The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Peter J Delfyett - One of the best experts on this subject based on the ideXlab platform.
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a semiconductor based 10 ghz optical comb source with sub 3 fs shot noise limited timing jitter and sim 500 hz comb linewidth
IEEE Photonics Technology Letters, 2010Co-Authors: Ibrahim Ozdur, Dimitrios Mandridis, Sarper Ozharar, Nazanin Hoghooghi, M. Akbulut, F Quinlan, Peter J DelfyettAbstract:In this work, a 10.287-GHz semiconductor-based harmonically mode-locked laser with 1000 finesse Intracavity Etalon is demonstrated. The timing jitter integrated from 1 Hz to 100 MHz (Nyquist) is 3 fs (14 fs). The optical linewidth is ~500 Hz and the optical frequency stability is <150 kHz over 30 s.
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A Semiconductor-Based 10-GHz Optical Comb Source With Sub 3-fs Shot-Noise-Limited Timing Jitter and $\sim$ 500-Hz Comb Linewidth
IEEE Photonics Technology Letters, 2010Co-Authors: Ibrahim Ozdur, Franklyn Quinlan, Dimitrios Mandridis, Sarper Ozharar, Nazanin Hoghooghi, M. Akbulut, Peter J DelfyettAbstract:In this work, a 10.287-GHz semiconductor-based harmonically mode-locked laser with 1000 finesse Intracavity Etalon is demonstrated. The timing jitter integrated from 1 Hz to 100 MHz (Nyquist) is 3 fs (14 fs). The optical linewidth is ~500 Hz and the optical frequency stability is
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harmonically mode locked semiconductor based lasers as high repetition rate ultralow noise pulse train and optical frequency comb sources
Journal of Optics, 2009Co-Authors: Franklyn Quinlan, Sarper Ozharar, S Gee, Peter J DelfyettAbstract:Recent experimental work on semiconductor-based harmonically mode-locked lasers geared toward low noise applications is reviewed. Active, harmonic mode-locking of semiconductor-based lasers has proven to be an excellent way to generate 10 GHz repetition rate pulse trains with pulse-to-pulse timing jitter of only a few femtoseconds without requiring active feedback stabilization. This level of timing jitter is achieved in long fiberized ring cavities and relies upon such factors as low noise rf sources as mode-lockers, high optical power, Intracavity dispersion management and Intracavity phase modulation. When a high finesse Etalon is placed within the optical cavity, semiconductor-based harmonically mode-locked lasers can be used as optical frequency comb sources with 10 GHz mode spacing. When active mode-locking is replaced with regenerative mode-locking, a completely self-contained comb source is created, referenced to the Intracavity Etalon.
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Frequency stabilized optical comb source with high finesse Intracavity Etalon
Proceedings of SPIE, 2009Co-Authors: Ibrahim Ozdur, Mehmetcan Akbulut, Franklyn Quinlan, Dimitrios Mandridis, Sarper Ozharar, Peter J DelfyettAbstract:Mode-locked lasers have applications in signal processing and communications such as analog to digital conversion, arbitrary waveform generation and wavelength division multiplexing. For such applications low noise and phase coherent frequency stabilized optical combs are needed. In this work we report a low noise, Pound-Drever Hall frequency stabilized, semiconductor mode-locked laser at 10.287GHz centered at 1550nm with 1000-Finesse sealed, ultralow insertion loss Intracavity Etalon. The output optical power of the mode locked laser is ~5mW.
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Frequency stabilized mode locked laser with 1000 finesse Intracavity Etalon
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Ibrahim Ozdur, Mehmetcan Akbulut, Franklyn Quinlan, Dimitrios Mandridis, Sarper Ozharar, Peter J DelfyettAbstract:A low noise, frequency stabilized, semiconductor based, 10.287 GHz mode-locked laser with 1000 finesse Intracavity Etalon is demonstrated with a timing jitter (1Hz – 100MHz) of 10.9 fs and optical frequency fluctuations less than 150 kHz.
Sebastien Chenais - One of the best experts on this subject based on the ideXlab platform.
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Broadly tunable (440-670 nm) solid-state organic laser with disposable capsules
Applied Physics Letters, 2013Co-Authors: Oussama Mhibik, Sebastien Forget, Alain Siove, Tatiana Leang, Sebastien ChenaisAbstract:An innovative concept of thin-film organic solid-state laser is proposed, with diffraction-limited output and a broad tuning range covering the visible spectrum under UV optical pumping. The laser beam is tunable over 230 nm, from 440 to 670 nm, with a 3 nm full width at half maximum typical spectral width. The structure consists of a compact fixed bulk optical cavity, a polymeric Intracavity Etalon for wavelength tuning, as well as five different disposable glass slides coated with a dye-doped polymer film, forming a very simple and low-cost gain medium. The use of interchangeable/disposable "gain capsules" is an alternative solution to photodegradation issues, since gain chips can be replaced without realignment of the cavity. The laser lifetime of a single chip in ambient conditions and without encapsulation was extrapolated to be around 107 pulses at a microjoule energy-per-pulse level.
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highly efficient diffraction limited laser emission from a vertical external cavity surface emitting organic laser
Optics Letters, 2010Co-Authors: Hadi Rabbanihaghighi, Sebastien Forget, Sebastien Chenais, Alain SioveAbstract:We report on a solid-state laser structure functioning as the organic counterpart of a vertical external-cavity surface-emitting laser (VECSEL) design. The gain medium is a poly(methyl methacrylate) film doped with Rhodamine 640, spin casted onto the high-reflectivity mirror of a plano–concave resonator. Upon pumping by 7ns pulses at 532nm, a diffraction-limited beam (M2=1) was obtained, with a conversion efficiency of 43%; higher peak powers (2kW) could be attained when resorting to shorter (0.5ns) pump pulses. The spectrum was controlled by the thickness of the active layer playing the role of an Intracavity Etalon; tunability is demonstrated at over and up to 20nm.
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Highly-efficient, diffraction-limited laser emission from a Vertical External Cavity Surface-emitting Organic Laser
Optics Letters, 2010Co-Authors: Hadi Rabbani-haghighi, Sebastien Forget, Sebastien Chenais, Alain SioveAbstract:We report on a solid-state laser structure being the organic counterpart of the Vertical External-Cavity Surface-Emitting Laser (VECSEL) design. The gain medium is a poly (methyl methacrylate) film doped with Rhodamine 640, spin-casted onto the High-Reflectivity mirror of a plano-concave resonator. Upon pumping by 7-ns pulses at 532 nm, a diffraction-limited beam (M²=1) was obtained, with a conversion efficiency of 43%; higher peak powers (2kW) could be attained when resorting to shorter (0.5 ns) pump pulses. The spectrum was controlled by the thickness of the active layer playing the role of an Intracavity Etalon; tunability is demonstrated over up to 20 nm.
Alain Siove - One of the best experts on this subject based on the ideXlab platform.
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Broadly tunable (440-670 nm) solid-state organic laser with disposable capsules
Applied Physics Letters, 2013Co-Authors: Oussama Mhibik, Sebastien Forget, Alain Siove, Tatiana Leang, Sebastien ChenaisAbstract:An innovative concept of thin-film organic solid-state laser is proposed, with diffraction-limited output and a broad tuning range covering the visible spectrum under UV optical pumping. The laser beam is tunable over 230 nm, from 440 to 670 nm, with a 3 nm full width at half maximum typical spectral width. The structure consists of a compact fixed bulk optical cavity, a polymeric Intracavity Etalon for wavelength tuning, as well as five different disposable glass slides coated with a dye-doped polymer film, forming a very simple and low-cost gain medium. The use of interchangeable/disposable "gain capsules" is an alternative solution to photodegradation issues, since gain chips can be replaced without realignment of the cavity. The laser lifetime of a single chip in ambient conditions and without encapsulation was extrapolated to be around 107 pulses at a microjoule energy-per-pulse level.
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highly efficient diffraction limited laser emission from a vertical external cavity surface emitting organic laser
Optics Letters, 2010Co-Authors: Hadi Rabbanihaghighi, Sebastien Forget, Sebastien Chenais, Alain SioveAbstract:We report on a solid-state laser structure functioning as the organic counterpart of a vertical external-cavity surface-emitting laser (VECSEL) design. The gain medium is a poly(methyl methacrylate) film doped with Rhodamine 640, spin casted onto the high-reflectivity mirror of a plano–concave resonator. Upon pumping by 7ns pulses at 532nm, a diffraction-limited beam (M2=1) was obtained, with a conversion efficiency of 43%; higher peak powers (2kW) could be attained when resorting to shorter (0.5ns) pump pulses. The spectrum was controlled by the thickness of the active layer playing the role of an Intracavity Etalon; tunability is demonstrated at over and up to 20nm.
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Highly-efficient, diffraction-limited laser emission from a Vertical External Cavity Surface-emitting Organic Laser
Optics Letters, 2010Co-Authors: Hadi Rabbani-haghighi, Sebastien Forget, Sebastien Chenais, Alain SioveAbstract:We report on a solid-state laser structure being the organic counterpart of the Vertical External-Cavity Surface-Emitting Laser (VECSEL) design. The gain medium is a poly (methyl methacrylate) film doped with Rhodamine 640, spin-casted onto the High-Reflectivity mirror of a plano-concave resonator. Upon pumping by 7-ns pulses at 532 nm, a diffraction-limited beam (M²=1) was obtained, with a conversion efficiency of 43%; higher peak powers (2kW) could be attained when resorting to shorter (0.5 ns) pump pulses. The spectrum was controlled by the thickness of the active layer playing the role of an Intracavity Etalon; tunability is demonstrated over up to 20 nm.
Klaus-jochen Boller - One of the best experts on this subject based on the ideXlab platform.
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Frequency control of a 1163 nm singly resonant OPO based on MgO:PPLN
Optics letters, 2010Co-Authors: Petra Groß, I.d. Lindsay, Christopher James Lee, M. Nittmann, Tobias Bauer, J Bartschke, U. Warring, A. Fischer, Alban Kellerbauer, Klaus-jochen BollerAbstract:We report the realization of a singly resonant optical parametric oscillator (SRO) that is designed to provide narrow-bandwidth, continuously tunable radiation at a wavelength of 1163 nm for optical cooling of osmium ions. The SRO is based on periodically poled, magnesium-oxide-doped lithium niobate and pumped at 532 nm. The output coupling of the resonant idler wave is adjusted to yield up to 400 mW of 1163 nm radiation, with a bandwidth of a few megahertz. For continuous frequency tuning of the idler wave, the SRO is equipped with an Intracavity Etalon, and the cavity length is controlled with a piezo-actuated mirror synchronized to the Etalon angle.
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Widely and Rapidly Tunable Semiconductor Master-Oscillator Fiber Amplifier Around 1080 nm
IEEE Photonics Technology Letters, 2006Co-Authors: B. Adhimoolam, M.e. Klein, I.d. Lindsay, Petra Groß, Christopher James Lee, Klaus-jochen BollerAbstract:We describe the wide and rapid wavelength tuning of a continuous-wave master-oscillator power-amplifier system consisting of a semiconductor-amplifier-based oscillator and an ytterbium (Yb)-doped fiber amplifier. The oscillator utilizes an acoustooptic tunable filter and an Intracavity Etalon to achieve wavelength tuning of 36 nm in 5 ms. The 50-mW output from the master oscillator was amplified to over 9 W in an Yb-doped fiber amplifier
Kensuke Kudo - One of the best experts on this subject based on the ideXlab platform.
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A compact external cavity wavelength tunable laser without an Intracavity Etalon
IEEE Photonics Technology Letters, 2006Co-Authors: Kenji Sato, J. De Merlier, Kenji Mizutani, Shinya Sudo, Shinya Watanabe, K. Tsuruoka, Koichi Naniwae, Kensuke KudoAbstract:We propose a novel external cavity wavelength tunable laser (ECTL) configuration without an Etalon inside the cavity. ECTL consists only of a semiconductor optical amplifier with an integrated phase section, and a liquid crystal tunable mirror. We successfully demonstrated excellent performances of the ECTL with fiber coupled output power of more than 50 mW over a 40-nm tuning range, sidemode suppression ratio of better than 45 dB, relative intensity noise of better than -148 dB/Hz, and linewidth of narrower than 2.3 MHz
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Over 50-mW fiber coupled power and 40-nm tuning range of an extremely compact external cavity wavelength tunable laser
31st European Conference on Optical Communications (ECOC 2005), 2005Co-Authors: Kenji Sato, J. De Merlier, Kenji Mizutani, Shinya Sudo, Shinya Watanabe, K. Tsuruoka, Koichi Naniwae, Kensuke KudoAbstract:We experimentally demonstrate very high fiber coupled power of more than 50 mW and 45-dB side mode suppression ratio (SMSR) with continuous tuning over the full C-band by an external cavity wavelength tunable laser without an Intracavity Etalon. (4 pages)
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High Power Full-Band External Cavity Wavelength Tunable Laser
2006 International Conference on Indium Phosphide and Related Materials Conference Proceedings, 1Co-Authors: Kenji Sato, Kensuke KudoAbstract:Wideband wavelength tunable lasers are now beginning to play important roles in dense wavelength-division multiplexing (DWDM) optical transmission systems, because these lasers can reduce the required number of inventory lasers and inventory costs. They are also key components in the evolution towards future photonic network systems, particularly in reconfigurable optical add/drop multiplexing (ROADM) systems and optical cross-connect (OXC) systems. However, before the tunable laser can be a viable alternative for the conventional fixed wavelength laser (e.g. DFB laser) it should have the same characteristics over its entire tuning range. Additionally, the device should only be marginally more expensive than its fixed counterpart. This paper reviews our recent activities on the development of high performance full-band wavelength tunable lasers. Our approach utilizes an external cavity configuration, which makes use of a liquid crystal (LC) tunable mirror. We first demonstrate high performance of an external cavity wavelength tunable laser (ECTL) with an Intracavity Etalon. This ECTL module shows a tuning range of 45 nm and output power of more than 14 dBm. We also explain an approach to realize a more compact ECTL with 40% reduced cavity length by eliminating the Intracavity Etalon, and show its excellent laser characteristics such as a fiber-coupled power of around 17 dBm, tuning range of over 40 nm, and a sidemode-suppression-ratio (SMSR) greater than 50 dB.
