Single-frequency Er:YAG ceramic pulsed laser with frequency stability close to 100 kHz

Chaoyong Chen; Chunqing Gao; Huixing Dai; Qing Wang

doi:10.3788/COL202220.041402

Journals >Chinese Optics Letters >Volume 20 >Issue 4 >Page 041402 > Article

Chinese Optics Letters
Vol. 20, Issue 4, 041402 (2022)

Single-frequency Er:YAG ceramic pulsed laser with frequency stability close to 100 kHz

Chaoyong Chen^1、2, Chunqing Gao^1、2、*, Huixing Dai^1、2, and Qing Wang^1、2

Author Affiliations

¹School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China

²Key Laboratory of Information Technology, Ministry of Industry and Information Technology, Beijing 100081, China

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DOI: 10.3788/COL202220.041402 Cite this Article Set citation alerts

Chaoyong Chen, Chunqing Gao, Huixing Dai, Qing Wang. Single-frequency Er:YAG ceramic pulsed laser with frequency stability close to 100 kHz[J]. Chinese Optics Letters, 2022, 20(4): 041402 Copy Citation Text

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Abstract

A single-frequency 1645 nm pulsed laser with frequency stability close to 100 kHz was demonstrated. The laser oscillator is injection-seeded by a single-frequency narrow linewidth

Er : Y_{3} {Al}_{5} O_{12}

(Er:YAG) nonplanar ring oscillator and frequency stabilized by the modified Pound–Drever–Hall method. The pulse repetition rate can be set from 100 to 500 Hz with the frequency stability from 82.72 kHz to 134.44 kHz and pulse energy from 9.84 mJ to 19.55 mJ. To our knowledge, this is the best frequency stability of a single-frequency pulsed laser with injection-seeding.

Keywords

high-frequency stability injection-seeding single-frequency pulse

z_{k} = s_{k} \exp (j 2 π f k T_{s}) + n_{k},

(1)

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P_{m} = \frac{1}{2 M} \sum_{k = 0}^{2 M - 1} R_{k} \exp (- \frac{π i m k}{M}),

(2)

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R_{k} = {SNR}_{sp} \exp [- 2 {(π Δ ω T_{s} k)}^{2} + j 4 π v T_{s} \frac{k}{λ}] + δ_{k},

(3)

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Δ ω = \sqrt{\ln 2} / (\sqrt{2} π Δ T)

(4)

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〈 p_{k} \cdot p_{m}^{*} 〉 = P_{m} δ_{k - m}, {| p_{m} |}^{2} = P_{m},

(5)

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z_{k} = \sum_{m = 0}^{2 M - 1} p_{m} \exp (\frac{i m k π}{M}) .

(6)

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σ_{ν}^{2} (τ) = \frac{1}{2} {〈 {(ν_{i + 1} - ν_{i})}^{2} 〉}_{τ},

(7)

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Chaoyong Chen, Chunqing Gao, Huixing Dai, Qing Wang. Single-frequency Er:YAG ceramic pulsed laser with frequency stability close to 100 kHz[J]. Chinese Optics Letters, 2022, 20(4): 041402

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