Phase-related noise characteristics of 780 nm band single-frequency lasers used in the cold atomic clock*

Zhang, Xi; Yang, Fei; Feng, Zitong; Zhao, Jiejun; Fang, Wei; Cai, Haiwen; Qu, Ronghui

doi:10.1088/1674-1056/28/7/074209

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…[1,2] Especially, the deep-UV lasers with narrow-linewidth (< 10 GHz) can improve the effect significantly for the abovementioned applications. [3,4] So far, using narrow-linewidth solid-state lasers as fundamental frequency sources for frequency conversion, has been the most popular method to produce UV lasers. [5][6][7][8][9][10][11][12][13][14] In addition, narrow-linewidth fiber lasers are also potential fundamental frequency sources, which can provide better-quality beams, improved compactness, higher stability and efficiency.…”

Section: Introductionmentioning

confidence: 99%

The 266-nm ultraviolet-beam generation of all-fiberized super-large-mode-area narrow-linewidth nanosecond amplifier with tunable pulse width and repetition rate

Yang

et al. 2022

Chinese Phys. B

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We report on a compact, stable, all-fiberized narrow-linewidth (0.045 nm) pulsed laser source emitting laser beam with a wavelength of 266 nm, and tunable pulse width and repetition rate. The system is based on all-fiberized nanosecond amplifier architecture, which consists of Yb-doped fiber preamplifiers and a super-large-mode-area Yb-doped fiber power amplifier. The fiber amplifier with a core of 50 μm is used to raise the threshold of the stimulated Brillouin scattering (SBS) effect and to obtain high output power and single pulse energy. Using lithium triborate (LBO) crystal and beta-barium borate (BBO) crystal for realizing the second-harmonic generation (SHG) and fourth-harmonic generation (FHG), we achieve 17 μJ (1.73 W) and 0.66 μJ (66 mW), respectively, at wavelengths of 532 nm and 266 nm and a repetition rate of 100 kHz with pulse width of 4 ns. This source has great potential applications in fluorescence research and solar-blind ultraviolet optical communication.

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Section: Introductionmentioning

confidence: 99%

The 266-nm ultraviolet-beam generation of all-fiberized super-large-mode-area narrow-linewidth nanosecond amplifier with tunable pulse width and repetition rate

Yang

et al. 2022

Chinese Phys. B

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“…Single-frequency fiber lasers operating at ∼ 2 µm have attracted intense attention for their wide-ranging applications, from high-resolution spectroscopy and noninvasive medicine to coherent beam combining, due to their outstanding properties of low noise, narrow linewidth and at an eye-safe wavelength regime. [1][2][3][4] Up to now, ∼ 2 µm single-frequency fiber lasers have been achieved in various cavity structures, including ring cavities, distributed feedback (DFB) cavities and distributed Bragg reflector (DBR) cavities. [5][6][7] More recently, Walasik et al reported a 2 µm single-frequency all-fiber DFB laser source employing fiber Bragg gratings (FBGs) which has a laser linewidth of 5 kHz.…”

Section: Introductionmentioning

confidence: 99%

Single-frequency distributed Bragg reflector Tm:YAG ceramic derived all-glass fiber laser at 1.95 μm

Qian¹,

Wu²,

Tang³

et al. 2022

Chinese Phys. B

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A 135 mW single-frequency distributed Bragg reflector fiber laser at 1.95 μm was obtained based on a Tm: YAG ceramic derived all-glass fiber. The fiber laser achieved an optical signal-to-noise ratio of ~ 77 dB. Moreover, the threshold and the linewidth of the single-frequency laser were measured to be 15.4 mW and 4.5 kHz, respectively. In addition, the measured relative intensity noise was less than -140 dB/Hz at frequencies of over 10 MHz. The results show that the as-drawn Tm: YAG ceramic derived all-glass fiber is highly promising for ~ 2 μm single-frequency fiber laser applications.

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Optical vector analysis with attometer resolution, 90-dB dynamic range and THz bandwidth

Qing

Tang

et al. 2019

Nat Commun

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Optical vector analysis (OVA) capable of achieving magnitude and phase responses is essential for the fabrication and application of emerging optical devices. Conventional OVA often has to make compromises among resolution, dynamic range, and bandwidth. Here we show an original method to meet the measurement requirements for ultra-wide bandwidth, ultra-high resolution, and ultra-large dynamic range simultaneously, based on an asymmetric optical probe signal generator (ASG) and receiver (ASR). The ASG and ASR remove the measurement errors introduced by the modulation nonlinearity and enable an ultra-large dynamic range. Thanks to the wavelength-independence of the ASG and ASR, the measurement range can increase by 2 N times by applying an N-tone optical frequency comb without complicated operation. In an experiment, OVA with a resolution of 334 Hz (2.67 attometer in the 1550-nm band), a dynamic range of > 90 dB and a measurement range of 1.075 THz is demonstrated.

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Phase-related noise characteristics of 780 nm band single-frequency lasers used in the cold atomic clock*

Cited by 3 publications

References 20 publications

The 266-nm ultraviolet-beam generation of all-fiberized super-large-mode-area narrow-linewidth nanosecond amplifier with tunable pulse width and repetition rate

The 266-nm ultraviolet-beam generation of all-fiberized super-large-mode-area narrow-linewidth nanosecond amplifier with tunable pulse width and repetition rate

Single-frequency distributed Bragg reflector Tm:YAG ceramic derived all-glass fiber laser at 1.95 μm

Optical vector analysis with attometer resolution, 90-dB dynamic range and THz bandwidth

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