200 kHz electro-optic switch for ultrafast laser systems

Nickel, D.; Stolzenburg, Christian; Beyertt, A.; Giesen, Adolf; Häußermann, Jürgen; Butze, Frank; Leitner, Martin

doi:10.1063/1.1867052

Cited by 21 publications

(6 citation statements)

References 19 publications

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“…According to their physical switching mechanism and principle, they can be classified as the thermo-optic switches [1,2] electro-optic switches [3,4] and liquid crystal optical switches [5,6]. Electro-optic switches and arrays have played an important role in modern communication systems due to their high speed, high extinction ratio, low crosstalk, low insertion loss and short switching time [7,8]. Compared with traditional inorganic materials, polymeric electro-optic materials possess high electro-optic coefficient, fast response speed, easy control of refractive index, and simple technology in processing, therefore, they are widely utilized in the fabrication of optic switches and modulators [9,10].…”

Section: Introductionmentioning

confidence: 99%

Design of integrated 1×2, 1×4 low driving voltage polymer electro-optic switches based on Y-fed directional couplers

Zheng

Yan

et al. 2009

Journal of Modern Optics

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2009) Design of integrated 1×2, 1×4 low driving voltage polymer electro-optic switches based on Y-fed directional couplers, Journal of Modern Optics, 56:5, 615-622, Two integrated 1 Â 2 and 1 Â 4 polymer electro-optic switches based on Y-fed directional couplers are designed and optimized in terms of the coupled mode theory, electro-optic modulation theory, conformal transforming method and image method. The principle of the 1 Â 2 electro-optic switch is described. Parameters including the core size, buffer layer thickness, electrode thickness, electrode width and electrode gap are optimized. Simulation results show that the length of the designed 1 Â 2 switch is about 3.126 mm, the driving voltages of the two branches are as low as 0.891 and À0.891 V, respectively, the crosstalk and insertion loss are less than À30 and 1.42 dB, respectively, within the operation wavelength from 1527 to 1574 nm. Under the same driving voltages, the 1 Â 4 optical switch with a total length of less than 7 mm can be switched by altering the voltages applied on the electrodes of the three Y-fed directional couplers. Simulation results from the beam propagation method (BPM) indicate that the two designed devices exhibit favorable switching functions.

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Section: Introductionmentioning

confidence: 99%

Design of integrated 1×2, 1×4 low driving voltage polymer electro-optic switches based on Y-fed directional couplers

Zheng

Yan

et al. 2009

Journal of Modern Optics

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“…Two types of crystal materials are commonly used for the realization of Pockels cells: beta barium borate (BBO) and deuterated potassium dihydrogen phosphate (DKDP). Both electro-optic crystals suffer from the piezoelectric ringing phenomenon [1][2][3][4][5][6][7]. It is caused by the short edges (≈ 6 ns) of high voltage (up to 6.3 kV) pulses [8] that are required for the operation of the Pockels cell.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Piezoelectric Ringing on the Temperature of the Beta Barium Borate Crystal

2018

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The influence of the piezoelectric ringing on the temperature of the beta barium borate Pockels cell crystal has been investigated. The experimental setup for the investigations was developed. The measurements of the Pockels cell crystal contrast ratio and temperature dependences on the applied high voltage pulse frequency for 10 different 3 mm×3 mm×25 mm beta barium borate Pockels cell crystals were performed. The transients of the beta barium borate Pockels cell temperature were measured at various high voltage pulse frequencies. Two parameters were recorded: the contrast ratio and the crystal temperature. The frequencies, at which the temperature increase caused by the piezoelectric ringing occurs, were determined. It has been shown that the contrast ratio of the beta barium borate Pockels cell crystal does not depend on the temperature. Additionally, the investigation of the deuterated potassium dihydrogen phosphate Pockels cell crystal ringing phenomenon was performed. It has been shown that from the point of view of the contrast ratio temperature stability Pockels cells based on the beta barium borate crystals are more preferable.

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“…The repetition rate had been limited to be on the order of 10's kHz by high voltage electronic driver for the EO switcher and also by the Piezo ringing effect of Pockels cells. Recently, a 1 MHz cavity dumped oscillator and a 200 kHz regenerative amplifier with EO switch has been reported 6,7) . From such a technical background we used a BBO Pockels cell (Lightgate 4, Cleaveland Inc.) to inject seed pulses and to switch out the amplified pulses.…”

Section: Development Of 124 W Femtosecond Lasermentioning

confidence: 99%

A 12.4 W Ti:sapphire Based Regenerative Amplifier System with 200 fs Pulse Width at 50 kHz Repetition Rate

Imahoko

Inoue

Takasago

et al. 2008

The Review of Laser Engineering

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We have developed a cryogenically cooled Ti:sapphire regenerative amplifier at the repetition rate of up to 100 kHz which was pumped by the intracavity SHG pulses of Yb:YAG thin disk laser. An electro-optic (EO) switching device employing a β-barium borate (β-BBO) crystal was used for pulse extraction from the amplifier resonator. The maximum average amplified power obtained was 21 W under the two pumping pump powers of 70 W at 50 kHz and 75 W at 100 kHz. The amplified pulse was able to be compressed to 200 fs by a grating pair compressor, and the output power was 12.4 W at 50 kHz. The cryogenic cooling system made Ti:sapphire crystal capable to be pumped with over 70 W SHG power in order to keep the stable condition of the regenerative amplifier resonator.

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200 kHz electro-optic switch for ultrafast laser systems

Cited by 21 publications

References 19 publications

Design of integrated 1×2, 1×4 low driving voltage polymer electro-optic switches based on Y-fed directional couplers

Design of integrated 1×2, 1×4 low driving voltage polymer electro-optic switches based on Y-fed directional couplers

Influence of the Piezoelectric Ringing on the Temperature of the Beta Barium Borate Crystal

A 12.4 W Ti:sapphire Based Regenerative Amplifier System with 200 fs Pulse Width at 50 kHz Repetition Rate

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