Narrowband Pulsed THz Source Using Eyesafe Region Fiber Lasers and a Nonlinear Crystal

Leigh, Matthew; Shi, Wei; Zong, Jie; Yao, Zhidong; Jiang, Shibin; Peyghambarian, N.

doi:10.1109/lpt.2008.2008195

Cited by 14 publications

(5 citation statements)

References 22 publications

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“…One of its merits is its broadband and frequency-agile tunability that can be achieved by rotating the crystal. In some traditional non-oxide infrared crystals (such as GaSe [15,16,[28][29][30][31][32][33][34] and ZnGeP 2 [35][36][37][38]), birefringent PMs are extended to THz DFG.…”

Section: Birefringent Phase-matchingmentioning

confidence: 99%

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Phase-Matching in Nonlinear Crystal-Based Monochromatic Terahertz-Wave Generation

Liu

Niu

et al. 2022

Crystals

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Optically pumped nonlinear frequency down conversion is a proven approach for monochromatic terahertz (THz)-wave generation that provides superior properties such as continuous and wide tunability as well as laser-like linewidth and beam quality. Phase-matching (PM) is an important connection between the pump sources and nonlinear crystals and determines the direction of energy flow (as well as the output power). In past decades, a variety of peculiar PM configurations in the THz region have been invented and are different from the traditional ones in the optical region. We summarize the configurations that have been applied in nonlinear THz-wave generation, which mainly fall in two categories: scalar (collinear) PM and vector PM (including macroscopic noncollinear PM and microscopic vector PM). The development of this technique could relax the matching conditions in a wide range of nonlinear crystals and pump wavelengths and could finally promote the improvement of coherent THz sources.

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Section: Birefringent Phase-matchingmentioning

confidence: 99%

“…An advantage of birefringent PMs is that there are multiple choices of pump sources. For example, GaSe-DFGs have been pumped at wavelengths of ~1 µm [15,32], ~1.5 µm [31], and ~2 µm [34]. A drawback is the limited kinds of media.…”

Section: Birefringent Phase-matchingmentioning

confidence: 99%

Phase-Matching in Nonlinear Crystal-Based Monochromatic Terahertz-Wave Generation

Liu

Niu

et al. 2022

Crystals

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“…Barbieri et al has fabricated a continuous wave QCL that can generate 25 µW power at 4.4 THz at 52 K [Barbieri et al(2003)]. Recently, the highest power THz source, pumped by an eye-safe, narrow band fiber laser system with an output of 26.4 mW, has been developed [Leigh et al (2009)]. Among all two terminal solid-state sources, higher RF power levels of 23 µW at the fundamental frequency of 342 GHz and 0.6 µW at the third harmonic frequency of 1.02 THz is measured with Resonant Tunneling Diode (RTD) in the GaInAs/AlAs material systems, but these devices were operated in a "quasi CW mode" with a pulse length of 0.3 ms and a repetition rate of 300 Hz [Orihashi et al (2005)].…”

Section: Application and State-of-the-art Thz-sourcesmentioning

confidence: 99%

Wide Band Gap Semiconductor Based Highpower ATT Diodes In The MM-wave and THz Regime: Device Reliability, Experimental Feasibility and Photo-sensitivity

Mukherjee¹

2010

Advanced Microwave and Millimeter Wave Technologies Semiconductor Devices Circuits and Systems

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“…High-power narrow-linewidth nanosecond lasers/amplifiers with good beam quality have a wide range of applications, such as direct-detection remote sensing, lidar and nonlinear frequency conversion [1][2][3][4][5][6][7]. However, the output power of a narrow-linewidth fiber laser is mostly limited by the stimulated Brillouin scattering (SBS) effect.…”

Section: Introductionmentioning

confidence: 99%

High power narrow-linewidth linearly polarized nanosecond all-fiber amplifier with near-diffraction-limited beam quality

Ran

et al. 2015

J. Opt.

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We present a monolithic high power narrow-linewidth linearly polarized nanosecond all-fiber laser in a master oscillator power amplifier configuration. The pulsed seed is generated by modulating a single-frequency continuous wave laser at 1064 nm using an electro-optic intensity modulator. In order to suppress stimulated Brillouin scattering (SBS), the pulse width is set to be ∼4 ns. When the repetition rate is set to be 20 MHz or 10 MHz, SBS has been observed in the main amplifier. The corresponding SBS thresholds are ∼100 W and 120 W respectively. At the repetition rate of 5 MHz, the pulse width is compressed to ∼3 ns and an average power of 136 W is obtained, corresponding to peak power of 8.5 kW. Further power scaling is limited by stimulated Raman scattering. At maximum output power, the beam quality (M2 factor) is ∼1.1 and the polarization extinction ratio is >15.8 dB.

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Narrowband Pulsed THz Source Using Eyesafe Region Fiber Lasers and a Nonlinear Crystal

Cited by 14 publications

References 22 publications

Phase-Matching in Nonlinear Crystal-Based Monochromatic Terahertz-Wave Generation

Phase-Matching in Nonlinear Crystal-Based Monochromatic Terahertz-Wave Generation

Wide Band Gap Semiconductor Based Highpower ATT Diodes In The MM-wave and THz Regime: Device Reliability, Experimental Feasibility and Photo-sensitivity

High power narrow-linewidth linearly polarized nanosecond all-fiber amplifier with near-diffraction-limited beam quality

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