Bistable laser diodes and their applications: state of the art

Kawaguchi, Hitoshi

doi:10.1109/2944.658606

Cited by 173 publications

(64 citation statements)

References 53 publications

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“…This indicates a different mechanism responsible for the bistability than in electrically driven vertical-cavity surface-emitting lasers (VCSELs) [39]. One could also expect that a mode competition between the Zeeman branches causes the bistability.…”

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confidence: 99%

Optical bistability in electrically driven polariton condensates

et al. 2015

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We observe a bistability in an electrically driven polariton condensate, which is manifested by a memory dependent threshold characteristic. In contrast to the polariton bistabilities previously observed in resonantly optically pumped microcavities, our effect occurs under nonresonant electric pumping and is triggered by the current injection scheme. We explain the origin of the bistability by a dependence of the electron-hole tunneling lifetime on the carrier density in the embedded quantum wells. The field screening effect creates a positive feedback loop, which yields the bistable behavior of the condensate. We develop a rate-equation-based model which qualitatively explains the occurrence of the hysteresis under current injection, its reduction with increased magnetic field, and the absence of bistability under optical pumping.

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confidence: 99%

Optical bistability in electrically driven polariton condensates

et al. 2015

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“…Vertical-cavity surface-emitting lasers (VCSELs) with a square mesa structure lase in one of the two orthogonal linear polarization states and exhibit a bistable property between these two polarization states. Polarization bistable switching of VCSELs can be induced using external optical injection [1]. We demonstrated many types of all-optical signal processing based on flip-flop operations using polarization bistable VCSELs [2].…”

Section: Introductionmentioning

confidence: 99%

Flip-flops using polarization bistable VCSEL with AND-gate functionality by two wavelength inputs

Katayama

Nakao

Hayashi

et al. 2016

IEICE Electron. Express

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Abstract:We investigated all-optical flip-flop operations with AND-gate functionality by injecting data and set inputs with different wavelengths to a 1.55-µm polarization bistable vertical-cavity surface-emitting laser. Control of the phase difference between the two inputs is not needed for stable operation, which differs from the same wavelength case we have used thus far. Thus, this proposed method will simplify all-optical signal processing systems. The wavelength difference dependencies of the switching power and the timing jitter of the polarization switching were measured for 1-ns data pulses. For 2 GHz wavelength difference, the data (set) pulse power was about −20 (−14) dBm and the timing jitter was about 110 ps. The BER was about 8 × 10 −3 .

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“…All these flip-flops require a holding beam, or, some of them gererate output modes in both ON and OFF states. All optical flip-flops based on bistable laser diode are discussed in [8] [9], and they do not require a holding beam. In [8] [9], the flip-flop is Fabry-Perot laser cavity that includes a saturable absorber, where the optical loss in the cavity is reduced at high light intensity in the laser cavity.…”

Section: Introductionmentioning

confidence: 99%

An Improved Design for an All-Optical Flip-Flop Based on a Nonlinear 3-Sections DFB Laser Cavity

Zoweil¹

2016

OPJ

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A new all optical flip-flop based on a 3-sections nonlinear semiconductor DFB laser structure is proposed and simulated. The operation of the device does not require a holding beam. Electrical current injection into an active layer provides optical gain to the laser mode. The wave-guiding layer consists of a linear grating section centered between 2 detuned nonlinear grating sections. The average refractive index in the nonlinear sections is slightly higher than the refractive index of the middle section. A negative nonlinear refractive index coefficient exists along the nonlinear sections. In the "OFF" state, the DFB structure does not provide enough optical feedback to lase due to the detuned sections. At high light intensity in structure, "ON" state, detuning decreases and the DFB structure allows for a laser mode that sustains the decrease in detuning to exist. The nonlinearity is provided by direct photon absorption at the Urbach tail. Numerical simulations using GPGPU computing show nanoseconds transition times between "OFF" and "ON" states.

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Bistable laser diodes and their applications: state of the art

Cited by 173 publications

References 53 publications

Optical bistability in electrically driven polariton condensates

Optical bistability in electrically driven polariton condensates

Flip-flops using polarization bistable VCSEL with AND-gate functionality by two wavelength inputs

An Improved Design for an All-Optical Flip-Flop Based on a Nonlinear 3-Sections DFB Laser Cavity

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