Erbium-doped fluoride glass waveguides

Waldmann, Maike; Caspary, Reinhard; Esser, Dominik; Wortmann, Dirk; Gottmann, Jens; Kowalsky, Wolfgang

doi:10.1109/icton.2008.4598694

Cited by 3 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In terms of device ruggedness, embedded waveguides are inherently protected from air and moisture exposure, unlike ZBLAN fibers which have large surface areas and can weaken and degrade over time unless elaborate precautions are taken [15]. Approaches investigated to fabricate waveguides in fluoride glasses involve multi-step processes such as vapor phase deposition [16], hot dip spin coating [17] and photolithography/ wet-etching [18]. The only report of a fluoride glass waveguide laser (specifically Nd 3+ operating at 1.0 and 1.3 μm) was based on a complex fabrication procedure involving hot dip spin coating deposition of core and cladding layers, with 244 nm cw laser-writing used to achieve lateral confinement [19].…”

Section: Introductionmentioning

confidence: 99%

Versatile large-mode-area femtosecond laser-written Tm:ZBLAN glass chip lasers

Lancaster¹,

Gross²,

Fuerbach³

et al. 2012

Opt. Express

View full text Add to dashboard Cite

We report performance characteristics of a thulium doped ZBLAN waveguide laser that supports the largest fundamental modes reported in a rare-earth doped planar waveguide laser (to the best of our knowledge). The high mode quality of waveguides up to 45 um diameter (~1075 μm(2) mode-field area) is validated by a measured beam quality of M(2)~1.1 ± 0.1. Benefits of these large mode-areas are demonstrated by achieving 1.9 kW peak-power output Q-switched pulses. The 1.89 μm free-running cw laser produces 205 mW and achieves a 67% internal slope efficiency corresponding to a quantum efficiency of 161%. The 9 mm long planar chip developed for concept demonstration is rapidly fabricated by single-step optical processing, contains 15 depressed-cladding waveguides, and can operate in semi-monolithic or external cavity laser configurations.

show abstract

Section: Introductionmentioning

confidence: 99%

Versatile large-mode-area femtosecond laser-written Tm:ZBLAN glass chip lasers

Lancaster¹,

Gross²,

Fuerbach³

et al. 2012

Opt. Express

View full text Add to dashboard Cite

show abstract

“…In terms of device ruggedness, embedded waveguides are inherently protected from air and moisture exposure, unlike ZBLAN fibres which have large surface areas and can weaken and degrade over time unless elaborate precautions are taken 11 . Approaches investigated to write waveguides in fluoride glasses involve multi-step processes such as vapour phase deposition 12 , hot dip spin coating 13 and photolithography/ wet-etching 14 . The only report of a fluoride glass waveguide laser (specifically Nd 3+ laser operation at 1.0 and 1.3 m) was based on a complex fabrication procedure involving deposition of core and cladding layers using hot dip spin coating, with 244nm cw laser writing used to achieve lateral confinement 15 .…”

Section: Introductionmentioning

confidence: 99%

Versatile fs laser-written glass chip lasers

et al. 2013

View full text Add to dashboard Cite

We report laser-written chip lasers with potential to be a platform planar technology versatile enough to cover the visible through to the mid-infrared spectral region. By femtosecond laser direct-writing a thulium doped fluoride based glass host (ZBLAN), we have demonstrated a 151% quantum efficiency =1.9 m laser with a close to diffraction limited beam quality (M 2~ 1.12 ± 0.08) with 225 nm of continuous tunability in a device that can be rapidly fabricated by singlestep optical processing. The 9 mm long planar chip developed for concept demonstration contains fifteen large modearea waveguides that can operate in semi-monolithic or external cavity laser configurations. This chip laser has achieved the highest quantum efficiency from a planar glass waveguide laser. The depressed cladding geometry supports the largest fundamental modes reported for a rare-earth doped waveguide laser thereby favouring high peak-power operation which is demonstrated by achieving 1.9 kW peak-power pulses when Q-switched.

show abstract

“…For achieving the fluorescence enhancement as high as possible different host materials other than pure silica, e.g. doped silica, phosphate glasses, telluride glasses, fluoride glasses, bismuth-based glasses doped with Er ions have been investigated [2][3][4][5][6]. These different host materials have shown their own advantages (wider emission, higher Er doping level etc.)…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Er-Doped ZrO2 Nanocrystalline Phase-Separated Preforms of Optical Fibers by MCVD Process

Dhar

Kašík

Podrazký

et al. 2011

Int. J. Appl. Ceram. Technol.

View full text Add to dashboard Cite

The fabrication of Er-doped ZrO 2 -based nanocrystalline phase-separated silica optical preforms by the MCVD and solution doping techniques is presented. Fabricated preform cores are nearly transparent and contain phase-separated rare-earth doped nanocrystalline particles with diameters mainly in a range from 20 to 80 nm. High concentrations of erbium and aluminium in preform cores of about 0.3 and 14 mol%, respectively have been achieved without defects on the core-cladding interface. Spectral losses in a range 800-1600 nm and fluorescence spectra of erbium ions around 1550 nm measured on a fibre drawn from the preform are reported.

show abstract

Erbium-doped fluoride glass waveguides

Cited by 3 publications

References 7 publications

Versatile large-mode-area femtosecond laser-written Tm:ZBLAN glass chip lasers

Versatile large-mode-area femtosecond laser-written Tm:ZBLAN glass chip lasers

Versatile fs laser-written glass chip lasers

Preparation and Properties of Er-Doped ZrO2 Nanocrystalline Phase-Separated Preforms of Optical Fibers by MCVD Process

Contact Info

Product

Resources

About