Gain-assisted high-dimensional self-trapped laser beams at very low light levels

Li, Huijun; Dong, Liangwei; Hang, Chao; Huang, Guoxiang

doi:10.1103/physreva.83.023816

Cited by 15 publications

(7 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…∆ j (j = 2, 3, 4) are detunings, and dashed arrows denote the spontaneous-emission rates (Γ 13 , Γ 14 , Γ 24 ). Such system, where the states |j (j = 1, 2, 3), the pump field (Ω p ) and signal field (Ω s ) constitutes a core of active Raman gain (ARG) [14][15][16], has attracted considerable attention recently [4,13,17,18,22].…”

Section: A Model and Linear Dispersion Relationmentioning

confidence: 99%

“…The fast-light media presented here may have giant Kerr nonlinearities, as demonstrated in Refs. [4,[17][18][19][20]22]. The fast, all-Optical, zero to π continuously controllable phase gates based on such media have been realized experimentally in Ref.…”

Section: Autler-townes Splitting In the Gal-ii Systemmentioning

confidence: 99%

“…The works carried out by Wang et al [11] and Biglow et al [12], as well as those reported in Refs. [4,[13][14][15][16][17][18][19][20][21][22], further revealed many intriguing aspects of fast light, including the possibility of obtaining giant Kerr nonlinearity and superluminal optical solitons. Recently, it has been demonstrated that the use of fast-light media can realize quantum phase gates [23] and light and quantum memory [24,25].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical analysis on quantum interference effect in fast-light media

Xu,

Tan,

Huang

2015

Preprint

Self Cite

View full text Add to dashboard Cite

We make a systematic theoretical analysis on the quantum interference (QI) effects in various fast-light media (including gain-assisted N , gain-assisted ladder-I, and gain-assisted ladder-II atomic systems). We show that such fast-light media are capable of not only completely eliminating the absorption but also suppressing the gain of signal field, and hence provide the possibility to realize a stable propagation of the signal field with a superluminal velocity. We find that there is a destructive (constructive) QI effect in gain-assisted ladder-I (gain-assisted N) system, but no QI in the gain-assisted ladder-II system; furthermore, a crossover from destructive (constructive) QI to Autler-Townes splitting may occur for the gain-assisted ladder-I (gain-assisted N) system when the control field of the system is modulated. Our theoretical analysis can be applied to other multi-level systems, and the results obtained may have promising applications in optical and quantum information processing and transmission.

show abstract

Section: A Model and Linear Dispersion Relationmentioning

confidence: 99%

Section: Autler-townes Splitting In the Gal-ii Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical analysis on quantum interference effect in fast-light media

Xu,

Tan,

Huang

2015

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Such interactions will be important ingredients in communication and computation protocols for weak photonic signals. Recently, theoretical studies have predicted the generation of stable ultra-weak intensity solitons and their collisions in three-and four-level quantized systems [15][16][17][18][19][20][21][22] , where the all-optical wave-guiding is achieved via quantum coherence effects induced by additional strong coupling beams.…”

Section: Introductionmentioning

confidence: 99%

Spatial Domain Interactions between Ultraweak Optical Beams

2013

View full text Add to dashboard Cite

“…The cubic quintic complex Ginsburg-Landau equation (CGLE) is one of the notable models to describe dissipative solitons and is also applied to describe a variety of phenomena in optics. For example, CGLE appears in resonant atomic systems under electromagnetically induced transparency [4] and gain-assisted systems [5,6] . The dissipative optical system described by CGLE receives solitons in one-, two-, and three-dimensional (1D, 2D, and 3D) [7] .…”

mentioning

confidence: 99%

Collisions between two dissipative optical bullets separated in space

Li¹,

Lu²,

Tang³

2011

中国光学快报

View full text Add to dashboard Cite

We present the numerical results of both head-on and non-head-on collisions between two stable dissipative optical bullets (DOBs) in a three-dimensional complex Ginzburg-Landau equation with cubic-quintic nonlinearity. The system parameters chosen are in the coexistence regions for both stationary DOBs and double bullet complexes (DBCs). By varying the initial velocities v and the impact parameters P which represent the distance between the parallel trajectories of colliding bullets, we observe three generic properties of the bullets: fusion, fission, and quasi-elastic collisions. A novel and interesting behavior is observed in the results, in which two or three DBCs occur in non-head-on collisions at intermediate values of v. OCIS codes: 060.5530, 190.5530, 320.7110. doi: 10.3788/COL201109.100602. Recently, the concept of the dissipative soliton, which is rooted in the classical soliton theory, the nonlinear dynamics theory of bifurcations, and the concept of selforganization proposed by Prigogine, has received increased attention [1] . Dissipative solitons are recognized as fixed localized solutions resulting from a double balance: between dispersion and nonlinearity on one hand and between gain and loss on the other hand. Taking fiber laser as an example, the high-order vector soliton [2] and the dissipative dark soliton [3] occur as the balance between laser gain saturation and output loss, and the balance between cavity dispersion and the fiber nonlinear Kerr effect. Further, all dissipative solitons can only survive in the presence of a continuous energy supply. The cubic quintic complex Ginsburg-Landau equation (CGLE) is one of the notable models to describe dissipative solitons and is also applied to describe a variety of phenomena in optics. For example, CGLE appears in resonant atomic systems under electromagnetically induced transparency [4] and gain-assisted systems [5,6] . The dissipative optical system described by CGLE receives solitons in one-, two-, and three-dimensional (1D, 2D, and 3D) [7] . The formed solitons can propagate stably, provided that the system parameters are carefully chosen in the specified regions. 1D and 2D dissipative solitons have been studied extensively [4,8] , but the solitons in 3D systems have not. The spatial-temporal soliton in 3D dissipative optical systems, usually called dissipative optical bullet (DOB), is created by the combined interplay of physical effects such as gain and loss, spectral filtering and dispersion, and diffraction and nonlinearity. Similar to what atoms are combined together to form a diatomic molecule, DOBs can be bound into the bullet molecule as well. The bullet molecule, called double bullet complex (DBC), appears as a localized structure that can be stationary, pulsating, and rotating. Meanwhile, DOBs can coexist with DBCs in nonlinear dissipative systems, which form some parameter regions of coexistence. The bistability in these regions can be applied to switch to the desired state using an applied control beam [9] which offers a well-...

show abstract

Gain-assisted high-dimensional self-trapped laser beams at very low light levels

Cited by 15 publications

References 32 publications

Theoretical analysis on quantum interference effect in fast-light media

Theoretical analysis on quantum interference effect in fast-light media

Spatial Domain Interactions between Ultraweak Optical Beams

Collisions between two dissipative optical bullets separated in space

Contact Info

Product

Resources

About