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We report laser oscillation from waveguides inscribed in Nd-doped silicate glass. Laser action was observed at 1062nm for a pump of 808nm, with a slope efficiency of 15.0% and maximum output power of 7.5mW.
High-power, waveguide-based microchip laser devices designed for integrated optical circuits. Here we report a channel waveguide laser fabricated in a Yb3+-doped KGd(WO4)2 (Yb:KGdW) crystal using an ultrashort pulse laser inscription technique. The laser beam was circularly polarized and was focused with ax20 microscope objective into the sample 430 mum beneath the surface and the sample was translated...
Ultrafast laser inscription has been used to inscribe an optical waveguide in ErYb-doped glass. We demonstrate that the irradiation does not degrade the 4I13/2 lifetime of Er-ions embedded in the modified material.
A three dimensional fan-out device has been fabricated using ultrafast laser inscription. The device allows each core of a multicore fibre to be addressed individually by a single mode fiber held in an FVA.
Waveguides were fabricated inside a Bi-doped silica glass using ultrafast laser inscription. When optically pumped at 980 nm, ultra-broadband gain was measured from the waveguides, paving the way for compact ultra-broadband optical amplifiers.
We report on the fabrication and characterisation of waveguides fabricated in a GeS based chalcogenide glass. A wide range of waveguiding structures were fabricated, and supercontinuum generation was demonstrated for a highly multimode waveguide.
A three dimensional fan-out device has been fabricated using ultrafast laser inscription. The device allows each core of a multicore fibre to be addressed individually by a single mode fiber held in an FVA.
Ultrafast laser inscription has been used to inscribe an optical waveguide in ErYb-doped glass. We demonstrate that the irradiation does not degrade the 4I13/2 lifetime of Er-ions embedded in the modified material.
Waveguides were fabricated inside a Bi-doped silica glass using ultrafast laser inscription. When optically pumped at 980 nm, ultra-broadband gain was measured from the waveguides, paving the way for compact ultra-broadband optical amplifiers.
We demonstrate laser action from a waveguide fabricated in an Er:Yb-doped silicate glass using femtosecond laser inscription. Waveguides were fabricated using a diode-pumped Yb:glass oscillator at a 600-kHz repetition rate. The multiscan technique was used to control the waveguide cross section. Textbook threshold characteristics are observed for both 980 nm and dual-wavelength excitation.
Waveguides were fabricated inside a Bi-doped silica glass using ultrafast laser inscription. When optically pumped at 980 nm, ultra-broadband gain was measured from the waveguides, paving the way for compact ultra-broadband optical amplifiers.
A three dimensional fan-out device has been fabricated using ultrafast laser inscription. The device allows each core of a multicore fibre to be addressed individually by a single mode fiber held in an FVA.
Ultrafast laser inscription has been used to inscribe an optical waveguide in ErYb-doped glass. We demonstrate that the irradiation does not degrade the 4I13/2 lifetime of Er-ions embedded in the modified material.
We report on the fabrication and characterisation of waveguides fabricated in a GeS based chalcogenide glass. A wide range of waveguiding structures were fabricated, and supercontinuum generation was demonstrated for a highly multimode waveguide.
We have fabricated a three core tellurite glass fiber having a different rare earth system in each of its cores. Three distinct sets of emission characteristics are observed with a single pump wavelength.
We demonstrate laser action from a waveguide fabricated in an Er:Yb-doped silicate glass using femtosecond laser inscription. Single-mode waveguides were fabricated exhibiting a total background insertion loss excluding absorption of only 1.2 dB. Textbook threshold characteristics are observed for both 980 nm excitation and dual wavelength excitation.
We describe the femtosecond inscription of waveguides in z-cut lithium niobate using the multi-scan technique. The form of modified regions and their relationship with writing pulse energy and scan speed is examined. An insertion loss of 3.5 dB at 1550 nm was measured for an 18 mm long waveguide coupled to single-mode fibers.
Tellurite glass fibre has great potential for use in near and mid infrared (mid-IR) optics. The high nonlinearity and its excellent transmission properties in the infrared make it an ideal candidate for many linear and nonlinear optical devices (Abedin, 2006). These can be devices for chemical sensing, nonlinear optical signal processing, Raman amplification or mid-IR continuum generation. Tellurite...
We report on the fabrication of high quality embedded channel waveguides inside Bi-doped silicate glass using femtosecond waveguide inscription. When optically pumped, ultrabroadband fluorescence emission of 500 nm (FWHM) is detected, centered at 1.3 mum.
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