Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass

@article{Hughes2007FabricationAC,
  title={Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass},
  author={Mark A Hughes and Weijia Yang and Daniel W. Hewak},
  journal={Applied Physics Letters},
  year={2007},
  volume={90},
  pages={131113}
}
The authors describe the fabrication of buried waveguides in a highly nonlinear chalcogenide glass, gallium lanthanum sulfide, using focused femtosecond laser pulses. Through optical characterization of the waveguides, they have proposed a formation mechanism and provide comparisons to previous work. Tunneling has been identified as the dominant nonlinear absorption mechanism in the formation of the waveguides. Single mode guidance at 633nm has been demonstrated. The writing parameters for the… 

Figures from this paper

Ultrafast laser fabrication of Bragg waveguides in chalcogenide glass.
TLDR
This work presents Bragg waveguides fabricated in bulk chalcogenide glass using an ultrafast laser, and performance is evaluated based on the modulation duty cycle of the writing beam.
Spectral broadening in femtosecond laser written waveguides in chalcogenide glass
Nonlinear spectral broadening to 200 nm, from an initial width of 50 nm, has been demonstrated in gallium lanthanum sulphide glass waveguides from 1540 nm, 200 fs pulses at 30 nJ/pulse. A formation
Waveguide in Tm3+-Doped Chalcogenide Glass Fabricated by Femtosecond Laser Direct Writing
We fabricated a buried single line waveguide within a depth of 100 μm below the Tm3+-doped 75GeS215Ga2S310CsI (GGSI) glass substrate surface using a single line approach by femtosecond laser direct
Femtosecond laser inscription of nonlinear photonic circuits in Gallium Lanthanum Sulphide glass
We report on femtosecond laser writing of single mode optical waveguides in chalcogenide Gallium Lanthanum Sulphide (GLS) glass. A multiscan fabrication process was employed to create waveguides with
Femtosecond laser written surface waveguides fabricated in Nd:YAG ceramics.
TLDR
Time resolved confocal micro-luminescence experiments have been used to determine the spectroscopic properties of the Nd(3+) laser ions in the channel waveguide as well as to elucidate the waveguide formation processes.
Ultrafast laser inscription in chalcogenide glass: thermal versus athermal fabrication
Chalcogenide glasses are of great interest for a variety of applications, such as nonlinear optics, sensing and astronomy due to their high optical nonlinearity, broad infrared transparency as well
Morphology of waveguide written by femtosecond laser in As2S3 glass
Abstract Femtosecond laser writing in chalcogenide glasses offers great potentialities in photonic devices notably because of their high photo-sensitivity and their wide infrared transparency. We
Photo-thermal modifications in ultrafast laser inscribed chalcogenide glass waveguides
We report here, a finite difference thermal diffusion (FDTD) model for controlling the cross-section and the guiding nature of the buried channel waveguides fabricated on GeGaS bulk glasses using the
Femtosecond laser writing of multifunctional optical waveguides in a Nd:YVO4 + KTP hybrid system.
TLDR
The fabrication of optical channel waveguides supporting both visible and IR TE and TM confinement in a hybrid system composed of a Nd:YVO4 laser gain medium glued to a potassium titanyl phosphate (KTP) nonlinear crystal emerge as promising candidates for the development of multifrequency waveguide lasers.
Direct-write gratings in chalcogenide bulk glasses and fibers using a femtosecond laser
Abstract We explored the possibility of using femtosecond laser pulses for fabricating gratings inside chalcogenide glasses. We demonstrate for the first time, to the best of our knowledge, gratings
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 33 REFERENCES
Waveguide writing in chalcogenide glasses by train of femtosecond laser pulses
TLDR
Waveguide writing using a train of femtosecond laser pulses at 850 nm, in the transparent spectral region of bulk As40S60 glasses is reported, and the nonlinear optical origin leading to this phenomenon has been shown, and possible mechanisms are discussed.
Femtosecond writing of active optical waveguides with astigmatically shaped beams
We describe a novel approach for the fabrication of optical waveguides by focused low-repetition-rate femtosecond laser pulses. This approach overcomes the main limitation of the technique, i.e., the
Development of channel waveguide lasers in Nd3+-doped chalcogenide (Ga:La:S) glass through photoinduced material modification
We report the development of a waveguide laser source in a neodymium-doped chalcogenide (Ga:La:S) glass. Channel waveguide structures were directly written via above band gap (=244 nm) illumination
Femtosecond laser direct writing of embedded optical waveguides in aluminosilicate glass
Using tightly focused femtosecond laser pulses to irradiate lines in aluminosilicate glass, embedded lines with increased refractive index, which function as optical waveguides were observed. The
Waveguide fabrication in phosphate glasses using femtosecond laser pulses
We report on the response of glass to focused femtosecond (fs) laser pulses during waveguide fabrication in a commercial sodium aluminum phosphate glass (Schott IOG-1). Single-pass longitudinal
Optical waveguide fabrication with double pulse femtosecond lasers
We demonstrate the optical waveguide fabrication inside fused silica glasses using double pulse femtosecond lasers to decrease the optical loss which may be caused by nonuniformity of the refractive
Femtosecond Optical Breakdown in Dielectrics
We report measurements of the optical breakdown threshold and ablation depth in dielectrics with different band gaps for laser pulse durations ranging from 5 ps to 5 fs at a carrier wavelength of 780
Waveguide structures in heavy metal oxide glass written with femtosecond laser pulses above the critical self-focusing threshold
We study the feasibility of femtosecond laser writing of optical waveguides in bulk 35PbO∙35Bi2O3∙15Ga2O3∙15GeO2 glass, motivated by the extended transparency interval of heavy metal oxide glasses in
Study of femtosecond-laser-written waveguides in glasses
Mechanisms of the femtosecond-laser-induced refractive-index change (Δn) were investigated for fused silica and a borosilicate glass. Experiments were based on two exposure situations: (a) high
Site-selective spectroscopy in dysprosium-doped chalcogenide glasses for 1.3-m optical-fiber amplifiers
Dy3+ -doped chalcogenide glasses are potential candidates for 1.3µm optical-fiber amplifiers. We describe spectroscopic characterization of Dy3+ -doped gallium lanthanum sulphide glasses with low and
...
1
2
3
4
...