Download or read book Intracavity Optical Parametric Oscillators Based on Orientation patterned Gallium Arsenide written by Daniel John Kane and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a TM HO YLF laser pumped Orientation patterned Gallium Arsenide Optical Parametric Oscillator written by Michael D. Harm and published by . This book was released on 2002 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thick Film Orientation patterned Gallium Arsenide for Nonlinear Optical Frequency Conversion written by Paulina Susan Kuo and published by . This book was released on 2008 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cascaded Orientation patterned Gallium Arsenide Optical Parametric Oscillator for Improved Longwave Infrared Conversion Efficiency written by Ryan K. Feaver and published by . This book was released on 2017 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical parametric oscillators (OPOs) utilizing quasi-phase matched materials offer an appealing alternative to direct laser sources. Quasi-phase matched materials provide a useful alternative to traditional birefringent nonlinear optical materials and through material engineering, higher nonlinear coefficients can now be accessed. Orientation patterned gallium arsenide (OPGaAs) is an ideal material because of its broad IR transmission and large nonlinear coefficient. In contrast to ferroelectric materials, such as lithium niobate, where the pattern is fabricated through electric poling, zincblende materials, like OPGaAs, are grown epitaxially with the designed pattern. Generating longwave output from a much shorter pump wavelength, however, is relatively inefficiency due to the large quantum defect when compared to similar devices operating in the 3-5 μm regime. One method to increase pump to idler conversion efficiency is to recycle the undesired and higher energy signal photons into additional idler photons via a second nonlinear stage. An external amplifier stage can be utilized, where the signal and idler from the OPO are sent to a second nonlinear crystal in which the idler is amplified at the expense of the signal. Alternatively, the second crystal can be placed within the original OPO cavity where the signal from the first-stage acts as the pump for the second crystal and the resonant intensity of the signal is higher. Pumping the second crystal within the OPO should lead to higher conversion efficiency into the longwave idler. The grating period needed for the second crystal to use the signal from the first crystal to produce additional idler has the fortuitous advantage that it will not phase match to the original pump wavelength, avoiding unwanted nonlinear interactions. Therefore, a simple linear cavity can be utilized where the pump from the first-stage will simply propagate through the second crystal without undesired results. Without this feature, the pump would need to be coupled out of the cavity before it enters the second crystal. Initial numerical simulations using a custom model, implemented in MATLAB® for the proposed linear, two-stage, cascaded, OPGaAs nanosecond OPO suggest a significant improvement in conversion efficiency over a single-stage device can be obtained. The numerical model includes diffraction, crystal loss, phase mismatch, pump depletion, and back conversion, it assumes monochromatic waves and neglects group velocity dispersion. For a singly resonant oscillator (SRO) pumped by a 2.052 μm Tm:Ho,YLF laser with 45 ns pulse width, the addition of the second crystal in the cavity increases idler generation by a factor of two and exceeds the quantum defect limit. Experimentally, the cascaded OPGaAs OPO demonstrated a ~3% slope efficiency. Limited output may be the result of improper phase matching, given that two distinct idlers wavelengths were observed. Tuning the OPGaAs crystals to generate identical idlers should improve efficiency. The linewidth of the signal serving to pump the second-stage likely reduced efficiency as well. To our knowledge, this is the first cascaded OPO using OPGaAs, and the first cascaded OPO operating in the longwave infrared where the same longwave idler was generated in the both crystals.
Download or read book Tunable Laser Applications written by F.J. Duarte and published by CRC Press. This book was released on 2008-08-26 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunability has added an important dimension to a variety of laser devices and led to new systems and applications. From laser spectroscopy to Bose-Einstein condensation, the one nexus is the tunable laser. Incorporating nine new chapters since the first edition, Tunable Laser Applications, Second Edition reflects the significant developments
Download or read book Characterization of an Intracavity Optical Parametric Oscillator written by Daniel Sandberg and published by . This book was released on 2005 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Continuous wave Intracavity Optical Parametric Oscillators written by Graham Alexander Turnbull and published by . This book was released on 1999 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Single Frequency Intracavity Optical Parametric Oscillator written by Haim Abitan and published by . This book was released on 2001 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Continuous Wave Single Frequency Intracavity Optical Parametric Oscillator Based Upon the Twisted mode Technique written by Lea Christina Heering and published by . This book was released on 2014 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystal Nonlinear Optics written by Arlee Smith and published by . This book was released on 2018-02-21 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced textbook on crystal nonlinear optics.
Download or read book Narrow linewidth Widely Tunable Intracavity Optical Parametric Oscillators for Mid infrared Spectroscopy written by Lea Christina Heering and published by . This book was released on 2019 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intracavity Terahertz Optical Parametric Oscillators written by David A. Walsh and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intracavity KTP Optical Parametric Oscillator Driven by a KLM Nd GGG Laser with a Single AO Modulator written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Optical Engineering Pho Z pages 2049 3050 written by Ronald G. Driggers and published by CRC Press. This book was released on 2003 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compiled by 330 of the most widely respected names in the electro-optical sciences, the Encyclopedia is destined to serve as the premiere guide in the field with nearly 2000 figures, 560 photographs, 260 tables, and 3800 equations. From astronomy to x-ray optics, this reference contains more than 230 vivid entries examining the most intriguing technological advances and perspectives from distinguished professionals around the globe. The contributors have selected topics of utmost importance in areas including digital image enhancement, biological modeling, biomedical spectroscopy, and ocean optics, providing thorough coverage of recent applications in this continually expanding field.
Download or read book Mid infrared Pulse Generation Via Orientation Patterned Gallium Arsenide Parametric Devices written by Qiang Fu and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Degenerate Ultra broadband Opos for Mid infrared Frequency Comb Generation written by Nicholas Charles Leindecker and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis consolidates an extensive study of optical parametric oscillators (OPOs) optimized for generating extremely broad bandwidth output in the mid-infrared (mid-IR). Optical parametric oscillation is a well-known frequency conversion technique employing an optical element with significant second order nonlinear susceptibility, situated in an appropriate resonator, to convert a shorter wavelength pump laser to longer wavelength OPO outputs. However, our technique is distinct in its optimization for simultaneous oscillation over an extremely broad bandwidth. This is accomplished with a doubly-resonant design, operated at or near degeneracy in a low-dispersion resonator containing a bandwidth-optimized non-linear element and pumped by a mode-locked near-infrared fiber laser. Such an OPO is suitable for generating spectrally and spatially bright, broadband phase- and frequency-locked combs in the absorption-rich mid-IR 'molecular fingerprint' region. Our synchronously pumped system architecture is readily applied to systems operating at other center wavelengths and repetition rates. The comparative simplicity allows new instruments to be envisioned, and is expected to be of great practical interest. Several sync-pumped OPO systems were studied, the first of which are based on periodically poled lithium niobate (PPLN) and pumped by commercial ultrafast erbium fiber lasers at 1.55 μm. With an Er/PPLN OPO system we obtained a pump threshold of 9 mW, output power of 60 mW, and 20dB bandwidth extending from 2.5 to 3.8 μm. Through collaboration, we benefitted from custom orientation patterned gallium arsenide (OP-GaAs) and state-of-the-art femtosecond thulium fiber lasers at 2.0 μm. These components allow us to operate sync-pumped OPOs producing more than 35-mW of output power, 30dB bandwidths extending from 2.6 to 6.1 μm, and pump thresholds of less than 20mW. The broad mid-infrared spectral bands addressed by these sources, combined with the underlying comb structure, make them uniquely suitable for advanced spectroscopic techniques, including "dual-comb" FTIR spectrometry. We have demonstrated the utility and versatility of these OPO sources for sensitive intracavity spectroscopy, remote, and micro-scale spectral absorption measurements.
Download or read book Synchronously Pumped Optical Parametric Oscillator with Intracavity Difference Frequence Mixing written by Michael Edward Dearborn and published by . This book was released on 1998 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
