Results 11 to 20 of about 3,885 (181)

Electrically pumped soliton microcombs on thin-film lithium niobate. [PDF]

Nanophotonics
Abstract Thin‐film lithium niobate (TFLN) has enabled efficient on‐chip electro‐optic modulation and frequency conversion for information processing and precision measurement. Extending these capabilities with optical frequency combs unlocks massively parallel operations and coherent optical‐to‐microwave transduction, which are achievable in TFLN ...
Lv X, Wang Z, Xu T, Yang C, Jin X, Nie B, Qian D, Liu Y, Zhu K, Ni B, Gong Q, Bo F, Yang QF.   +12 more
europepmc   +2 more sources

Narrow laser-linewidth measurement using short delay self-heterodyne interferometry

Optics Express, 2022
Delayed self-heterodyne interferometry is a commonly used technique for the measurement of laser linewidth. It typically requires the use of a very long delay fiber when measuring narrow linewidth (especially linewidths in the kHz-range) lasers. The use of long fibers can result in system losses and the introduction of 1/f noise that causes spectral ...
Zhongan Zhao, Zhenxu Bai, Duo Jin, Yaoyao Qi, Jie Ding, Bingzheng Yan, Yulei Wang, Zhiwei Lu, Richard P. Mildren   +8 more
openaire   +2 more sources

Low phase noise THz generation from a fiber-referenced Kerr microresonator soliton comb

Communications Physics, 2022
Low phase-noise THz wave generation is in high demand for applications such as wireless communications and radars. Here, the authors generate low-noise THz waves via photodetection of the carrier of a Kerr frequency comb, which is repetition-rate ...
Naoya Kuse, Kenji Nishimoto, Yu Tokizane, Shota Okada, Gabriele Navickaite, Michael Geiselmann, Kaoru Minoshima, Takeshi Yasui   +7 more
doaj   +1 more source

High-power free-running single-longitudinal-mode diamond Raman laser enabled by suppressing parasitic stimulated Brillouin scattering

High Power Laser Science and Engineering, 2023
A continuous-wave (CW) single-longitudinal-mode (SLM) Raman laser at 1240 nm with power of up to 20.6 W was demonstrated in a free-running diamond Raman oscillator without any axial-mode selection elements.
Yuxuan Liu, Chengjie Zhu, Yuxiang Sun, Richard P. Mildren, Zhenxu Bai, Baitao Zhang, Weibiao Chen, Dijun Chen, Muye Li, Xuezong Yang, Yan Feng   +10 more
doaj   +1 more source

High Efficient Random Laser with Cavity Based on the Erbium-Doped Germanophosphosilicate Artificial Rayleigh Fiber

Photonics, 2023
The Erbium “random” laser, based on the artificial Rayleigh fiber, has been comparatively studied in detail under two different pump conditions: 974.5 and 1485 nm pumping wavelengths.
Sergei Popov, Andrey Rybaltovsky, Alexei Bazakutsa, Alexander Smirnov, Dmitry Ryakhovskiy, Viktor Voloshin, Alexander Kolosovskii, Igor Vorob’ev, Viktor Isaev, Yuriy Chamorovskiy, Denis Lipatov, Oleg Butov   +11 more
doaj   +1 more source

Chirped Microwave Signals Generation Using a Distributed Feedback Laser With Alternating Structure of Active- and Passive-Cavity

IEEE Photonics Journal, 2021
We proposed a new type of distributed feedback laser with alternating active- and passive-cavities (APC DFB), which enjoys the same quantum well layer where the butt-joint re-growth process can be avoided.
Changda Xu, Ya Jin, Jian Wang, Wenhui Sun, Liangming Xiong, Yinfang Chen, Wei Chen, Ninghua Zhu   +7 more
doaj   +1 more source

Narrow-Linewidth 852-nm DBR-LD with Self-Injection Lock Based on High-Finesse Optical Cavity Filtering

Photonics, 2023
Narrow-linewidth lasers have a high spectral purity, long coherent length, and low phase noise, so they have important applications in atomic clocks, precision measurement, and quantum computing. We inject a transmitted laser from a narrow-linewidth (∼15
Lili Hao, Rui Chang, Xiaokai Hou, Jun He, Junmin Wang   +4 more
doaj   +1 more source

Linewidth and frequency jitter measurement of an erbium-doped fiber ring laser by using a loss-compensated, delayed self-heterodyne interferometer [PDF]

, 1992
The single-mode line width of erbium-doped, single-frequency, fiber ring laser has been measured by using a newly developed loss-compensated delayed self-heterodyne interferometer that has a resolution of less than 600 Hz.
Dawson, Jay W., Park, Namkyoo, Vahala, Kerry J.   +2 more
core   +1 more source

Sideband locking of a single-section semiconductor distributed-feedback laser in an optical phase-lock loop [PDF]

, 2009
The bandwidth and performance of optical phase-lock loops (OPLLs) using single-section semiconductor lasers (SCLs) are severely limited by the nonuniform frequency modulation response of the lasers.
Liang, Wei, Rakuljic, George, Satyan, Naresh, Vasilyev, Arseny, Yariv, Amnon   +4 more
core   +1 more source

Discrete mode laser diodes with ultra narrow linewidth emission <3kHz [PDF]

, 2008
Ex-facet, free-running ultra-low linewidth (
Anandarajah, Prince M., Barry, Liam P., Cai, B., Herbert, C., Jones, D., Kaszubowska-Anandarajah, Aleksandra, Kelly, Brian, O'Carroll, John, O'Gorman, J., Perry, Philip, Phelan, Richard, Rensing, Marc, Stopford, Jennifer   +12 more
core   +1 more source