Results 231 to 240 of about 12,185 (275)

Progress and trend of narrow-linewidth lasers

Science China Technological Sciences, 2013
High frequency stability, narrow-linewidth lasers have been long dreamed of since the invention of the laser. They have recently developed dramatically due to the advent of optical clocks. State-of-the-art narrow-linewidth lasers have been constructed by using the Pound-Drever-Hall (PDH) technique to lock the laser frequencies to the resonance of ultra-
Yanyi Jiang, Zhiyi Bi, Jiang Yanyi
exaly   +2 more sources

Linewidth narrowing of polaritons

Physical Review B, 1996
Polaritons are formed when the electromagnetic field couples to excitons in a semiconductor. In their high-quality semiconductor quantum microcavities, Fisher et al. observe an unexpected decrease in the polariton linewidth (the full width at half maximum) near resonance.
, Kinsler, , Whittaker
openaire   +2 more sources

Narrow-Linewidth Fano Laser

Conference on Lasers and Electro-Optics, 2022
By exploiting Fano resonances, a microscopic laser with a linewidth >20 times smaller than previous microscopic lasers is experimentally demonstrated. We also show that the linewidth can be further improved by engineering the Fano lineshape.
Yi Yu, Aurimas Sakanas, Elizaveta Semenova, Kresten Yvind, Jesper Mørk   +4 more
openaire   +1 more source

Narrow-linewidth unstable resonator

Optics Letters, 1988
We describe the use of an asymmetric feedback ring in an unstable resonator to obtain arbitrarily narrow-linewidth radiation across the full available aperture. We demonstrate its use with an electric-discharge XeCl laser to produce single-line radiation with a linewidth of 0.15 cm−1.
D, Cooper, L L, Tankersley, J, Reintjes
openaire   +2 more sources

Future Narrow Linewidth Lasers

Optical Fiber Communication Conference, 2015
We describe the challenges and solutions for future narrow linewidth lasers with small footprint. We fabricated DR laser array based narrower linewiedth TLS. We introduce ITXA of a co-packaged DFB array based TLS and InP-based modulator.
Toshikazu Mukaihara, Toshio Kimura, Hiroyuki Koshi   +2 more
openaire   +1 more source

Hybrid integrated narrow-linewidth semiconductor lasers

Applied Optics, 2023
Integrated narrow-linewidth lasers are the key devices in compact coherent optical systems of metrology, sensing, and optical microwave generation. Here, we demonstrate a hybrid integrated laser based on an optical negative feedback scheme.
Baoshuai Li, Weiqiang Wang, Honglei Yang, Hao Liu, Sai T. Chu, Brent Little, Yuxia Song, Boren Guan, Wenfu Zhang, Mingyu Li   +9 more
openaire   +2 more sources

Linewidth instabilities in narrow-linewidth flashlamp-pumped dye laser oscillators

Applied Optics, 1988
Linewidth instabilities in double-longitudinal-mode (250 MHz
F J, Duarte, J J, Ehrlich, S P, Patterson, S D, Russell, J E, Adams   +4 more
openaire   +2 more sources

Narrow linewidth unstable resonators

Annual Meeting Optical Society of America, 1988
We have previously demonstrated that a feedback ring in an unstable resonator can be useful in providing narrow bandwidth radiation across the full available aperture of the resonator. In this configuration the light traveling in the forward direction in the ring passes through frequency-narrowing etalons while it is collimated and is then coupled back
D. Cooper, J. L. Dexter, L. L. Tankersley, John F. Reintjes   +3 more
openaire   +1 more source

Narrow-Linewidth Lasers on a Silicon Chip

2014
Diode-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
openaire   +1 more source

Narrow-Linewidth Microlasers on Silicon

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
After reviewing several laser sources based on high-Q microtoroid lasers, the recent observation of fundamental linewidths as narrow as 4 Hz in microtoroid lasers will be described. Inverse-power (Schawlow-Townes) broadening is observed.
Kerry Vahala, Lan Yang, Tao Lu
openaire   +1 more source