Yb/Er-codoped and Yb-doped waveguide lasers in phosphate glass

Veasey, D. L.; Funk, David S.; Peters, P.M.; Sanford, Norman A.; Obarski, Gregory E.; Fontaine, N. H.; Young, Matt; Peskin, Adele P.; Liu, Wei-Chih; Houde‐Walter, S. N.; Hayden, Joseph S.

doi:10.1016/s0022-3093(99)00677-8

Cited by 129 publications

(71 citation statements)

References 21 publications

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“…The gain characteristics of this glass can be found in [23]. The ion-exchanged glass samples were endpolished to produce a range of samples with lengths of 20 mm, 9.4 mm, 8 mm and 6.5 mm.…”

Section: Methodsmentioning

confidence: 99%

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Lagatsky¹,

Choudhary²,

Kannan³

et al. 2013

Opt. Express

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Abstract:We demonstrate passively mode-locked Yb 3+ -doped glass waveguide lasers in a quasi-monolithic configuration with a maximum pulse repetition frequency up to 15.2 GHz. A semiconductor saturable absorber mirror (SESAM) is used to achieve stable mode-locking around 1050 nm with pulse durations as short as 811 fs and an average power up to 27 mW. Different waveguide samples are also employed to deliver pulses with repetition rates of 4.9 GHz, 10.4 GHz and 12 GHz with an average power of 32 mW, 60 mW and 45 mW, respectively. The group velocity dispersion control in the cavity is provided by changing the gap between the SESAM and the waveguide end-face to facilitate a soliton mode-locking regime. Ferrari, and A. K. Kar, "1.5 GHz picosecond pulse generation from a monolithic waveguide laser with a graphene-film saturable output coupler," Opt. Express 21(7), 7943-7950 (2013). 23. ©2013 Optical Society of America

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“…The gain characteristics of this glass can be found in [23]. The ion-exchanged glass samples were endpolished to produce a range of samples with lengths of 20 mm, 9.4 mm, 8 mm and 6.5 mm.…”

Section: Methodsmentioning

confidence: 99%

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Lagatsky¹,

Choudhary²,

Kannan³

et al. 2013

Opt. Express

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“…3 was achieved for m s . The YbEr energy transfer efficiency can be estimated from the approximate equation for the cross-relaxation quantum efficiency [17] When fitting the cross-relaxation process we considered that the coefficient keeps the constant value of m s . This is equivalent to the assumption that the addition of Yb into the glass matrix does not influence the solubility and the radiative properties of Er (i.e., the Yb-co-doping does not change the up-conversion probability).…”

Section: Model Simulation and Discussionmentioning

confidence: 99%

Er–Yb Waveguide Amplifiers in Novel Silicate Glasses

Ondráček

Jágerská²,

Salavcova³

et al. 2008

IEEE J. Quantum Electron.

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Abstract-A set of novel silicate glasses containing ZnO and co-doped with Er 3+ and Yb 3+ was designed as substrates for optical waveguide amplifiers. Characterized by exceptionally low up-conversion, minimum Er concentration quenching and high mechanical as well as chemical stability, the reported glasses can compete with phosphate-based materials typically used in the state-of-art active devices. Straight channel waveguides with propagation losses as low as 0.18 dB/cm were fabricated in these substrates using Ag + Na + and K + Na + thermal ion exchange. Net on-chip gain values of 6.7 dB at 1537 nm were measured and a net fiber to-fiber gain of 5 dB was achieved when pumped at 976 nm. A six-level spatially resolved numerical model of an Er-Yb co-doped active waveguide was developed to analyze and optimize the amplifier performance. Modification of the rare-earth dopant concentration and the channel waveguide geometry was proposed to increase the gain figure and improve the overall amplifier efficiency.Index Terms-Channel waveguides, Er-Yb-doped glass, ion exchange, optical waveguide amplifier.

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“…This model assumes resonant behaviour inside the ring for both pump and signal powers and considers the coupled evolution of the rare-earth ions population densities and the optical powers that propagate inside the MRR. Since high dopant concentrations are needed to exploit the active potentialities of the structure phosphate glass with a high solubility for rare earth ions results an optimum host 17 . Moreover, energy-transfer inter-atomic processes become enhanced and have to be carefully considered in the numerical design.…”

Section: Introductionmentioning

confidence: 99%

Requirements for gain/oscillation in Yb³⁺/Er³⁺-codoped microring resonators

Vallés

Gălătuș

2015

SPIE Proceedings

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A detailed model of the performance of a highly Yb 3+ /Er 3+ -codoped phosphate glass add-drop filter, which combines the propagation at resonance of both pump and signal powers inside the microring resonator with their interaction with the dopant ions, is used to analyze the requirements for gain/oscillation in these structures. Special attention is paid to the influence of additional coupling losses and asymmetry between the input/output couplers. It is concluded that, due to small signal gain saturation and the limited range of pump amplitude coupling coefficients, asymmetry does not greatly influence gain/oscillation requirements through the pump intensity build-up inside the ring. Asymmetry effect on small signal intensity transfer rate and threshold gain instead allows a significant lightening of the demanding doping ions concentrations requirements to achieve oscillation.

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Yb/Er-codoped and Yb-doped waveguide lasers in phosphate glass

Cited by 129 publications

References 21 publications

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Er–Yb Waveguide Amplifiers in Novel Silicate Glasses

Requirements for gain/oscillation in Yb³⁺/Er³⁺-codoped microring resonators

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Yb/Er-codoped and Yb-doped waveguide lasers in phosphate glass

Cited by 129 publications

References 21 publications

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz

Er–Yb Waveguide Amplifiers in Novel Silicate Glasses

Requirements for gain/oscillation in Yb3+/Er3+-codoped microring resonators

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Requirements for gain/oscillation in Yb³⁺/Er³⁺-codoped microring resonators