A chamfered-edge-pumped planar waveguide solid-state laser

Gong, Mali; Zhang, H; Kang, Hongxiang; Wang, D; Huang, Lei; Yan, Ping; Liu, Q

doi:10.1002/lapl.200810028

Cited by 23 publications

(14 citation statements)

References 10 publications

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“…Therefore, it is not surprising that there is large number of reports on such devices, almost all of which are based on YAG:Nd 3+ [16,[199][200][201][202][203][204][205][206][207][208][209][210][211][212][213][214][215] slab waveguides, largely due to the favorable thermo-mechanical properties of this crystal, which make it suitable for high-power diode pumping. Lasing was also reported for Nd 3+ -doped BK7 glass-based waveguides fabricated by a combination contact bonding and ion exchange [216].…”

Section: Contact and Diffusion Bondingmentioning

confidence: 99%

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

Grivas

2011

Progress in Quantum Electronics

194

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: Contact and Diffusion Bondingmentioning

confidence: 99%

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

Grivas

2011

Progress in Quantum Electronics

194

102

View full text Add to dashboard Cite

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“…However, Er 3+ -ion doped materials generally suffered from complicated energy cross relaxation and up conversion process, which makes them difficult to be applied in high power regime. The optical gain in Er 3+ -ion On the other hand, Nd 3+ -doped materials with simple energy level system and narrow linewidth have been successfully used for high-power solid-state lasers [14][15][16][17]. Unfortunately, high concentration of Nd 3+ -ion doping is not easy to be got due to large segregate coefficients of Nd 3+ -doped materials, resulting in a relative low optical gain of Nd 3+ -doped NPs.…”

Section: +mentioning

confidence: 97%

Optical amplification in NaYF₄:Nd nanoparticle dispersed solution with gain

Zhang

2010

Laser Phys. Lett.

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We present the first observation of optical amplification around ∼ 1 μm taking place in carbon tetrachloride solution of Nd3+ doped crystal nanoparticle synthesized with solvo-thermal route. Excited with a fiber-coupled 808-nm laser diode, Nd3+:NaYF4 nanoparticle dispersed solution exhibited strong near-infrared emission by the 4F3/2 – 4I11/2 transition of Nd3+ ions. Optical gain (0.13 dB/cm) around 1064 nm in the solution has been observed with the pump power of 2.1 W. The decrease of optical gain under intense pumping is not observed.

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“…A near-monolithic thermal-induced planar waveguide laser was demonstrated by Kang et al 32 . Another near-monolithic approach is a chamfered-edge-pumped planar waveguide Nd:YAG laser that produced 15.5 W at 1064 nm 33 . Ng and MacKenzie demonstrated a 105 W monolithic multimode planar waveguide laser operating at 946 nm in Nd:YAG 34 .…”

Section: Types Of Monolithic Solid-state Lasersmentioning

confidence: 99%

Monolithic solid-state lasers for spaceflight

Krainak

Stephen

et al. 2015

SPIE Proceedings

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A new solution for building high power, solid state lasers for space flight is to fabricate the whole laser resonator in a single (monolithic) structure or alternatively to build a contiguous diffusion bonded or welded structure. Monolithic lasers provide numerous advantages for space flight solid-state lasers by minimizing misalignment concerns. The closed cavity is immune to contamination. The number of components is minimized thus increasing reliability. Bragg mirrors serve as the high reflector and output coupler thus minimizing optical coatings and coating damage. The Bragg mirrors also provide spectral and spatial mode selection for high fidelity. The monolithic structure allows short cavities resulting in short pulses. Passive saturable absorber Q-switches provide a soft aperture for spatial mode filtering and improved pointing stability. We will review our recent commercial and in-house developments toward fully monolithic solid-state lasers.

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A chamfered-edge-pumped planar waveguide solid-state laser

Cited by 23 publications

References 10 publications

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

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

Optical amplification in NaYF₄:Nd nanoparticle dispersed solution with gain

Monolithic solid-state lasers for spaceflight

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A chamfered-edge-pumped planar waveguide solid-state laser

Cited by 23 publications

References 10 publications

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

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

Optical amplification in NaYF4:Nd nanoparticle dispersed solution with gain

Monolithic solid-state lasers for spaceflight

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Product

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Optical amplification in NaYF₄:Nd nanoparticle dispersed solution with gain