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Narrow linewidth characteristics of interband cascade lasers
, 2020Narrow-linewidth mid-infrared laser sources are highly demanding for high-resolution gas spectroscopy applications. Interband cascade lasers (ICLs) are power-efficient laser sources emitting in the mid-infrared range.
Yu Deng +6 more
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Ultra-narrow-linewidth Brillouin/Erbium Fiber Laser
Conference on Lasers and Electro-Optics, 2017Ultra-narrow-linewidth lasers are of great interest in many applications, such as precise spectroscopy, optical communications, and sensors. Stimulated Brillouin scattering (SBS), as one of the main nonlinear effects in fibers, is capable of generating narrow-linewidth light emission. We establish a compact Brillouin/erbium fiber laser (BEFL) utilizing
Mo Chen +4 more
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Near Infrared Ultra-Narrow-Linewidth Laser
Conference on Lasers and Electro-Optics, 2020We report on self-injection-locked near infrared laser technology using whisper-gallery-mode resonators. The laser linewidth is suppressed by 104 and has an instantaneous linewidth in the sub-10 Hertz range. The laser is used for generating stable reference light for atomic clocks.
Yu-Hung Lai +6 more
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Narrow-linewidth quantum cascade laser at 86 μm
Optics Letters, 2014We report on a narrow-linewidth distributed-feedback quantum cascade laser at 8.6 μm that is optical-feedback locked to a high-finesse V-shaped cavity. The spectral purity of the quantum cascade laser is fully characterized using a high-sensitivity optical frequency discriminator, leading to a 1 ms linewidth of less than 4 kHz and a minimum laser ...
Eugenio Fasci +8 more
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Using Loss to Narrow Plasmon Linewidths
Imaging and Applied Optics Congress, 2020Lossy materials can be used in nanoplasmonic systems to narrow plasmon linewidths, which is desirable for biosensing applications. A scattering cross section linewidth of about 30 nm is found for gold nanoparticles in the lossy P3HT.
Ryan Peck +5 more
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Narrow-Linewidth Lasers on a Silicon Chip
2014Diode-pumped distributed-feedback (DFB) channel waveguide lasers were demonstrated in Er3+-doped and Yb3+-doped Al2O3 on standard thermally ox-idized silicon substrates. Uniform surface-relief Bragg gratings were patterned by laser-interference lithography and etched into the SiO2 top cladding. The maxi-mum grating reflectivity exceeded 99%. Monolithic
Bernhardi, Edward, Pollnau, Markus
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High power, narrow linewidth fiber amplifiers
Optical Amplifiers and Their Applications/Coherent Optical Technologies and Applications, 2006Amplification of narrow linewidth signals in optical fibers is limited by stimulated Brillouin scattering (SBS). We discuss novel fiber designs that limit SBS allowing the amplification of narrow linewidth signals to kilowatt power levels.
Stuart Gray +7 more
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High power, narrow linewidth fiber lasers
SPIE Proceedings, 2006Single transverse mode fiber lasers have recently achieved output powers at the kilowatt level. These breakthroughs can be attributed to the maturation of high power diode pump technology at 980 nm and the use of large mode area (LMA) fibers. In the continous wave (cw) operation regime, LMA fibers, through their reduction of device length and increase ...
Donnell Walton +7 more
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Advances in wide-tuning and narrow-linewidth external-cavity diode lasers
Science China Information Sciences, 2022Q. Cui +13 more
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