise and the associated instabilities, several studies have demonstrated that double-locking [1], phase-locking [2], cascaded injectionlocking [3] and mutual injection-locking [4] are feasible approaches for high-quality microwaves generation using the stabilized P1 dynamics. Optical frequency combs (OFCs) are coherent light sources having discrete series of evenly spaced (MHz ~ GHz) spectral components.…”

Suppression of Intensity and Frequency Noise at Low-Sensitivity Operating Points of Period-One Dynamics of Optically Injected Semiconductor Lasers

“…Therefore, many efforts have been conducted to improve the P1 oscillation stability. A reference microwave source at the P1 oscillation frequency or its subharmonics can double lock the P1 oscillation through direct current modulation [19] or external optical modulation [20], [21]. To eliminate the reference microwave source, an electronic microwave amplifier and an attenuator are added to form an optoelectronic feedback loop, reducing the P1 microwave linewidth by three orders of magnitude [22], [23].…”