Neodymium-doped tantalum pentoxide waveguide lasers

Ünal, B.; Netti, M.C.; Hassan, Majid; Ayliffe, P.; Charlton, Martin D. B.; Lahoz, F.; Perney, N.M.B.; Shepherd, D.P.; Tai, Chao Yi; Wilkinson, James S.; Parker, G.J.

doi:10.1109/jqe.2005.858775

Cited by 36 publications

(17 citation statements)

References 21 publications

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“…Another practical challenge posed for the implementation of this method is that the discharge ignited to produce the plasma can be maintained only for a very amplifiers [187][188][189], leading to the demonstration of devices with an amplification bandwidth of 80 nm, covering the entire C-band [183]. Laser emission has been obtained from Nd-doped [190,191], Er-doped [192] ring [194] and DFB channel waveguides [195] produced in sputtered layers of the corresponding materials, as well as from Nd-doped phosphate glass slab waveguides [196]. Recently, emission of 440-fs-short laser pulses from Er-doped aluminosilicate glass rib waveguides based on RFsputtered films has been reported [44].…”

Section: Sputteringmentioning

confidence: 99%

“…There are also a number of reports on laser operation of RIE-microstructured rib waveguides in layers based on Er/Aldoped germanosilicate glass [129,130] and Ta 2 O 5 :Nd 3+ [190], as well as in silicon [42,43] [194,195] integrated waveguide lasers based on DBR [193], ring [194], and DFB resonators [195]. , and the limited damage that is induced to the lattice as compared to dry etching.…”

Section: Dry Etchingmentioning

confidence: 99%

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Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

Grivas

2011

Progress in Quantum Electronics

193

102

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Abstract:The tremendous interest in the field of waveguide lasers in the past two decades is largely attributed to the geometry of the gain medium, which provides the possibility to store optical energy on a very small dimension in the form of an optical mode. This allows for realization of sources with enhanced optical gain, low lasing threshold, and small footprint and opens up exciting possibilities in the area of integrated optics by facilitating their on-chip integration with different functionalities and highly compact photonic circuits. Moreover, this geometrical concept is compatible with high power diode pumping schemes as it provides exceptional thermal management, minimizing the impact of thermal loading on laser performance. The proliferation of techniques for fabrication and processing capable of producing high optical quality waveguides has greatly contributed to the growth of waveguide lasers from a topic of fundamental research to an area that encompasses a variety of practical applications. In this first part of the review on optically pumped waveguide lasers the properties that distinguish these sources from other classes of lasers will be discussed. Furthermore, the current state-of-the art in terms of fabrication tools used for producing waveguide lasers is reviewed from the aspects of the processes and the materials involved. 2 1.IntroductionOver the last two decades the field of solid-state planar waveguide lasers has experienced a steady growth, progressing from a laboratory curiosity to an area that demonstrates a broad spectrum of applications, from multiwavelength laser channel arrays for telecommunications to diode-pumped planar structures with multiwatt output powers for sensing and ranging applications. Waveguide lasers are by no means a new field and the first report on such a source dates back in 1961, when laser operation of a waveguide based on an active glass core rod embedded in a low refractive index cladding was demonstrated [1]. However research efforts in the years that followed this report focused primarily on the development of optically pumped laser sources based on high optical quality bulk dielectric laser media in the form of rods and slabs. The merits of the waveguide geometry and the associated optical confinement have been first highlighted in single mode glass optical fibers. Fibers have proven an enabling technology for realization of highly efficient amplifier and laser sources owing to their unrivalled low loss performance and ability to maintain a small spot size and hence high intensities over lengths that are orders of magnitude longer than would normally be allowed by diffraction, [2,3]. Er-doped fiber amplifiers (EDFAs) in particular have directly contributed to the enormous expansion of the optical communications networks that underpin today's internet infrastructure by allowing for signal regeneration and optical data transmission over long distances. The excellent performance of fiber lasers and amplifiers provided motivation and triggered a major techn...

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Section: Sputteringmentioning

confidence: 99%

Section: Dry Etchingmentioning

confidence: 99%

Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

Grivas

2011

Progress in Quantum Electronics

193

102

View full text Add to dashboard Cite

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“…Since we have previously achieved low-loss waveguiding using [16], the input/output (I/O) waveguides are designed using the abovementioned materials and have a symmetric channel waveguide structure. To operate at single-mode condition at nm, the I/O waveguides are designed to have a square cross section of m m. The coupled plasmonic waveguide arrays, consisting of periodically placed Au nanorods, are embedded between substrate and cladding.…”

Section: Design and Analysismentioning

confidence: 99%

Design and Analysis of an Ultra-Compact and Ultra-Wideband Polarization Beam Splitter Based on Coupled Plasmonic Waveguide Arrays

Tai

Chang

Chiu

2007

IEEE Photon. Technol. Lett.

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We present the design of an ultra-compact polarization beam splitter where three symmetrical dielectric channel waveguides are hybrid integrated with Au plasmonic waveguide arrays. Ultra-wideband operation over 50 THz with the insertion loss less than 2 dB for both transverse electric and transverse magnetic mode are predicted. The extinction ratio is better than 15 dB for both polarizations and it is realizable on a chip size as small as 0 93 4 2 m 2 .

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“…Optically active rare earth-doped tantalum pentoxide films have been produced for the purpose of developing compact sources and amplifiers for telecommunications applications [7][8][9][10]. Also, due to their high transparency and extensive range, Ta 2 O 5 crystals offer the prospect of low loss optical waveguides [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Eu2O3 doping on Ta2O5 crystal growth by the laser-heated pedestal technique

Saggioro

Andreeta

Hernandes

et al. 2010

Journal of Crystal Growth

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Neodymium-doped tantalum pentoxide waveguide lasers

Cited by 36 publications

References 21 publications

Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

Optically pumped planar waveguide lasers, Part I: Fundamentals and fabrication techniques

Design and Analysis of an Ultra-Compact and Ultra-Wideband Polarization Beam Splitter Based on Coupled Plasmonic Waveguide Arrays

Effect of Eu2O3 doping on Ta2O5 crystal growth by the laser-heated pedestal technique

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